Miscellaneous active electrical nonlinear devices, circuits, and systems inventions 06/09

20090160487 - Phase and frequency detector with zero static phase error: A method and circuit for phase and frequency detection having zero static phase error for use in a phase-locked loop system is presented. The phase and frequency detector utilizes a first phase and frequency detector configured to generate first and second pulsed PFD signals. Pulse blocking circuitry is utilized to... Agent: Finnegan, Henderson, Farabow, Garrett & Dunner LLP

20090160488 - Apparatus and method for clock signal synchronization in jtag testing in systems having modules processing clock signals at different rates: In a test and debug system in which a plurality of modules under test have different operational rates, the system clock and the return clock signals from the modules lose synchronism. An error signal is produced when the clock signal makes a transition to a logic state that is the... Agent: Texas Instruments Incorporated

20090160489 - Method and apparatus for time-differential comparison of an analog signal: A time-differential analog comparator is disclosed. An example apparatus according to aspects of the present invention includes a source of a variable frequency signal having a frequency responsive to an analog input. A counting circuit is coupled to count cycles of the variable frequency signal. The counting circuit is coupled... Agent: Blakely Sokoloff Taylor & Zafman LLP

20090160490 - Reference voltage generator of analog-to-digital converter: A reference voltage generator, which is used in an analog-to-digital converter, minimizes influence of kickback noise by dividing a full scale reference voltage into a number of reference voltages using a ladder resistor unit, and applying the number of reference voltages to a number of comparators, and matches a reference... Agent: Sughrue Mion, PLLC

20090160491 - Information processing apparatus: According to one embodiment, an information processing apparatus includes a device connection detection module which monitors a potential of the signal line by disabling the function of a second pull-up resistor by means of a switch circuit and detects that the first or second device has been connected if the... Agent: Knobbe Martens Olson & Bear LLP

20090160492 - Glitchless clock multiplexer optimized for synchronous and asynchronous clocks: A circuit for switching clock signals with logic devices using a glitchless clock multiplexer optimized for synchronous and asynchronous clocks. The circuit comprises an asynchronous clock group and one or more synchronous clock group(s). The asynchronous group comprises a plurality of high frequency glitchless control (HFGC) blocks for asynchronous clock... Agent: Ibm Corp (ya) C/o Yee & Associates PC

20090160493 - System and method for generating a spread-spectrum clock signal: A circuit for, and method of, generating a spread-spectrum clock signal. In one embodiment, the circuit includes: (a) a modulator configured to generate a modulated control value, and (b) a frequency synthesizer coupled to the modulator and configured to generate a spread-spectrum clock signal based on a variation of the... Agent: Texas Instruments Incorporated

20090160495 - Low power differential signaling transmitter: A low power differential signaling transmitter includes a switchable current source apparatus and a differential signaling generator coupled to the switchable current source apparatus. The switchable current source apparatus receives a first input voltage and a second input voltage, and generates a plurality of reference currents according to the first... Agent: Jianq Chyun Intellectual Property Office

20090160496 - Output driver circuit: In an output driver circuit, a replica circuit includes seventh and eighth transistors corresponding to first and second transistors, respectively, ninth and tenth transistors corresponding to third or fifth, and fourth or sixth transistors in a driver circuit, respectively, and a resistor corresponding to a termination resistor. A reference voltage... Agent: Oliff & Berridge, PLC

20090160494 - Output driving circuits: An output driving circuit is disclosed, providing an output signal at an output node and comprises an inverter and an output driver. A first P-type transistor and a first N-type transistor of the inverter are coupled in series between high and low voltage sources and controlled respectively by first and... Agent: Muncy, Geissler, Olds & Lowe, PLLC

20090160497 - Signal line driving device comprising a plurality of outputs: A driving device that outputs signals of different polarities from plural output terminals includes: a first power source wire that connects power terminals of some of plural first output circuits each outputting a signal of one polarity and power terminals of some of plural second output circuits each outputting a... Agent: Mcginn Intellectual Property Law Group, PLLC

20090160500 - Power management systems with charge pumps: A driving circuit for an N-channel Metal Oxide Semiconductor (NMOS) transistor can include a charge pump unit and a driver coupled to the charge pump. The charge pump can receive a source voltage and output an output voltage higher than the source voltage, where the source voltage is applied to... Agent: O2micro Inc C/o Murabito, Hao & Barnes LLP

20090160499 - Semiconductor output circuit: To improve a depletion transistor provided between a control terminal of an output transistor and an output terminal coupled to a load not to enter a conductive state when the output transistor is in the conductive state. The output transistor is served as a source follower. Control voltages which controlling... Agent: Foley And Lardner LLP Suite 500

20090160498 - Semiconductor output circuit for controlling power supply to a load: Between a control terminal (gate) of an output transistor of a source follower configuration and an output terminal to which a load is coupled, a depletion transistor having a relatively lower breakdown voltage (that is, smaller device-area) is provided as a shutdown transistor of the output transistor, to thereby control... Agent: Foley And Lardner LLP Suite 500

20090160501 - Control signal generating circuit enabling value of period of a generated clock signal to be set as the period of a reference signal multiplied or divided by an arbitrary real number: A pulse signal circulates around a ring of delay elements with respective traversal signals being thereby successively outputted from the delay elements. The period of a reference signal is multiplied or divided by a real number to obtain control data specifying a required period of a clock signal as a... Agent: Posz Law Group, PLC

20090160502 - Frequency multiplier: A frequency multiplier is provided that includes a switching component having a plurality of differential pairs of transistors. The frequency multiplier further includes a gain stage. A common mode feedback generated by the switching component is also provided to the gain stage.... Agent: Autoliv Asp Inc

20090160503 - Triangle wave generator and spread spectrum control circuit thereof: A triangle wave generator with function of spreading frequency spectrum is provided. The triangle wave generator includes a switch control circuit, a current generator, an integrator, and a spread spectrum control circuit. The switch control circuit provides an internal clock and a switch control signal. The current generator is coupled... Agent: Jianq Chyun Intellectual Property Office

20090160504 - Methods and systems for synchronizing a control signal of a slave follower with a master source: A method for synchronizing a slave follower with a master source is provided. The method includes defining a relationship between the master source and the slave follower, inputting a first position of the master source, and inputting a first position of the slave follower. The method also includes defining a... Agent: General Electric Company Ge Global Patent Operation

20090160506 - Power-on clear circuit: Provided is a power-on clear circuit which normally operates. Even when a rising speed of a power supply voltage is slow, or when the power supply voltage rises from a voltage other than a ground voltage, a voltage of a node (C) is unlikely to become unstable owing to provision... Agent: Brinks Hofer Gilson & Lione

20090160505 - Power-up circuit reducing variation in triggering voltage caused by variation in process or temperature in semiconductor integrated circuit: A power-up circuit that can reduce a variation of the triggering voltage that is caused by variations in process or temperature in a semiconductor integrated circuit is described. The power-up circuit includes a first detector for outputting a first triggering voltage signal according to a power voltage level and a... Agent: Ladas & Parry LLP

20090160507 - Apparatus and method for clock signal synchronization in jtag testing in systems having selectable modules processing data signals at different rates: In a test and debug system in which a plurality of selectable modules under test have different operational rates, a selection unit associated with each module is used to control the application of the RCLK signal from the module to the adder unit, the adder unit providing a composite RCLK... Agent: Texas Instruments Incorporated

20090160509 - Overclocking with phase selection: A novel solution that combines the technologies of fractional divider and phase selection is provided to implement over-clocking for CPU PLL in PC clock generator with a set resolution that is independent of the clock frequency.... Agent: Finnegan, Henderson, Farabow, Garrett & Dunner LLP

20090160508 - Pll circuit: Phase jitter of the hybrid control type PLL circuit in a steady state is reduced. A steady state detection circuit determining whether an output of a phase comparison circuit in the hybrid control type PLL circuit frequently changes is provided, determination that a steady state has not been reached is... Agent: Stanley P. Fisher Reed Smith LLP

20090160510 - Bias voltage generation circuit and clock synchronizing circuit: Bias voltage generator circuit and clock synchronizing circuit includes a bias unit configured to control a current in response to a bandwidth control signal, an amplification unit configured to differentially amplify an input signal in response to the current controlled by the bias unit and an output unit configured to... Agent: Blakely Sokoloff Taylor & Zafman LLP

20090160511 - Pll circuit: The PLL circuit includes: a voltage control oscillating circuit including: a voltage-current converter circuit; a current adder; and a current control oscillating circuit, the voltage control oscillating circuit outputting a pulse having a frequency corresponding to a control voltage and a control current; a phase detector which outputs a first... Agent: Brinks Hofer Gilson & Lione

20090160512 - Delay control circuit and delay control method: A delay control circuit in which steady phase error can be eliminated has a first variable delay circuit and a first phase control circuit. The delay control circuit further includes a second variable delay circuit disposed in either a first or second clock path, and a second phase control circuit... Agent: Mcginn Intellectual Property Law Group, PLLC

20090160513 - Signal generating apparatus and class-d amplifying apparatus: A time period control unit controls a time length “TU” of each of unit terms “U” in a variable manner. A pulse-width modulating unit is arranged by a holding unit, a counting unit, and a waveform generating unit. The holding unit holds thereinto a plurality of data “XD” every unit... Agent: Pillsbury Winthrop Shaw Pittman LLP

20090160514 - Chip structure capable of smoothing slope of signal during conversation: The present invention discloses a chip structure capable of smoothing slope of signal during conversion. And the chip structure is suitable for a DC motor which is embedded in a portable electronic device. The DC motor is for adjusting the focal distance of a digital camera which is installed within... Agent: Bacon & Thomas, PLLC

20090160515 - Auto-tracking clock circuitry: A system and method for generating a clock signal is disclosed. In various embodiments of the invention disclosed herein, a global clock signal is generated and provided as an input to local clock circuitry operable to generate a local clock signal therefrom. The local clock circuitry comprises logic components that... Agent: Hamilton & Terrile, LLP IBM Austin

20090160516 - Duty cycle correction circuit for high-speed clock signals: The present invention implements an apparatus for correcting duty cycle distortion in high speed clock signals. The apparatus includes delay cells that delay each of first and second differential initial clock signals. The apparatus further includes a latch that generates an output clock signal based on the delayed first and... Agent: Ryan, Mason & Lewis, LLP

20090160517 - Flip-flop: An apparatus comprises a first stage, a second stage, and a switch circuit. The first stage and the second stage are coupled between a first reference voltage and a second reference voltage. The first stage has a first input end for receiving an input signal and a first output end... Agent: North America Intellectual Property Corporation

20090160518 - Method implementing periodic behaviors using a single reference: A method for processing information is described. The method includes providing a phase reference, Φi, where the phase reference comprises N distinct values, expressed as Φi=Φ0 . . . ΦN−1. A reset signal is received. The phase reference, Φ0, is initialized in response to receipt of the reset signal. The... Agent: Barnes & Thornburg LLP

20090160519 - Programmable delay circuit with integer and fractional time resolution: A programmable delay circuit capable of providing a delay with integer and fractional time resolution is described. In one exemplary design, an apparatus includes first and second delay circuits. The first delay circuit provides a first delay of an integer number of time units. The second delay circuit couples to... Agent: Qualcomm Incorporated

20090160520 - Variable delay circuit and delay amount control method: A variable delay circuit comprising a first delay element configured to delay an input signal, a second delay element coupled to the first delay element in parallel and also configured to delay the input signal, a control current supply section configured to supply control currents for adjusting a delay amount... Agent: Fujitsu Patent Center C/o Cpa Global

20090160521 - Low vt dependency rc oscillator: An oscillator utilizes two current sources that have the same temperature and VDD dependency so they generate the same current in changing conditions. Therefore, there is very low VT dependency. The resistor and fringe capacitor temperature coefficient are very low and opposite so they compensate for each other. A comparator... Agent: Weaver Austin Villeneuve Sampson LLP

20090160522 - Dc restoration circuit allowing sparse data patterns: The present invention provides a device for restoring a DC component in a differential digital data stream. The device comprises a first and second peak detector for detecting peaks in the differential digital data stream, a memory element for storing an average of the first and second detected peak signals... Agent: Bacon & Thomas, PLLC

20090160525 - Level shift circuit: An amplifier including the transistors of a first set operates by a power source VCC2, and amplifies the input signal, changing in the voltage range of the power source VCC2, in the voltage range of the power source VCC2. The output of this amplifier operates using a power source VCC1... Agent: Osha Liang L.L.P.

20090160524 - Level slider circuit: The invention relates to a level slider circuit having a first level slider (1) and a second level slider (2) switched in series for the conversion of an input signal (Vin) from a first operating voltage range (A) at a first ground voltage (VSSA) and a first supply voltage (VDDA)... Agent: Duane Morris LLP - Princeton

20090160523 - Receiving higher-swing input signals when components of an integrated circuit are fabricated using a lower-voltage process: An aspect of the present invention provides an input block which can receive input signals of a higher voltage swing when the internal components are fabricated using a lower voltage process. In an embodiment, the input block is designed to prevent current flow into an input signal path when the... Agent: Texas Instruments Incorporated

20090160526 - Digital divider for low voltage logen: Digital divider for low voltage LOGEN. LOGEN is a local oscillator generator. One implementation presented herein provides for a pseudo-complementary metal-oxide-semiconductor (CMOS), in that, it is not a true CMOS type circuitry that has no DC current dissipation, but nevertheless does operate well at relatively high frequencies and relatively low... Agent: Garlick Harrison & Markison

20090160527 - High frequency switching circuit: There is provided a high frequency switching circuit having good characteristics of high-order harmonics that has little variation. A high frequency switching circuit according to an aspect of the invention may include: a high frequency switch having one end connected to an input terminal receiving a high frequency signal and... Agent: Lowe Hauptman Ham & Berner, LLP

20090160528 - Method for regulating temperature: A method and circuit for managing thermal performance of an integrated circuit. Temperature sensing circuits and a plurality of power FETs that are coupled together in parallel are manufactured from a semiconductor substrate. Each temperature sensing circuit monitors the temperature of the portion of the semiconductor substrate near or including... Agent: Mr. Jerry Chruma Semiconductor Components Industries, L.L.C.

20090160529 - Touch sensor system: A touch sensor assembly. The touch sensor assembly may include a housing, at least one touch sensor and a sensor cover. The sensor cover may identify a touch area associated with each touch sensor. The housing may form a water tight cavity for the sensor cover and the touch sensor... Agent: Grossman, Tucker, Perreault & Pfleger, PLLC

20090160530 - Semiconductor device with reduced layout area having shared metal line between pads: A semiconductor device with a reduced layout area includes pads disposed between a first voltage line and a second voltage line; first and second driver units adjacently disposed at an upper portion or a lower portion of the respective pads; and a metal line disposed between the pads and supplying... Agent: Ladas & Parry LLP

20090160531 - Multi-threshold voltage-biased circuits: A circuit and a method of operation to reduce dynamic and static power dissipation in the circuit are disclosed. The circuit is multi-threshold, voltage-biased and includes a p-channel field effect transistor (FET) and an n-channel FET. A source terminal of the p-channel FET interconnects to a higher-voltage rail of a... Agent: Advanced Micro Devices, Inc. C/o Vedder Price P.C.

20090160532 - Charge pump circuit: A charge-pump circuit without reverse current is disclosed. The charge-pump circuit includes: several diode equivalent networks connecting in series, between any two of adjacent diode equivalent networks having a node with a corresponding voltage-boost level, wherein the low voltage end in the diode equivalent network with lowest voltage-boost level is... Agent: Wang Law Firm, Inc.

20090160534 - Circuit arrangement for providing a voltage supply for a transistor driver circuit: The invention relates to a circuit arrangement for providing a voltage supply for a driver circuit for driving a semiconductor switch. The circuit arrangement has: a first bootstrap circuit which is supplied with a first auxiliary voltage referring to a lower supply potential, the bootstrap circuit comprising a first capacitor... Agent: Coats & Bennett/infineon Technologies

20090160533 - Dc-dc voltage converter having stabilized divided output voltage: A DC-DC voltage converter includes a current comparator converting a fixed reference voltage and an input voltage to a corresponding reference current and input current. The current comparator compares levels of the reference current and input current to output a control signal. A charge pump converts an output voltage to... Agent: Ladas & Parry LLP

20090160536 - Electronic device, load fluctuation compensation circuit, power supply, and test apparatus: Provided is a load fluctuation compensation circuit, including a first delay circuitry section that delays a clock signal supplied thereto by a delay amount that fluctuates by a prescribed first fluctuation amount in relation to a unit fluctuation amount of a power supply voltage supplied to a performance circuit; a... Agent: Jianq Chyun Intellectual Property Office

20090160535 - Temperature and process-stable magnetic field sensor bias current source: A temperature and process-stable magnetic field sensor bias current source provides improved performance in Hall effect sensor circuits. A switched-capacitor sensing element is used to sense either a reference current or the bias current directly. A current mirror may be used to generate the bias current from the reference current,... Agent: Mitch Harris, LLC - Cirrus

20090160537 - Bandgap voltage reference circuit: A bandgap voltage reference circuit with an inherent curvature correction which comprises an amplifier having an inverting terminal, a non-inverting terminal and an output terminal is described. A first and second bipolar transistor operable at different current densities are provided each of the transistors being coupled to a corresponding one... Agent: Wolf Greenfield & Sacks, P.C.

20090160538 - Low voltage current and voltage generator: A bandgap reference circuit which is operable in low supply conditions is described. Such a circuit includes a second amplifier and a resistor at the output of a bandgap reference cell to create a constant current summing node at which PTAT and CTAT currents are summed. In modifications to the... Agent: Wolf Greenfield & Sacks, P.C.

20090160540 - Power-up circuit for reducing a variation in triggering voltage in a semiconductor integrated circuit: A power-up circuit for reducing a variation in triggering voltage in a semiconductor integrated circuit is described. The power-up circuit includes a pull-up resistor unit that is connected to a power voltage source. A pull-up resistance adjusting unit varies the resistance value of the pull-up resistor unit. The power-up circuit... Agent: Ladas & Parry LLP

20090160539 - Voltage reference circuit: A voltage reference circuit comprises a current mirror set, a first resistor, a first MOS transistor, and a second MOS transistor. The output end of the current mirror set is coupled to a first resistor, and the node of the current mirror set is coupled to the first MOS transistor,... Agent: Birch Stewart Kolasch & Birch

20090160541 - Digital photo frame with power saving function and related power saving method: A digital photo frame having power saving functions includes a display panel, a power generation unit for switching a system power according to a power control signal, a user detection unit installed on the display panel for detecting whether a user exists within a specific range to generate a user... Agent: North America Intellectual Property Corporation

20090160542 - Stable voltage generating circuit for a delay locked loop and semiconductor memory device including the same and method of generating a stable voltage for a delay locked loop: A stable voltage generating circuit for a delay locked loop for generating a stable internal voltage for a delay locked loop and a semiconductor memory device including the same, and a method of generating a stable voltage for a delay locked loop is disclosed. The voltage generating circuit includes a... Agent: Ladas & Parry LLP

20090160543 - Noise protector: A noise protector includes a first noise control block for NORing an input signal and a first trimmed input signal and providing an output; a second noise control block for NANDing the input signal and a second trimmed input signal and providing an output; and an output signal generation block... Agent: Townsend And Townsend And Crew, LLP

20090160544 - Semiconductor integrated circuit: A scan chain configuration and a control method for the same are provided, which are optimized for the leakage current reduction technique by a vector input in SoC in which many functional blocks are mounted. The semiconductor integrated circuit includes: plural power domains (Area1-AreaN) which have plural functional blocks; power... Agent: Miles & Stockbridge PC

20090160545 - Dual voltage switching circuit: A dual voltage switching circuit includes an input terminal receiving a control signal, an output terminal, three transistors, and a Zener diode. The gate of the first transistor is connected to the input terminal. The drain of the first transistor is connected to a standby power and the gate of... Agent: PCe Industry, Inc. Att. Steven Reiss

20090153195 - Comparator module: A comparator module applied to a voltage level clamping circuit which can be implemented in an integrated circuit (IC) is provided. The IC includes a parasitic diode coupled between a first voltage source and a second voltage source. The voltage level clamping circuit includes a switch module and a comparator... Agent: North America Intellectual Property Corporation

20090153196 - Voltage comparator having improved kickback and jitter characteristics: A comparator apparatus for comparing a first and a second voltage input includes a pair of cross-coupled inverter devices, including a pull up device and a pull down device, with output nodes defined between the pull up and pull down devices. A first switching device is coupled to the first... Agent: Cantor Colburn LLP - IBM Austin

20090153197 - Method of transmitting audio and video signals using one connector and electronic device using same: An electronic device includes a connector, at least two kinds of signal transmitting circuits, and a selecting system. The connector is capable of transmitting audio and video signals when connected to a peripheral device. The selecting system includes a detecting module, a memory module, a comparing module, and a connecting... Agent: PCe Industry, Inc. Att. Steven Reiss

20090153198 - Low-leakage switch for sample and hold: An integrated electronic device includes a sample and hold stage. The sample and hold stage has a sampling capacitor (C) for an input voltage at an input node (Vin), a first switch (S1) coupled between the input node (Vin) and the sampling capacitor (C) for connecting the input node (Vin)... Agent: Texas Instruments Incorporated

20090153200 - Load drive circuit: A load drive circuit which can operate at high speed with low consumption current while performing the gate-to-source over voltage protection for its load driving field-effect transistor. A Zener function device is connected between the gate and the source of the load driving field-effect transistor, and an on/off-switch circuit to... Agent: Volentine & Whitt PLLC

20090153199 - Operational comparator, differential output circuit, and semiconductor integrated circuit: An operational comparator 10 includes a current source circuit, load circuits driven by the current source circuit, and a current mirror circuit. The load circuits are constituted with MOS transistors, predetermined reference voltage is supplied to the gate terminals of MOS transistors, and each of signal voltages constituting the differential... Agent: Oliff & Berridge, PLC

20090153201 - Differential multiphase frequency divider: A multiphase divider comprises several differential latches connected in a ring. The number of latches in the ring is equal to the number of phases produced and the divisor applied to the input clock. The differential Q-outputs of one latch stage are connected to the corresponding differential D-inputs of the... Agent: Nxp, B.v. Nxp Intellectual Property Department

20090153202 - Synchronization circuit: A synchronization circuit includes a first flip-flop circuit to hold an input signal which is asynchronous to a clock signal by the clock signal, and output an output signal, a second flip-flop circuit to hold the input signal by a signal of an opposite phase to the clock signal and... Agent: Dickstein Shapiro LLP

20090153203 - Pll circuit: A PLL comprises a current-controlled oscillator (18) for generating an output clock signal based on a current signal generated based on a phase difference between a reference clock signal and a feedback clock signal, a current source (28), and an initialization switch (26) for performing an open/close operation based on... Agent: Mcdermott Will & Emery LLP

20090153204 - Phase locked loop circuit and semiconductor integrated circuit device using the same: To provide a phase locked loop circuit that is capable of performing an automatic adjustment that satisfies a desired characteristic not depending on a process variation and an environmental variation. The phase locked loop circuit has a phase frequency comparator, a charge pump, a loop filter, a frequency divider, a... Agent: Miles & Stockbridge PC

20090153205 - Methods, devices, and systems for a delay locked loop having a frequency divided feedback clock: Methods, devices, and systems are disclosed for a delay locked loop. A delay locked loop may comprise a delay line configured to receive a reference clock signal and output a delayed clock signal. The delay locked loop may also comprise a feedback loop including a frequency divider operably coupled to... Agent: Trask Britt, P.C./ Micron Technology

20090153206 - Optical driver including a multiphase clock generator having a delay locked loop (dll), optimized for gigahertz frequencies: t

20090153207 - Method of forming a pwm controller and structure therefor: In one embodiment, a PWM controller is configured to inhibit forming a drive signal responsively to an overload sense signal having a value that is no greater than a first value for a first time interval and to form a first duration of the first time interval responsively to the... Agent: Semiconductor Components Industries, LLC Intellectual Property Dept. - A700

20090153208 - Pulse width modulation driver for electroactive lens: An electroactive lens driver generates a variable root-mean-square drive voltage for controlling an electroactive lens by controlling the duty cycle of a modified square wave.... Agent: Weiss & Moy PC

20090153209 - Programmable high-speed cable with printed circuit board and boost device: An HDMI cable carries high speed encoded data which are transmitted differentially over data channels, along with a clock. High-frequency loss and differential skew within a differential signal may be compensated by analog circuits embedded in the cable. These embedded circuits are tuned at production for best performance by observing... Agent: Victoria Donnelly

20090153211 - Integrated circuit device core power down independent of peripheral device operation: In an integrated circuit device, a circuit for maintaining asserted values on an input output pin of the device when a functional block of the device is placed in a sleep mode. The circuit includes an interface for coupling a functional block of a processor to an input and output... Agent: Murabito Hao & Barnes LLP

20090153210 - Maintaining output i/o signals within an integrated circuit with multiple power domains: An integrated circuit is provided with a power domain PD0, PD1, PD2, PD3 which can be selectively powered-up or powered-down. An output circuitry 8 serving to buffer a signal 12 generated by the core circuitry 10 within such a power domain has its own output power supply voltage IOVdd. An... Agent: Nixon & Vanderhye, PC

20090153212 - Clock generators for generation of in-phase and quadrature clock signals: Clock generator embodiments are provided to generate half-rate I and Q clock signals. The generators are configured to insure fan-out limitations, to insure correct phasing at startup, to reduce the number of signal inverters in a critical path, and to reduce the total number of inverter structures to thereby substantially... Agent: Koppel, Patrick, Heybl & Dawson

20090153213 - Method for reducing delay difference of differential transmission and system thereof: The present invention discloses a system and method for reducing delay difference of differential transmission, a certain delay difference between waveforms of the P signal and N signal is generated through controlling delay adjustment to P signal or N signal of the differential signals and controlling delay adjustment value simultaneously,... Agent: Leydig, Voit & Mayer, Ltd (for Huawei Technologies Co., Ltd)

20090153214 - Delay element, variable delay line, and voltage controlled oscillator, as well as display device and system comprising the same: To provide, with a simple structure, a voltage controlled oscillator, etc., whose center oscillation frequency is stable even if there is a change in the temperature. A delay element includes: a delay generating part which adds a delay amount to an input signal to generate an output signal; and a... Agent: Sughrue Mion, PLLC

20090153215 - Clock distribution circuit: A circuit includes a clock generator to provide a clock signal, and a clock distribution circuit coupled to the clock generator and a plurality of pairs of outputs. The clock distribution circuit includes a plurality of adjustment circuits to generate a plurality of pairs of clock signals in accordance with... Agent: Morgan Lewis & Bockius LLP/rambus Inc.

20090153216 - Io driver circuit with output stage configurable as a thevenin terminator: An IO driver circuit incorporates an output stage control circuit that selectively configures an output stage for the IO driver circuit to operate as a thevenin termination whenever the IO driver circuit is receiving a signal from an input/output node to which the IO driver circuit is coupled. The output... Agent: Wood, Herron & Evans, L.L.P. (ibm)

20090153217 - Active clamp switching circuit: An active clamp switching circuit includes a transformer having a primary winding and a secondary winding, a first switch, a capacitor, an impedance device, a second switch and a rectifier. The capacitor, the impedance device and the second switch form a reset loop for the primary winding so that the... Agent: Troxell Law Office PLLC One Skyline Place

20090153218 - Level shift circuit with power sequence control: A level shift circuit for providing predictable outputs when VDDH is powering up and minimizing DC current when VDDL is powering up. The level shift circuit may have a control circuit that includes a first inverter with an input coupled to VDDL, one or more diodes coupled between the first... Agent: Honeywell International Inc.

20090153219 - Replica bias circuit for high speed low voltage common mode driver: A transmitter provides fast settling times, slew rate control, and power efficiency while reducing the need for large external capacitors. The transmitter typically includes a pre-driver, driver, and replica circuit. The pre-driver can shift the voltage level of an input signal to produce a shifted signal. The pre-driver can shift... Agent: Blakely Sokoloff Taylor & Zafman LLP

20090153220 - Source driver and power down detector thereof: The present invention discloses a source driver powered by a power supply comprising at least one channel, at least one output pad coupled to the channel, at least one switch connected between the output pad and a predetermined voltage, and a power down detector for detecting whether a first supply... Agent: Hayes Soloway P.C.

20090153221 - Polyphonic sound generating method: Method of driving an acoustic piezoelectric transducer (6) characterized in that a signal (8), resulting from the time multiplexing of at least two rectangular periodic signals (12a, 12b) of different frequencies and having pulses of fixed duration and whose duty cycle is less than 0.5, is applied to the terminals... Agent: Griffin & Szipl, PC

20090153222 - Non-reflective mpnt switch: A non-reflective ring topology MPNT switching device comprises at least two poles, at least four throws, plural main switches, and plural bridge switches. The bridge switches enable all throws to be non-reflective throughout a wide frequency range. Each main switch is connected between one of the poles and one of... Agent: Joyce E. Lauer

20090153223 - Igbt-driver circuit for desaturated turn-off with high desaturation level: A driver circuit comprising an insulated gate bipolar transistor having a collector coupled to a voltage supply, an emitter coupled to a source of reference potential, and a gate configured to receive a control signal from a driver circuit, and a desaturation circuit conductively coupled between an insulated gate and... Agent: Schwegman, Lundberg & Woessner / Infineon

20090153224 - Circuit for turning on motherboard: An exemplary circuit for turning on a motherboard comprises a first switch module comprising a first terminal arranged to receive a standby power and connected to a sixth terminal of a computer front panel header, a second terminal arranged to receive the standby power, and a control terminal; a timing... Agent: PCe Industry, Inc. Att. Steven Reiss

20090153225 - Load driving device: A load driving device according to an aspect of the invention may includes an output transistor connected between a power supply line and an output terminal, a load connected between the output terminal and a first ground line, a control circuit connected between a gate of the output transistor and... Agent: Mcginn Intellectual Property Law Group, PLLC

20090153226 - High-side driver for providing an off-state in case of ground loss: An electronic device has circuitry for driving a high side switch. The circuitry has a high side driver including a first switch and a second switch being coupled to each other by a driver output node. The driver output node is adapted to be coupled to a control input of... Agent: Texas Instruments Incorporated

20090153227 - Temperature sensor circuit: A temperature sensor circuit is provided that facilitates preventing a too-high overshooting voltage from occurring at an output terminal when a power supply is connected to the temperature sensor circuit. The temperature sensor circuit includes a short-circuiting device, disposed in parallel to depletion mode NMOS, that short-circuits the drain and... Agent: Rossi, Kimms & Mcdowell LLP.

20090153228 - Structure for improving fuse state detection and yield in semiconductor applications: Disclosed is a design structure of an apparatus incorporating a detection circuit adapted for determining the state of selected fuses and a programming circuit for blowing selected fuses on demand. Also, disclosed are embodiments of an associated method. The detection circuit comprises a plurality of fuses in identical signal and... Agent: Frederick W. Gibb, Iii Gibb Intellectual Property Law Firm, LLC

20090153229 - Method for signal transmission between semiconductor substrates, and semiconductor component comprising such semiconductor substrates: An AC voltage signal is transmitted between a semiconductor substrate and a further semiconductor substrate arranged on the first semiconductor substrate by means of an electromagnetic field through one of the two semiconductor substrates by virtue of each semiconductor substrate having a circuit element that serves for transmission. Both circuit... Agent: Slater & Matsil, L.L.P.

20090153231 - Diode connected regulation of charge pumps: A circuit including a charge pump and regulation circuitry is described. The output of the charge pump is connected to provide a first output signal that is connectable to drive a load. A diode is connected to provide a second output signal of lower voltage from the first output signal.... Agent: Davis Wright Tremaine LLP - Sandisk Corporation

20090153232 - Low voltage charge pump: A single pump stage of a multi-stage charge pump couples a first low-voltage NMOS transistor in series with a first low-voltage PMOS transistor between charge transfer capacitors. A second low-voltage NMOS transistor is coupled between the gate and the source of the first NMOS transistor. A second low-voltage PMOS transistor... Agent: Schwegman, Lundberg & Woessner / Atmel

20090153230 - Low voltage charge pump with regulation: Techniques of providing a low output voltage, high current capability charge pump are given. The charge pump has multiple capacitors along with switching circuitry. In an initialization phase, the first plate of each of the capacitors is connected to receive a regulator voltage and the second plate of each capacitor... Agent: Davis Wright Tremaine LLP - Sandisk Corporation

20090153233 - Bias circuit: A gm compensation current source controls current that runs through a current source transistor, source-grounded transistors that determine a gain so that mutual conductance gm of the source-grounded transistors is compensated and the gain is compensated. A 1/r current source runs current inversely proportional to variation of load resistors of... Agent: Katten Muchin Rosenman LLP

20090153234 - Current mirror device and method: In an embodiment, a circuit is disclosed that includes a current mirror including a first transistor pair and a second transistor pair. The first transistor pair includes a first transistor and a second transistor. The second transistor pair includes cascode transistors. The circuit also includes an operational amplifier having an... Agent: Toler Law Group

20090153235 - Load controller: A load controller includes: a first input circuit which detects that a drive instruction signal by an operation of a drive instructing unit is less or equal to a first input threshold value; a first constant current source activated in accordance with the detection; a PWM signal supply unit that... Agent: Sughrue-265550

20090153236 - Power control circuit with low power consumption: The available battery power on autonomously powered mobile electronic devices, in particular smartcards, is very small but requires a very long shelf life. Thus, even very small rest currents are a big power issue. The invention discloses a power save circuit and method, where a single power switch, e.g. a... Agent: Philips Intellectual Property & Standards

20090153237 - Compensation capacitor network for divided diffused resistors for a voltage divider: A voltage divider of a voltage regulator system is disclosed utilizing divided diffused resistors. In one embodiment, a feed-forward capacitor network is connected across the resistors and the voltage divider output. The feed-forward capacitor network allows the output to rise and fall quickly with a change in the voltage divider... Agent: Knobbe Martens Olson & Bear LLP

20090153238 - Method and system for reducing a dynamic offset during the processing of asymmetric signal strings: The invention relates to a method and a system for reducing a dynamic offset during the processing of asymmetric signal strings. The aim of the invention is to provide a method and a system for reducing a dynamic offset which allows to reduce any disturbing influence on subsequent process steps.... Agent: Heslin Rothenberg Farley & Mesiti PC

20090153239 - Variable-impedance gated decoupling cell: Embodiments of the present invention provide a system that controls noise in a power system that includes a power rail and a ground rail. The system includes a MOS transistor coupled in series with a decoupling capacitor between the power rail and the ground rail and an inductive packaging connection... Agent: Pvf -- Synopsys, Inc C/o Park, Vaughan & Fleming LLP

20090146694 - Circuit and method for preventing bang-bang error, calibration circuit including the circuit, and analog-to-digital converter including the circuit: A circuit including a comparing unit for comparing a target voltage with a stepwise-varying tracking voltage, a counting unit for counting a code according to the comparison result of the comparing unit and a control signal generating unit for generating a signal for controlling a counting operation of the counting... Agent: Mannava & Kang, P.C.

20090146697 - Circuit for buffering having a coupler: The buffer circuit includes a differential amplifier differentially amplifying a reference node corresponding to a reference voltage and an input node corresponding to the input signal by sensing a potential difference of the reference voltage and the input signal. A coupling unit couples the input signal to the reference node,... Agent: Ladas & Parry LLP

20090146696 - Class-ab driver design with improved frequency response: A class-AB driver design with improved frequency response is disclosed. In one embodiment, the class-AB driver includes a push-pull output stage, a trans-linear loop, an input stage, a current biasing and enabling circuit. Further, the trans-linear loop is coupled to a signal input terminal ABIN via node A, and the... Agent: Wade James Brady Iii Texas Instruments Incorporated

20090146695 - Hybrid ic for ultrasound beamformer probe: A hybrid integrated circuit package for a microbeamformer in an ultrasound probe includes a substrate, a driver circuit for generating transmit pulses to be transmitted to the transducer elements of the probe for producing a transmit beam, and a beamformer circuit including time delay circuits and a summation circuit, the... Agent: Philips Intellectual Property & Standards

20090146698 - Driving circuit and a pixel circuit incorporating the same: A driving circuit includes: a switch unit operable according to a scan signal, and adapted for permitting transfer of a data signal when operating in an on state; a capacitor having a first end that is coupled to the switch unit, and a second end; a first transistor having a... Agent: Ladas & Parry LLP

20090146699 - Dual-modulus prescaler circuit operating at a very high frequency: The dual-modulus prescaler circuit (1) is devised to operate at a very high frequency. This circuit includes an assembly formed of two dynamic D-type flip flops (12, 13), and two NAND logic gates (15, 16) arranged in negative feedback between the two flip flops. The two flip flops are clocked... Agent: Griffin & Szipl, PC

20090146700 - Duty ratio correction circuit: A duty ratio correction circuit including a reference clock generation block configured to generate first and second reference clocks that synchronize with rising and falling edges of an external clock and have a primarily corrected duty ratio, and a duty ratio adjustment block for generating first and second internal clocks... Agent: Baker & Mckenzie LLP Patent Department

20090146701 - Semiconductor device including memory cell having charge accumulation layer: A semiconductor device includes MOS transistors, capacitor elements, a voltage generating circuit, a contact plug, and a memory cell. The MOS transistor and the capacitor element are formed on a first one of the element regions and a second one of the element regions, respectively. In the voltage generating circuit,... Agent: Oblon, Spivak, Mcclelland Maier & Neustadt, P.C.

20090146702 - Charge pump and method for operating the same: A charge pump comprises a ring oscillator and a pumping circuit. The ring oscillator provides a plurality of oscillating clocks. The pumping circuit includes a plurality of pumping blocks coupled to each other for outputting a boosted voltage, and each pumping block is connected to a corresponding oscillating clock.... Agent: Connolly Bove Lodge & Hutz LLP

20090146703 - Oscillation circuit, test apparatus and electronic device: Provided is an oscillation circuit for generating an oscillation signal synchronized with a supplied reference clock, including: a voltage control oscillation section that, when triggered by each edge of the reference clock, stops oscillation of the oscillation signal having a frequency in accordance with a supplied control voltage to start... Agent: Jianq Chyun Intellectual Property Office

20090146711 - Clock signal generating circuit, display panel module, imaging device, and electronic equipment: A delay synchronization loop type clock signal generating circuit includes: a delay line for delaying a first clock signal by a set delay amount and outputting; a delay time length setting unit for setting a delay time length of the delay line, based on phase difference between a second clock... Agent: Sonnenschein Nath & Rosenthal LLP

20090146709 - Delay circuit of delay locked loop having single and dual delay lines and control method of the same: A delay circuit in a delay locked loop includes a first delay circuit unit for delaying an input signal using a single delay line in response to first control signals and then outputting a first delay signal and a second delay signal, and a second delay circuit unit for delaying... Agent: Baker & Mckenzie LLP Patent Department

20090146704 - Delay locked loop circuit and method for eliminating jitter and offset therein: A delay locked loop (DLL) circuit is provided. The DLL circuit includes a divider, a shift register, a digital-to-analog converter and a voltage controlled delay line. The divider divides an input clock signal to output a reference clock signal. The shift register is triggered by the reference clock signal and... Agent: Hayes Soloway P.C.

20090146705 - Delay locked loop circuit and method for eliminating jitter and offset therein: A delay locked loop circuit (DLL) is provided. The delay locked loop circuit includes a shift register, a digital-to-analog converter and a voltage controlled delay line. The shift register outputs a digital signal in accordance with a phase difference between an input signal and a feedback signal. The digital-to-analog converter... Agent: Hayes Soloway P.C.

20090146712 - Delay-locked loop (dll) system for determining forward clock path delay: A delayed locked loop (DLL) system and method for determining a forward clock path delay are disclosed. One embodiment of the DLL system includes a delay line having a plurality of delay stages. The DLL system also includes a measure shot device configured to determine a forward clock path delay... Agent: Knobbe Martens Olson & Bear LLP

20090146707 - Dll circuit and method of controlling the same: A delay locked loop (DLL) circuit includes an initial operation setting unit configured to generate an initial operation signal in response to a reference clock signal and an operation start signal; a shift register configured to generate a delay control code in response to the initial operation signal, a phase... Agent: Baker & Mckenzie LLP Patent Department

20090146708 - Dll circuit and method of controlling the same: A delay locked loop (DLL) circuit includes a first delay control unit configured to generate a first delay control signal in response to a first phase detection signal to control a delay amount of a first delay line and to output a first delay amount information signal, a second delay... Agent: Baker & Mckenzie LLP Patent Department

20090146706 - Dll clock signal generating circuit capable of correcting a distorted duty ratio: A DLL (Delay Locked Loop) clock signal generating circuit includes a duty correction buffer for receiving a first clock signal and a second clock signal, producing a first internal clock signal and a second internal clock signal, and correcting duty ratios of the first and second internal clock signals based... Agent: Baker & Mckenzie LLP Patent Department

20090146710 - Signal generating circuit: A signal generating circuit includes an input stage delay circuit which can switch a state of outputting a reference clock and a state of outputting a signal delaying the reference clock by a first time which is shorter than one cycle of the reference clock, a control section including a... Agent: Foley And Lardner LLP Suite 500

20090146713 - Clock signal generating circuit, display panel module, imaging device, and electronic equipment: A delay synchronization loop type clock signal generating circuit includes: a digital delay line for delaying a first clock signal and generating a second clock signal; a ring-type shift register for setting the delay time length of the digital delay line by flip-flop output of each stage thereof; and a... Agent: Sonnenschein Nath & Rosenthal LLP

20090146714 - Driver circuit: A driver circuit facilitates reducing noises and losses and improving the driving performances thereof without connecting a series circuit of capacitor and a resistor to the gate of IGBT. The driver circuit includes a slope setting circuit that sets the gate voltage waveform of IGBT; and an operational amplifier that... Agent: Rossi, Kimms & Mcdowell LLP.

20090146715 - Duty cycle calibration for receiver clock: Embodiments of the invention are generally directed to systems, methods, and apparatuses for the direct duty cycle calibration of a receiver clock. In some embodiments, an integrated circuit includes a receive (RX) data path, a RX clock path, and a control path. In some embodiments, the control path uses RX... Agent: Philip A. Pedigo Intel Corporation

20090146716 - Timing control circuit, timing generation system, timing control method and semiconductor memory device: A timing control circuit DLY1 receives clock signal CKa with period T1 and activation signal ACT and outputs fine timing signal FT with delay of m*T1+tda measured from the clock signal where m denotes a non-negative integer and tda denotes delay in the analog delay element. The timing control circuit... Agent: Mcdermott Will & Emery LLP

20090146717 - Increasing charge capacity of charge transfer circuits without altering their charge transfer characteristics: A technique for increasing the charge storage capacity of a charge storage device without changing its inherent charge transfer function. The technique may be used to implement a charge domain signal processing circuits such as Analog to Digital Converters (ADCs) used in digital radio frequency signal receivers.... Agent: Hamilton, Brook, Smith & Reynolds, P.C.

20090146718 - Delay circuit: A delay circuit is disclosed for providing highly stable delay time in digital signal processing. The delay circuit includes a preliminary charging/discharging circuit, a signal processing circuit and an output circuit. The preliminary charging/discharging circuit performs charging and discharging operations based on a logic input signal for generating a voltage... Agent: North America Intellectual Property Corporation

20090146719 - Control voltage generator for a clock, frequency reference, and other reference signal generator: Exemplary embodiments of the invention provide a reference signal generator, system and method. An exemplary apparatus to generate a harmonic reference signal includes a reference resonator, such as an LC-tank, a control voltage generator adapted to provide a temperature-dependent control voltage; and a plurality of variable reactance modules. The reference... Agent: Gamburd Law Group LLC

20090146720 - Pulse generator: A generator of synchronization pulses intended for at least two registers, including a first input intended to receive a clock signal and at least one output intended to deliver the pulses on the clock input of said registers, and at least one second input intended to receive a signal for... Agent: Stmicroelectronics Inc. C/o Wolf, Greenfield & Sacks, P.C.

20090146721 - Oob (out of band) detection circuit and serial ata system: The present invention provides an OOB detection circuit capable of making accurate signal determination even in the case where a characteristic fluctuation occurs in an analog circuit, thereby preventing deterioration in the yield of a product. To an amplitude determining circuit, a characteristic adjustment register for changing setting of an... Agent: Miles & Stockbridge PC

20090146722 - Systems and arrangements to provide input offset voltage compensation: In one embodiment a method is disclosed that includes applying a series of voltages to an input of an offset evaluation latch, detecting an offset voltage from the offset evaluation latch in response to the application of the series of voltages, and applying an offset compensation voltage to the input... Agent: Ibm Coporation (rtp) C/o Schubert Osterrieder & Nickelson PLLC

20090146723 - Buffer circuit: Disclosed is a buffer circuit including a source follower circuit comprising a MOS transistor which is driven by a current source. The MOS transistor has a gate to which an input voltage is supplied, a source from which an output voltage is output and a back gate supplied with a... Agent: Sughrue Mion, PLLC

20090146724 - Switching circuit for millimeter waveband control circuit: Provided is a switching circuit for a millimeter waveband control circuit. The switching circuit for a millimeter waveband control circuit includes a switching cell disposed on a signal port path to match an interested frequency and including at least one transistor coupled vertically to an input/output transmission line and a... Agent: Rabin & Berdo, PC

20090146725 - Temperature sensor circuit: Disclosed is a temperature sensor circuit including a bipolar differential pair driven by a constant current and having an emitter area ratio of 1:N (N>1) and two MOS transistors having the transistor size ratio of K:1 (K>1) connected as an active load to the bipolar differential pair. A reference voltage... Agent: Sughrue Mion, PLLC

20090146726 - Delay circuit with constant time delay independent of temperature variations: A delay circuit has: an inverting receiver with a resistive element, the inverting receiver having an input node for receiving an input signal and an output node coupled to the resistive element; a capacitive element, coupled to the output node of the inverting receiver and the resistive element; a first... Agent: Jianq Chyun Intellectual Property Office

20090146727 - Voltage generating apparatus: A voltage generating apparatus including a current source, a first voltage source, a second voltage source, a first differential pair, a second differential pair, a voltage divider and a current mirror is provided. The voltage divider is used for reducing a voltage with a negative temperature coefficient, so as to... Agent: Jianq Chyun Intellectual Property Office

20090146728 - Generic voltage tolerant low power startup circuit and applications thereof: Circuits and systems including a startup circuit coupled to a reference source for providing startup current to the reference source wherein no transistor of the startup circuit experiences a stress condition and wherein the startup circuit consumes no static current following stabilized, steady-state operation of the reference source.... Agent: Duft Bornsen & Fishman LLP

20090146730 - Bandgap reference circuit: A bandgap reference circuit generating bandgap reference voltage/current. The bandgap reference circuit generates a negative temperature coefficient current (ICTAT) and the first and the second positive temperature coefficient currents (IPTAT and INL), and compensates the non-constant components of the current ICTAT by multiplying the currents ICTAT, IPTAT and INL by... Agent: Lowe Hauptman Ham & Berner, LLP

20090146729 - Constant voltage circuit, constant voltage supply system and constant voltage supply method: An input voltage signal VIN to be inputted to a gate terminal of a PMOS transistor M1 is converted to a voltage value which was level shifted at the source terminal by an inter-terminal voltage between the gate and source of the PMOS transistor M1. This conversion is carried out... Agent: Arent Fox LLP

20090146732 - Constant current source circuit: The present invention discloses a constant current source circuit with energy saving and over voltage protection to provide a constant current source circuit with less elements, simple circuitry, energy saving and over voltage protection. The present invention includes a regulating circuit (1), a filtering capacitor (2) and a load (3),... Agent: Kamrath & Associates P.A.

20090146731 - Reference voltage generating circuit and power supply device using the same: A disclosed reference voltage generating circuit for generating a reference voltage includes MOSFETs connected in series or in parallel. At least one of the MOSFETs includes a control gate and a floating gate that is made hole-rich or discharged by ultraviolet irradiation, and the reference voltage generating circuit is configured... Agent: Cooper & Dunham, LLP

20090146733 - Semiconductor integrated circuit: A semiconductor integrated circuit provided with: a transistor M7 with a control terminal supplied with a second voltage GND, a first terminal connected to a third node N3, and second terminal connected to a fourth node N4 for introducing current according to the potential at a second voltage supply node... Agent: Studebaker & Brackett PC

20090146734 - Charge recycling (cr) in power gated complementary metal-oxide-semiconductor (cmos) circuits and in super cutoff cmos (sccmos) circuits: In one embodiment, a circuit includes a first circuit block connected to ground via a first sleep transistor, a first virtual ground node between the first circuit block and the first sleep transistor, a second circuit block connected to ground via a second sleep transistor, a second virtual ground node... Agent: Baker Botts L.L.P.

20090146735 - Switched capacitor resonator and sigma-delta modulator using the same: Provided is a switched capacitor resonator including at least one integrator circuit having a differential operational amplifier and a sub feedback circuit configured with a switched capacitor circuit. A main feedback circuit connecting main input and output terminals of the switched capacitor resonator to each other may be configured with... Agent: Lowe Hauptman Ham & Berner, LLP

20090140773 - Phase detection apparatus and phase synchronization apparatus: A feedback circuit includes a third variable delay device that controls the amount of phase delay of a first clock; a third logic gate that detects a phase difference between the first clock delayed by the third variable delay device and the first clock, and outputs a third signal of... Agent: Staas & Halsey LLP

20090140774 - System and method for communicating data among chained circuits: A system and method are provided for communicating data among chained circuits. In operation, a period of a signal communicated between a chain of circuits is identified. Additionally, a state of the signal is determined, based on the period of the signal.... Agent: Zilka-kotab, PC

20090140775 - Multiplexing circuit: A multiplexing circuit comprising an converter for converting an input voltage signal to an input current signal. A plurality of first current mirrors for mirroring the input current signal. A switching unit selectively switches each first current mirror to a corresponding output.... Agent: Wolf Greenfield & Sacks, P.C.

20090140776 - Voltage-current converter and voltage controlled oscillator: An exemplary aspect of an embodiment of the present invention is a voltage-current converter converting an input voltage input to an input terminal to a current to output the current, the voltage-current converter including a first current generating circuit including an input transistor having a gate connected to the input... Agent: Mcginn Intellectual Property Law Group, PLLC

20090140778 - Differential drive circuit and communication device: A differential drive circuit includes at least a first or second drive system. The first drive system has first and second field effect transistors, first and second resistors, and first and second circuits controlling the source voltages of the first and second field effect transistors to equal first and second... Agent: Oblon, Spivak, Mcclelland Maier & Neustadt, P.C.

20090140777 - Differential transistor pair current switch supplied by a low voltage vcc: The invention relates to current switches using a differential pair of transistors and being able to operate under a low supply voltage Vcc. According to the invention, provision is made for the current switch to include two differential pairs of two transistors each (T1, T1b; T2, T2b), cascaded together, the... Agent: Lowe Hauptman & Berner, LLP

20090140779 - Method and apparatus for driving capacitive load, and lcd: A potential supplied from a capacitive load drive unit to one end of a respective capacitive load is switched to an intermediate potential between a first and a second power supply potentials for a predetermined period of time prior to switching the potential of the one end of the capacitive... Agent: Rohm Co., Ltd. C/o Keating & Bennett, LLP

20090140780 - Driving device and driving method of capacitive load and liquid jet printing apparatus: A driving device of a capacitive load includes a modulator that executes pulse modulation on a drive waveform signal. An inductor performs low-pass filtering on the modulated drive waveform signal and outputs the low-pass filtered signal as a drive signal towards a load capacitor as the capacitive load. A load... Agent: Workman Nydegger 1000 Eagle Gate Tower

20090140781 - Circuit for data synchronization of i2c time controller in display device and method thereof: A method of controlling an interface between an I2C master in a time controller for a liquid crystal display and an external memory may include causing a pre-scaler to determine whether or not a first clock signal from the I2C master to the external memory is synchronized with a second... Agent: Sherr & Vaughn, PLLC

20090140782 - Spread spectrum clock generating apparatus: A spread spectrum clock generating apparatus is disclosed. The spread spectrum clock generating apparatus includes a phase lock loop module and a spread spectrum module. The phase lock loop module is used for dynamically tuning frequency of an output clock. The spread spectrum module includes a counter, a plurality of... Agent: Jianq Chyun Intellectual Property Office

20090140783 - Semiconductor device: Disclosed is a semiconductor device having a delay adjusting circuit including a delay line having N stages of differential delay circuits and N stages of differential interpolators. A differential interpolator of an Mth (where M<N holds) stage receives an output signal of a differential delay circuit of the Mth stage... Agent: Sughrue Mion, PLLC

20090140784 - High-speed pulse shaping filter systems and methods: A first system and method relates to an analog current-mode method using branch systems. In the analog current-mode implementation, multiple branches systems can be scaled according to filter coefficients and switched using known data points. Positive coefficients can add current to the summing node, while negative coefficients can remove current... Agent: Troutman Sanders LLP Bank Of America Plaza

20090140785 - Duty detector and duty cycle corrector including the same: A duty detector includes a clock converter, a hold pulse generator, a first logic operator, and an up/down counter. The clock converter receives a clock signal to generate an up clock signal and a down clock signal having phases opposite to each other. The hold pulse generator generates a hold... Agent: Harness, Dickey & Pierce, P.L.C

20090140786 - Pulse width modulation circuit and switching amplifier using the same: A pulse width modulation circuit includes a first electric-charge accumulator; a second electric-charge accumulator; a first current generator which generates a first current corresponding to the amplitude of an input AC voltage; a second current generator which generates a second current with a constant value; a first current supply controller... Agent: Mark D. Saralino (general) Renner, Otto, Boisselle & Sklar, LLP

20090140787 - Phase controller apparatus and pulse pattern generator and error detector using the phase controller apparatus: A quadrature modulator divides a first signal input as a local signal into an I channel signal and a Q channel signal orthogonal to each other and outputs a second signal having a desired phase delay corresponding to direct current voltages as for the first signal by giving the direct... Agent: Frishauf, Holtz, Goodman & Chick, PC

20090140788 - Semiconductor integrated circuit: A semiconductor integrated circuit has a plurality of clock tree cells arranged in a tree structure on clock signal lines transmitting a clock signal, the plurality of clock tree cells forming a clock tree. The clock tree cells include first power supply lines connected to the clock tree cells, second... Agent: Oblon, Spivak, Mcclelland Maier & Neustadt, P.C.

20090140789 - Calibration strategy for reduced intermodulation distortion: The present disclosure relates to a circuit and method for reducing intermodulation distortion in a non-linear device having a differential output stage. A calibration circuit is provided for adding a calibration offset voltage to at least one of one output branch of the differential output stage and a bulk terminal... Agent: Seed Intellectual Property Law Group PLLC

20090140790 - Electronic device with compound audio interface and power adapter: An exemplary electronic device includes a power module having an anode and a cathode; an audio module having a first audio signal terminal, a second audio signal terminal and a ground terminal; and an audio socket having a first audio signal terminal, a second audio signal terminal connected to the... Agent: PCe Industry, Inc. Att. Steven Reiss

20090140791 - Switching element control: An apparatus in an example comprises a switching element and diode-resistor coupling. The diode-resistor coupling controls timing characteristics of turn ON and turn OFF of the switching element.... Agent: Hewlett Packard Company

20090140792 - Temperature compensation circuit: A temperature compensation circuit according to an embodiment of the present invention includes a bias circuit configured to output a bias current, the bias current having a current value increasing in proportion to absolute temperature, in a low temperature region in which a temperature is lower than a predetermined temperature,... Agent: Amin, Turocy & Calvin, LLP

20090140793 - Internal voltage generation circuit of semiconductor memory device: An internal voltage generation circuit of a semiconductor memory device controls a dead zone voltage, in which the driving unit that supplies a power supply voltage, does not need to operate. An internal voltage having a dead zone is determined by first and second driving signals based on a level... Agent: Ladas & Parry LLP

20090140794 - Constant-current charge pump: The present invention discloses a constant-current charge pump, wherein a current detection circuit and a regulation circuit are arranged in the output of a pump circuit and used to control the current output by the pump circuit. When the load varies, the current variation is detected, and the regulation circuit... Agent: Joe Mckinney Muncy

20090140795 - High-dynamic range low ripple voltage multiplier: A voltage multiplier (10) including a first clocked multiplier stage (12) having an input and an output and a second clocked multiplier stage (14, 16) having an input and an output is provided. The voltage multiplier further includes an input level regulator (18) coupled to the input of the first... Agent: Freescale Semiconductor, Inc. Law Department

20090140797 - Rapidly activated current mirror system: One embodiment of the invention includes a current mirror system. The system comprises a master circuit configured to conduct a first current in response to an activation state of an activation signal. The system also comprises a slave circuit configured to generate at least one second additional current in response... Agent: Texas Instruments Incorporated

20090140796 - Slew rate control in output driver: A slew rate control circuit in output driver of switching circuit to prevent power ground undershoot is introduced. The gate capacitance of lower power transistor is first fast discharged to ensure the operation of the output signal. The gate capacitance of lower power transistor is then slowly discharged to limit... Agent: Greenblum & Bernstein, P.L.C

20090140798 - Semiconductor device including reference voltage generation circuit attaining reduced current consumption during stand-by: During operation, a control signal attains H level, a conventional type first reference voltage generation circuit is activated, and the first reference voltage generation circuit generates a reference voltage. During stand-by, the control signal attains L level, and the first reference voltage generation circuit is inactivated, whereby a through current... Agent: Mcdermott Will & Emery LLP

20090140799 - Integrated rc filter: An integrated RC filter includes a first resistor that is coupled to a first capacitor through a first node, a signal input of the integrated RC filter being coupled through one of the first resistor and the first capacitor to the first node. To allow for an increase in the... Agent: Robert M. Mcdermott, Esq.

20090140800 - Integrated circuit with signal bus formed by cell abutment of logic cells: An integrated circuit with a signal bus formed by the cell abutment of logic cells. The integrated circuit comprises at least two logic cells. The signal bus is formed by cell abutment of the at least two logic cells. The signal bus is configured to receive a signal and to... Agent: Eaton Peabody Patent Group, LLC

20090140801 - Locally gated graphene nanostructures and methods of making and using: A locally gated graphene nanostructure is described, along with methods of making and using the same. A graphene layer can include first and second terminal regions separated by a substantially single layer gated graphene nanoconstriction. A local first gate region can be separated from the graphene nanoconstriction by a first... Agent: Schwegman, Lundberg & Woessner, P.A.