Miscellaneous active electrical nonlinear devices, circuits, and systems inventions 11/08

20080290903 - Method and radiation hardened phase frequency detector for implementing enhanced radiation immunity performance: A method and radiation hardened phase frequency detector (PFD) are provided for implementing enhanced radiation immunity performance. The radiation hardened phase frequency detector (PFD) includes a plurality of functional blocks. Each functional block includes duplicated components providing duplicated inputs, internal nodes and outputs. The duplicated components are arranged so that... Agent: Ibm Corporation RochesterIPLaw Dept 917

20080290904 - Frequency monitor: A method and system for monitoring a frequency of a clock signal is disclosed. The method and system comprise dividing a clock signal into a plurality of clock signal components. The method and system further comprise adding a delay to each of the clock signal components and comparing the plurality... Agent: Schwegman, Lundberg & Woessner / Atmel

20080290905 - Peak or zero current comparator: The present invention relates to a simple and small-sized circuit configuration (10) for significantly reducing resettling time of a peak or zero current comparator. This circuit configuration (10) provides the comparator input stage with an alternative current path at the comparator input submitted to a large voltage variation able to... Agent: Nxp, B.v. Nxp Intellectual Property Department

20080290906 - Constant-current driving circuit: A constant-current driving circuit includes a first current source, a reference voltage generating circuit and an output signal generating circuit. A terminal of the first current source is coupled to a terminal of a first LED string, wherein the terminal of the first current source has a first voltage. The... Agent: Jianq Chyun Intellectual Property Office

20080290907 - Threshold control circuitry for multiple current signal receivers: Calibration circuitry and method for maintaining constant signal detection thresholds for multiple signal receivers that receive data signals in the form of current signals. A value of one of the incoming current signals having a predetermined signal pattern is detected and used to generate threshold control signals for each of... Agent: National Semiconductor Corporation C/o Vedder Price Kaufman & Kammholz

20080290910 - Method and apparatus for a voltage triggered current sink circuit: A current sink circuit is disclosed. An apparatus according to aspects of the present invention includes a sensing element, a pass element coupled to the sensing element and a setting element coupled to the pass element. The setting element provides both a voltage threshold level and a current regulation reference.... Agent: Blakely Sokoloff Taylor & Zafman LLP

20080290909 - Source driver in liquid crystal display device, output buffer included in the source driver, and method of operating the output buffer: Provided is an output buffer, which may be included in a source driver of a liquid crystal display (LCD) device. The output buffer may include a differential amplification unit and an output unit. The differential amplification unit may generate control currents by amplifying the difference between the voltages of an... Agent: Harness, Dickey & Pierce, P.L.C

20080290908 - Variable power write driver circuit: A storage system (e.g., a magnetic disk system or a magnetic tape system) employing a write head, a write controller and a write driver circuit. In operation, the write head records data on a magnetic media (e.g., a magnetic tape or a magnetic disk) based on a flow of a... Agent: Hamilton & Terrile, LLP IBM Tucson

20080290911 - Mosfet gate drive with reduced power loss: A gate driver for a power MOSFET in, for example, a DC-DC converter switches the MOSFET between a fully-on condition and a low-current condition instead of switching the MOSFET between fully-on and fully-off conditions. The amount of charge that must be transferred to charge and discharge the gate of the... Agent: Patentability Associates

20080290912 - Analog pseudo random bit sequence generator: A Pseudo Random Bit Sequence (PRBS) generator is provided with components to enable operation at very high microwave frequencies with inexpensive components. The PRBS generator initially replaces the D flip-flops of a conventional PRBS generator with delay lines connected in a similar manner. Further, an exclusive OR (EXOR) gate used... Agent: Fliesler Meyer LLP

20080290913 - Clock signal switching device, clock signal switching method, data bus switching device, and data bus switching method: A clock signal switching device includes: a plurality of signal synchronization generation means for generating mask signals and synchronized switching signals; a plurality of clock signal mask means for generating masked clock signals; a synchronized switching signal selection means for selecting one from among the synchronized switching signals; and a... Agent: Mcdermott Will & Emery LLP

20080290914 - Self-clearing asynchronous interrupt edge detect latching register: A digital circuit may have at least two asynchronous clock domains with a controller responsive to a first domain clock signal and a target responsive to a second domain clock signal. A first domain control signal pulse is generated in response to the first domain clock signal for controlling the... Agent: Texas Instruments Incorporated

20080290915 - System and method for fast re-locking of a phase locked loop circuit: A system and method for reducing the re-lock time of a phase locked loop (PLL) system, the system including a circuit having a capture control voltage module, a force control voltage module, a loop filter module, and a timer. The capture control voltage module compares the control voltage (voltage input... Agent: Seed Intellectual Property Law Group PLLC

20080290916 - System clock generation circuit: A system clock signal generator circuit comprising a first PLL circuit that is frequency and phase locked to a wobble signal; a frequency and phase comparator for comprising a first output signal from the first PLL circuit with a system clock signal as frequency divided by M and for outputting... Agent: Cantor Colburn, LLP

20080290917 - Multi-band frequency generation method and apparatus: A frequency generation unit (FGU) 100 includes a plurality of selectable voltage controlled oscillators (110) whose output frequencies are chosen in relationship with a predetermined intermediate frequency (IF) and frequency divider value (M) to provide multi-band frequency generation capability in a single communication device. A programmable reference divider (104), phase... Agent: Motorola, Inc

20080290918 - Dll circuit of semiconductor memory apparatus and method of delaying and locking clock in semiconductor memory apparatus: A DLL circuit of a semiconductor memory apparatus includes a frequency sensing unit that generates and outputs a high frequency signal and a low frequency signal on the basis of a CAS latency signal. A clock dividing unit divides the frequency of an internal clock by a predetermined value and... Agent: Venable LLP

20080290919 - Clock generator for semiconductor memory apparatus: The clock generator for semiconductor memory apparatus which includes: a first divider configured to divide a frequency of a first internal clock generated by using an external clock; a first delay unit configured to delay an output of the first divider by first delay time; a second divider configured to... Agent: Venable LLP

20080290920 - Duty cycle correction circuit and method thereof: A duty cycle correction circuit comprises a frequency divider, a duty cycle detector and a delay circuit. The frequency divider receives a first clock signal and divides the frequency of the first clock signal to generate a second clock signal. The duty cycle detector receives the second clock signal and... Agent: Quintero Law Office, PC

20080290921 - Level converting flip-flop and method of operating the same: A level converting flip-flop may include a data input circuit, a clocking circuit, a current mirror circuit, and/or a latch circuit. The data input circuit may be configured to generate a pull-up current in response to an input data signal having one of an input supply voltage smaller than an... Agent: Harness, Dickey & Pierce, P.L.C

20080290922 - Delay circuit: A delay circuit respectively delays rising and falling edges of an input signal. The delay circuit comprises first and second delay lines, a control circuit, and first and second logic circuits. The first delay line delays the first input signal the first delay time to output the first delay output... Agent: Quintero Law Office, PC

20080290924 - Method and apparatus for programmable delay having fine delay resolution: An programmable delay apparatus includes a first delay stage having a delay cell which includes a passive network, where the first delay stage is capable of providing a first time delay. The apparatus further includes a second delay stage which includes a plurality of delay cells, where each delay cell... Agent: Qualcomm Incorporated

20080290923 - Systems and methods for providing delayed signals: A variable delay apparatus comprises a calibrating unit receiving a signal from a variable delay unit and from a plurality of fixed delay sources, the calibrating unit comparing the signal from the variable delay unit with a plurality of signals from the fixed delay sources to control operation of the... Agent: Dla Piper US LLP

20080290925 - Clock generator: A multiphase clock with high resolution is generated. A first clock generator circuit (120) includes n level converters BUFs that conduct level conversion on two input signals, and generate a pair of pulse signals that switch the levels with reference to a crossing point at which the two signal are... Agent: Mcginn Intellectual Property Law Group, PLLC

20080290926 - Mass coupling at clocked hf-elements: A circuit for a fill-level measuring device is for the fast switching-on of a high-frequency element on a ground port is disclosed. The circuit comprises a switching unit with a circuit mass; a high-frequency element with a high-frequency mass; and a coupling element that couples the two masses together and... Agent: Fay Kaplun & Marcin, LLP

20080290927 - Half-bridge circuits employing normally on switches and methods of preventing unintended current flow therein: A method for rendering a half-bridge circuit containing normally on switches such as junction field effect transistors (JFETS) inherently safe from uncontrolled current flow is described. The switches can be made from silicon carbide or from silicon. The methods described herein allow for the use of better performing normally on... Agent: Morris Manning Martin LLP

20080290928 - Switching circuit: A switching circuit is disclosed. The switching circuit is provided with first and second signal terminals, a control terminal, first and second resisters, and a field-effect transistor having a drain, a source, a gate and a back-gate. One end of the first resister is connected with the control terminal. The... Agent: Amin, Turocy & Calvin, LLP

20080290929 - Proximity detection system and method: Proximity detection is accomplished by determining with a moving average calculation a moving average level of input data; setting a threshold level in response to the average level and a sensitivity factor; producing a proximity detection output when the input data meets the threshold level; and changing the weighting used... Agent: Iandiorio Teska & Coleman Intellectual Property Law Attorneys

20080290931 - Charge pump systems and methods: Digital multilevel memory systems and methods include a charge pump for generating regulated high voltages for various memory operations. The charge pump may include a plurality of pump stages. Aspects of exemplary systems may include charge pumps that performs orderly charging and discharging at low voltage operation conditions. Additional aspects... Agent: Dla Piper US LLP

20080290930 - 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

20080290932 - Semiconductor integrated circuit device: A semiconductor integrated circuit device with reduced consumption current is provided. A first step-down circuit stationarily forms internal voltage lower than supply voltage supplied through an external terminal. A second step-down circuit is switched between first mode and second mode according to control signals. In first mode, the internal voltage... Agent: Antonelli, Terry, Stout & Kraus, LLP

20080290933 - Method and circuit for an efficient and scalable constant current source for an electronic display: The present invention uses two transistors instead of a sensing resistor to provide a constant current source for a load such as an array of light emitting diodes (“LEDs”). In the present invention, a bias current is applied to a branch of the circuit. The drain-to-source voltages of two transistors... Agent: Howrey LLP-ca

20080290934 - Reference buffer circuits: A reference buffer circuit is disclosed, providing a reference voltage at an output node and comprising a closed-loop branch comprising an amplifier and first and second MOS transistors and an open-loop branch comprising third and fourth MOS transistors and a tracking circuit. The first MOS transistor has a gate coupled... Agent: Thomas, Kayden, Horstemeyer & Risley, LLP

20080290935 - Apparatus and method for preventing current leakage when a low voltage domain is powered down: An apparatus and method are provided for preventing a current leakage or direct current when a low voltage domain is powered down. Included is a voltage transition circuit connected between a low voltage domain and a high voltage domain. Such voltage transition circuit includes a circuit component for preventing a... Agent: Zilka-kotab, PC

20080290936 - Nanocrystal-metal oxide complex and method for preparing the same: Disclosed herein is a nanocrystal-metal oxide complex. The nanocrystal of the nanocrystal-metal oxide complex is substituted with two or more different types of surfactants which are miscible with a metal oxide precursor and enable maintenance of luminescent and electrical properties of the nanocrystal. The nanocrystal-metal oxide complex exhibits superior optical... Agent: Cantor Colburn, LLP

20080284470 - Direct digital synthesizer and nuclear magnetic resonance instrument using the same: A DDS (direct digital synthesizer) remarkably increased in the number of frequencies which can be output while maintaining the phase coherency, and an NMR instrument using such a DDS are provided. A DDS including phase accumulators and a phase-to-amplitude modulator is provided with a plurality of phase accumulators operating with... Agent: Antonelli, Terry, Stout & Kraus, LLP

20080284471 - Current load driving circuit: A current load driving circuit for driving a current load, including: a first current mirror circuit that outputs a current; and a second current mirror circuit that receives the current outputted from the first current mirror circuit as an input current and then amplifies the input current to drive the... Agent: Oliff & Berridge, PLC

20080284472 - Apparatus for adjusting bandwidth and central frequency of oscillating signal generated from chaotic signal and method for generating signal thereof: A communication apparatus and a method for generating a signal thereof are provided. The communication apparatus adjusts a bandwidth or central frequency of an oscillating signal which is generated from a chaotic signal to be used in the modulation, or adjusts both the bandwidth and the central frequency. Accordingly, it... Agent: Sughrue Mion, PLLC

20080284473 - Phase synchronous circuit: An external clock round-trips a round-trip delay block configured by a selector and a short delay array, and is made capable of corresponding to a wide frequency by generating a long delay time required for synchronization at the time of a low frequency operation. Further, when a plurality of phase... Agent: Miles & Stockbridge PC

20080284474 - Techniques for integrated circuit clock management: A clock generator (622) includes a first circuit (812) and a second circuit (814). The first circuit (812) includes a first clock input configured to receive a first clock signal at a first frequency, a second clock input configured to receive a second clock signal at the first frequency, and... Agent: Larson Newman Abel Polansky & White, LLP

20080284475 - Semiconductor device having delay locked loop and method for driving the same: A delay locked loop includes: a control voltage generator configured to generate a voltage control signal having a voltage level corresponding to a phase difference between an external clock and a feedback clock; a voltage controlled delay line configured to generate a plurality of output signals by reflecting a different... Agent: Mcdermott Will & Emery LLP

20080284476 - Techniques for integrated circuit clock management using pulse skipping: A processor (400) includes a clock source (402), a central processing unit (CPU) (408), and a clock generator (404). The clock source (402) includes an output for providing a periodic clock signal. The CPU (408) includes an input for receiving a CPU clock signal. The clock generator (404) includes a... Agent: Larson Newman Abel Polansky & White, LLP

20080284477 - On-chip jitter measurement circuit: An on-chip jitter measurement circuit and corresponding method are provided for receiving a reference clock and a signal of interest, including a latch for comparing the arrival time of the signal of interest to the reference clock, a delay chain in signal communication with the reference clock for varying the... Agent: F. Chau & Associates, LLC

20080284478 - Duty correction circuit of digital type for optimal layout area and current consumption: The present invention relates to a duty correction circuit that corrects a distorted duty of a clock signal using a delay unit and a delay controller, thereby reducing the layout area and current consumption. The duty correction circuit includes a repeater that generates a clock signal having the same phase... Agent: Ladas & Parry LLP

20080284479 - Method of forming a pwm controller and structure therefor: In one embodiment, a PWM controller is configured to form a drive signal that has an operating frequency that varies around a center by a percentage of the center frequency.... Agent: Mr. Jerry Chruma, Semiconductor Components Industries, L.L.C.

20080284480 - Scan flip-flop with internal latency for scan input: A scan flip-flop circuit including a data input, a scan input, a data output, a flip-flop, a multiplexer and a delay element is provided. The multiplexer allows selection of either the scan input or the data input for presentation at the input of the flip-flop. The flip-flop provides an output... Agent: Advanced Micro Devices, Inc. C/o Vedder Price P.C.

20080284481 - Cross-point latch and method of operating the same: Provided is a cross-point latch and a method of operating the cross-point latch. The cross-point latch includes a signal line, two control lines crossing the signal line, and unipolar switches disposed at crossing points between the signal line and the control lines.... Agent: Harness, Dickey & Pierce, P.L.C

20080284482 - Semiconductor circuit: A semiconductor circuit for an inverter device, comprising a pulse generator for generating a pulse signal upon receiving the input signal for controlling the high-voltage switching device of the inverter device, a driver circuit for driving the high-voltage switching device, and a signal transfer circuit for transferring the pulse signal... Agent: Antonelli, Terry, Stout & Kraus, LLP

20080284483 - Clock distribution circuit and test method: A clock distribution circuit having plural stages of buffers disposed along branch paths for dividing up a clock signal and configured in a manner that outputs of a plurality of buffers in a final stage and/or a middle stage are short-circuited, includes in relation to at least one buffer of... Agent: Mcginn Intellectual Property Law Group, PLLC

20080284484 - Clock switch for generation of multi-frequency clock signal: An improved clock switch in an integrated circuit chip that multiplexes two asynchronous clock signals to generate a multi-frequency clock signal in a manner that avoids glitches on the clock output line and meta-stable states within the switch. The clock switch does not include a cross-coupled feedback loop, thus rendering... Agent: Fiala & Weaver, P.l.l.c. C/o Intellevate

20080284486 - Internal voltage generator of semiconductor device and method for generating internal voltage: An internal voltage generator of a semiconductor device consumes relatively small amount of driving current and generates a stable internal voltage with relatively small voltage level variation. The semiconductor device includes an oscillator configured to generate an oscillation signal in response to an input signal, wherein the oscillation signal oscillates... Agent: Blakely Sokoloff Taylor & Zafman LLP

20080284485 - Method for determining a switch-on threshold and electronic circuit arrangement for carrying out the method: An electronic circuit arrangement is disclosed for converting an input voltage signal having a first voltage level into an output signal having a second voltage level. An input unit is provided for inputting the input voltage signal at the first voltage level, while an output unit is arranged for outputting... Agent: Buchanan, Ingersoll & Rooney PC

20080284487 - Passive mixer and high q rf filter using a passive mixer: A passive mixer include a switching architecture configured to generate differential in-phase (I) and differential quadrature-phase (Q) signals using differential components of the in-phase (I) and quadrature-phase (Q) signals operating on transitions of an approximate 25% duty cycle signal.... Agent: Michael J. Tempel Smith Frohwein Tempel

20080284488 - Mixer circuit: A subharmonic mixer circuit having an input stage (52) and a current modulating stage (64) is disclosed. The input stage (52) receives an RF input signal (RF+, RF−) at a first frequency and generates output currents (i1, i2) varying in dependence upon the Rf input signal. The current modulating stage... Agent: Nxp, B.v. Nxp Intellectual Property Department

20080284489 - Transconductor and mixer with high linearity: A transconductor. The transconductor comprises first and second active device networks. The first active device network has a first node and a second node and comprises a first MOS transistor having a gate, a source coupled to the first node, and a drain coupled to the second node. The second... Agent: Thomas, Kayden, Horstemeyer & Risley, LLP

20080284490 - Compensated operational amplifier and active rc filter including such an amplifier: A method of compensating a monolithic integrated operational amplifier against process and temperature variations, such that the operational amplifier is suitable for use in an active filter, the method comprising a providing an amplifier having a first stage and an output stage, wherein the output stage drives an RC load,... Agent: Fish & Richardson PC

20080284491 - Integrated circuit, electronic device and integrated circuit control method: An integrated circuit (10) comprises a plurality of functional blocks (101, 102, 103), each of the functional blocks (101, 102, 103) being coupled between a first power supply line (110) and a second power supply line (120). A first functional block (101) is coupled to the first power supply line... Agent: Nxp, B.v. Nxp Intellectual Property Department

20080284492 - Voltage switch circuit of semiconductor device: Disclosed is a voltage switch circuit of a semiconductor device. The subject voltage switch circuit can be used to apply voltage to a semiconductor memory device control circuit. The voltage switch circuit according to an embodiment includes five transistors and a capacitor. An output terminal of the subject circuit outputs... Agent: Saliwanchik Lloyd & Saliwanchik A Professional Association

20080284493 - Proportional to absolute temperature current generation circuit having higher temperature coefficient, display device including the same, and method thereof: A proportional to absolute temperature (PTAT) current generation circuit may include a current mirror unit and/or a level control unit. The current mirror unit may be connected between a first power supply voltage, a first node, and/or a second node. The level control unit may be connected between the first... Agent: Harness, Dickey & Pierce, P.L.C

20080284494 - Fuse device, method for writing data, method for reading data, and method for writing and reading data: A fuse device includes a plurality of serially connected fuse elements whose number is n (n is an integer of two or more), a power source connected to one end of a first fuse element that is a top of the n serially connected fuse elements, and a plurality of... Agent: Amin, Turocy & Calvin, LLP

20080284495 - Mos capacitor with large constant value: A capacitor circuit includes a first capacitor having a positive terminal coupled to a first node and a negative terminal coupled to a second node, a second capacitor having a negative terminal coupled to the first node and a positive terminal coupled to the second node, a third capacitor having... Agent: Madson & Austin

20080284496 - Internal voltage generation circuit for semiconductor device and method for generating internal voltage therein: An internal voltage generation circuit of a semiconductor device includes: a voltage detecting unit configured to detect a voltage level of an internal voltage output terminal to output a voltage detection signal; an oscillating unit configured to generate a first oscillation signal having a predefined frequency in response to the... Agent: Rabin & Berdo, PC

20080284499 - N-stage exponential charge pumps, charging stage thereof and methods of operation thereof: An exponential charge pump uses a number of identical or similar charging stages, each having a first and second capacitor. During a first clock phase, the first capacitor of each stage is charged by the second capacitor of the preceding stage, and, during a complementary second clock phase, the positive... Agent: Schwabe, Williamson & Wyatt, P.C. Pacwest Center, Suite 1900

20080284498 - Type of charge pump apparatus and power source circuit: This invention discloses charge pump apparati, where a charge pump apparatus, including a positive charge pump circuit and a negative charge pump circuit, providing multiple positive and negative voltages, comprises: a capacitor set shared by said positive charge pump circuit and said negative charge pump circuit; multiple electronic switches connected... Agent: Venture Pacific Law, PC

20080284497 - Voltage generator that prevents latch-up: A voltage generator that prevents latch-up includes: a charge pump circuit that is controlled by first through third enable signals, boosts an internal power voltage generated from an external power voltage, and generates first through fourth voltages; a detector that detects the first through third voltages and generates first through... Agent: F. Chau & Associates, LLC

20080284500 - Load-drive controller: In a load-drive controller, a first comparing unit compares a load current supplied from an H bridge circuit and a desired setting current; a PWM control unit generates a control signal to control the load current; a gate driver drives and controls output transistors of the H bridge circuit based... Agent: Ratnerprestia

20080284501 - Reference bias circuit for compensating for process variation: A reference bias circuit is provided. The reference bias circuit includes a voltage detector, an operational amplifier, a compensation circuit, and a reference current generator. The voltage detector detects a first input voltage and a second input voltage of the operational amplifier based on a voltage of a first node... Agent: Marger Johnson & Mccollom, P.C.

20080284502 - Current biasing circuit: A current biasing circuit is provided, which is designed to suppress reference current drift caused by temperature variation with a low overall temperature coefficient of a constant-voltage circuit and at least one resistor. The constant-voltage circuit comprises a diode and/or a diode-connected transistor. This current biasing circuit is based on... Agent: Jianq Chyun Intellectual Property Office

20080284503 - Charge pump start up circuit and method thereof: The present invention discloses a charge pump start up circuit comprising: a start up transistor having one end which is electrically connected with a voltage supply source, and another end which is electrically connected to a voltage node; and a charge pump circuit having an input which is electrically connected... Agent: Tung & Associates

20080284504 - Semiconductor integrated circuit: This device has a first circuit including a first field effect transistor and a second circuit coupled to a source of the first electric field transistor. The second circuit applies a first source bias voltage, which does not reversely bias between a source and a body of the first field... Agent: Volentine & Whitt PLLC

20080284505 - Filter circuit for wireless applications and noise reduction method: An object of the present invention is to provide a filter circuit which improves NF of a Gm-C filter. The filter circuit comprises a filter comprising at least one first operational transconductance amplifier whose mutual conductance varies depending on a first control signal and a first capacitor, a second operational... Agent: Sughrue Mion, PLLC

20080284506 - System and method for controlling an electromagnetic field generator: A system for driving an electromagnetic field generator. In one aspect, the system may include a plurality of transistors arranged in an H-bridge configuration, the H-bridge having first and second output terminals, first and second switching inputs, and a power input. The system may further include a control transistor coupling... Agent: Milbank, Tweed, Hadley & Mccloy

20080278200 - Current weighted voltage interpolation buffer: A voltage interpolation buffer for interpolating voltages by adjusting ratio of bias currents includes a first difference voltage to current unit for outputting corresponding difference current according to a first voltage, a first bias current and voltage of a voltage output end, a second difference voltage to current unit for... Agent: North America Intellectual Property Corporation

20080278201 - Buffering circuit of semiconductor device: A buffering circuit of a semiconductor device includes: a first buffer configured to receive a first power voltage and a second power voltage as driving power voltages to buffer an input signal; a power supplier configured to adjust supply amounts of the first and second power voltages in response to... Agent: Blakely Sokoloff Taylor & Zafman LLP

20080278202 - Capacitive load driving device: An improved capacitive load driving device that provides increased signal voltage gain, over-voltage, over-current, and over-temperature protections, over-modulation prevention, output level control, minimized harmonic generation, and compensation for propagation medium distortion. The device includes driver/amplifier circuitry, protection circuitry, and an output stage. The driver/amplifier circuitry simultaneously modulates and discretizes an... Agent: Weingarten, Schurgin, Gagnebin & Lebovici LLP

20080278203 - Systems and methods for providing a clock signal: Systems and methods for providing a clock signal are provided. A frequency multiplier circuit is provided that can include a plurality of serially connected delay elements that are configured to generate a plurality of delay tap signals from an input signal. The frequency multiplier circuit can also include a phase... Agent: Lowrie, Lando & Anastasi, LLP

20080278204 - Injection-locked frequency divider embedded an active inductor: An injection-locked frequency divider is provided. The present invention includes an active inductor unit, a source injection unit, a first transistor and a second transistor. A first terminal of the active inductor unit is coupled to a first voltage. A first terminal of the source injection unit receives a signal... Agent: Jianq Chyun Intellectual Property Office

20080278206 - Dll circuit: A DLL circuit can enable a semiconductor integrated circuit to perform a stable data processing operation. The DLL circuit includes a phase splitter that controls the phase of a delay clock, thereby generating a rising clock and a falling clock, an amplifying unit that performs differential amplification on the rising... Agent: Baker & Mckenzie LLP Patent Department

20080278205 - Programmable clock control architecture for at-speed testing: According to one exemplary embodiment, an N-stage programmable clock control architecture includes N flip-flops, where the N flip-flops are clocked by a primary clock source, such as a PLL. The N-stage programmable clock control architecture further includes means for programming the N flip-flops such that the N-stage programmable clock control... Agent: Farjami & Farjami LLP

20080278208 - Data output circuit of semiconductor memory apparatus: A data output circuit includes a data output clock signal generating unit that generates a rising data output clock signal and a rising latch signal from a rising clock signal in response to a falling latch signal, and generates a falling data output clock signal and the falling latch signal... Agent: Baker & Mckenzie LLP Patent Department

20080278207 - Fall time accelerator circuit: Embodiments of the invention address deficiencies of the art in respect to digital signal transmissions and provide a novel and non-obvious fall time accelerator circuit for use in a USB interface. In one embodiment of the invention, the USB interface can include a USB port driver coupled to a host... Agent: Carey, Rodriguez, Greenberg & Paul, LLP Steven M. Greenberg

20080278209 - Method of pulse width modulation signal processing and device including signal processing for pulse width modulation: A method and system process a signal for PWM modulation. An amplitude control signal adjusts the amplitude of an input signal, and an offset is added to the amplitude-adjusted signal to produce an offset-adjusted signal. The offset is selected according to the amplitude adjustment applied to the input signal. The... Agent: Volentine & Whitt PLLC

20080278210 - System for glitch-free delay updates of a standard cell-based programmable delay: A method for glitch-free updates of a standard cell-based programmable delay including the steps of (A) generating an output signal in response to an input signal and a plurality of first control signals and (B) generating the plurality of first control signals in response to the output signal and a... Agent: Christopher P Maiorana, PC Lsi Corporation

20080278211 - Use of multiple voltage controlled delay lines for precise alignment and duty cycle control of the data output of a ddr memory device: A DLL circuit uses a rising edge DLL to align the rising edge of the output data to the system clock and a falling edge DLL to align the falling edge of the output data. The DLL circuit does not use the falling edge of the input clock to provide... Agent: Hogan & Hartson LLP

20080278212 - Dc offset canceling circuit: The present invention provides a circuit for canceling DC offset, comprising: a first circuit accumulating a first square value of a plurality of signal values in a time period; a second circuit calculation a second square value of an accumulation of said signal values in said time period, wherein said... Agent: Rosenberg, Klein & Lee

20080278213 - High ohmic integrated resistor with improved linearity: An integrated circuit that includes a resistor module with improved linearity is disclosed. The resistor module includes a diffused resistor body of a first conductivity type; a first terminal and a second terminal, each making direct electrical contact with the diffused resistor body; a doped well of a second conductivity... Agent: Ostrolenk Faber Gerb & Soffen

20080278214 - Method for removing noise, switching circuit for performing the same and display device having the switching circuit: A method for removing noise of a gate signal that is outputted from a gate driving circuit including a plurality of stages, the method includes electrically connecting two terminals of two adjacent stages that have noise components opposite in phase to each other during a first period, and electrically disconnecting... Agent: Macpherson Kwok Chen & Heid LLP

20080278215 - Semiconductor device: A semiconductor device according to the present invention is a semiconductor device for driving and controlling a power device in the high-potential side of two power devices connected in series between a main power source potential of a high potential and a main power source potential of a low potential,... Agent: Oblon, Spivak, Mcclelland Maier & Neustadt, P.C.

20080278216 - Modular switching arrangement: The present invention relates to a switching arrangement and method of manufacturing such an arrangement, wherein first and second series-shunt diode structures (D1/D2, D3/D4) are connected to each other in a mirrored configuration to obtain a basic switching cell. This basic switching cell can be used to build a SPDT... Agent: Nxp, B.v. Nxp Intellectual Property Department

20080278217 - Protection for circuit boards: A system comprising a circuit board and an integrated circuit device mounted on the circuit board by means of an external contact, and comprising an anti-tamper device being connectable to the external contact to switch the integrated circuit device into a safe mode upon application of a predetermined electrical state... Agent: Dicke, Billig & Czaja

20080278218 - Operator interface assembly including a hall effect element and machine using same: A machine having an operator interface for requesting an action from an actuator of the machine includes a movable component of the operator interface. The movable component is movable among at least two positions. One of a magnet and a Hall effect sensor is positioned to move in response to... Agent: Caterpillar C/o Liell, Mcneil & Harper

20080278219 - Bias switching circuit: An embodiment of a bias switching circuit may include a first transfer switch that transmits a bias voltage to a first output node in response to a first switching signal, a second transfer switch that transmits a first power voltage to the first output node in response to a second... Agent: Marger Johnson & Mccollom, P.C.

20080278220 - High-linearity low noise amplifier and method: Embodiments of a high-linearity low-noise amplifier (LNA) and method are generally described herein. Other embodiments may be described and claimed. In some embodiments, an RF input signal may be amplified with a cascode amplifier and a common-gate stage. The common-gate stage is dynamically biased based on an output voltage of... Agent: Schwegman, Lundberg & Woessner, P.A.

20080278222 - Charge pump circuit: A latch-type charge pump circuit is provided having first and second charge pump stages interconnected by an intermediate circuit node. The charge pump circuit includes first pump capacitors respectively coupled between first and second enable terminals and respective first inner circuit nodes, second pump capacitors respectively coupled between the second... Agent: Fleit Gibbons Gutman Bongini & Bianco P.l.

20080278221 - Power distribution circuit for use in a portable telecommunications device: A power distribution circuit for use in a personal telecommunications device comprises a switched mode power supply configured to convert an input voltage and current from an energy source into an output voltage and current, a plurality of series-connected charge storage components arranged to be charged by the output voltage... Agent: Foley & Lardner LLP

20080278223 - Apparatus and method for controlling the propagation delay of a circuit by controlling the voltage applied to the circuit: The voltage applied to an integrated circuit is controlled by a temporal process monitor formed as part of the integrated circuit. The temporal process monitor includes a voltage controlled oscillator for producing a first output signal having a first period. A comparator compares the first period to one or more... Agent: Michael W. Caldwell

20080278224 - Apparatus and method for recovery of wasted power from differential drivers: An apparatus and method for supplying power to circuits of an integrated circuit (IC) from the wasted power in low-swing high-speed differential line drivers used in the IC, is disclosed. In a high speed line driver the load resistors of the driver are connected to a power supply, either the... Agent: Blakely Sokoloff Taylor & Zafman LLP

20080278225 - Method and apparatus for regulating power in a flyback converter: An integrated circuit includes an operational amplifier configured to receive a current sense voltage (VCS) at a first input and an offset voltage at a second input. A comparator is coupled to the operational amplifier and adapted to receive at a first input an output voltage signal (VOUT) of the... Agent: Schwegman, Lundberg & Woessner / Infineon

20080278226 - Method and apparatus for powering down analog integrated circuits: A method and an apparatus powers down an analog integrated circuit. A power down circuit is electrically coupled to the analog circuit and is adapted to power down the analog circuit in response to receiving a power down signal. A node protection circuit is electrically coupled to the analog circuit... Agent: Qualcomm Incorporated

20080278228 - Control device with a switchable bandwidth: A control device with a switchable bandwidth including: an integrating element with a first capacitance, which is charged and discharged by at least one current; at least one second capacitance, which can be connected in parallel with the first capacitance via a first switch; and at least one voltage follower,... Agent: Kathy Manke Avago Technologies Limited

20080278227 - Squelch detection system for high speed data links: An apparatus comprising a first comparator circuit, a second comparator circuit, a third comparator circuit, and a difference circuit. The first comparator circuit may be configured to generate a first intermediate current in response to a first input voltage and a second input voltage. The second comparator circuit may be... Agent: Christopher P Maiorana, PC Lsi Corporation

20080278229 - Active compensation filter: An active compensation filter for the application in the electric power supply in a land vehicle, which comprises a high-pass filter which is to be coupled with a supply voltage line which carries a supply voltage, in order to detect frequency and amplitude of interference voltage components of the supply... Agent: Tarolli, Sundheim, Covell & Tummino L.L.P.

20080272808 - Means to detect a missing pulse and reduce the associated pll phase bump: A phase/frequency locked loop (PLL) includes circuitry adapted to detect missing pulses of a reference clock and to control the phase bump of the PLL. The circuitry includes, in part, first and second flip-flops, as well as a one-shot block. The first flip-flop has a data input terminal responsive to... Agent: Townsend And Townsend And Crew, LLP

20080272809 - Integrated circuit power-on control and programmable comparator: An integrated circuit is provided with a main supply rail and a virtual supply rail connected by strong and weak header transistors. A power-on controller controls the switching on of the strong transistors after the virtual supply rail voltage has already been driven up to close to its operating level... Agent: Nixon & Vanderhye, PC

20080272810 - Filterless digital frequency locked loop: A frequency and/or phase locked loop architecture that eliminates the loop filter generally required in conventional phase locked loops, and which may be implemented in digital logic, for example, as a field programmable gate array. In one example, a frequency/phase locked loop includes both a frequency comparison component and a... Agent: Weingarten, Schurgin, Gagnebin & Lebovici LLP

20080272811 - Signal generating apparatus and method thereof: A signal generating apparatus is disclosed for generating a synthesized signal according to an input signal. The signal generating apparatus includes a phase-locked loop device for generating the synthesized signal; a detecting device for detecting a reference signal to generate a calibrating signal; a filtering device for filtering the input... Agent: North America Intellectual Property Corporation

20080272812 - Semiconductor memory device including delay-locked-loop control circuit and control method for effective current consumption management: A delay-locked-loop control circuit and a method of controlling a delay-locked-loop. When the delay-locked-loop is in an off-operation mode, such as a power-down mode, a self-refresh emulation mode, a self-refresh mode, and the like, the delay-locked-loop is updated with a predetermined period, thereby preventing a malfunction of the delay-locked-loop. The... Agent: Ladas & Parry LLP

20080272813 - Analog to digital converter clock synchronizer: The present application generally relates to apparatuses such as television signal processing apparatus that process radio frequency signals. More specifically, the present application is particularly useful in integrated circuits that must receive a radio frequency signal and simultaneously use circuitry where the timing of the operations are based on the... Agent: Joseph J. Laks Thomson Licensing LLC

20080272815 - Duty cycle correction circuits including a transition generator circuit for generating transitions in a duty cycle corrected signal responsive to an input signal and a delayed version of the input signal and methods of operating the same: A duty cycle correction circuit is operated by maintaining a state of a duty cycle corrected signal, generating a first transition in the state of the duty cycle corrected signal responsive to an input signal, and generating a second transition in the state of the duty cycle corrected signal responsive... Agent: Myers Bigel Sibley & Sajovec

20080272814 - Parallel multiplexing duty cycle adjustment circuit with programmable range control: A receive interface circuit includes a duty cycle adjustment circuit that adjusts the duty cycle of a reference clock signal based, at least in part, on a selected number of duty cycle adjustment units and a selected range of duty cycle adjustment. The duty cycle adjustment circuit may select as... Agent: Zagorin O'brien Graham LLP

20080272816 - Inverter with four-transistor schmitt trigger: A four-transistor Schmitt trigger inverter is provided. The Schmitt trigger inverter is made from an n-channel MOS (NMOS) dual-gate thin-film transistor (DG-TFT) and a p-channel MOS (PMOS) DG-TFT, both DG-TFTs having a top gate, a back gate, and source/drain regions. A (conventional) NMOS TFT has a gate connected to an... Agent: Sharp Laboratories Of America, Inc. C/o Law Office Of Gerald Maliszewski

20080272817 - Integrated circuit on a semiconductor chip with a phase shift circuit and a method for digital phase shifting: The present invention relates to an integrated circuit on a semiconductor chip with at least one phase shift circuit (56), at least one data input terminal (70) and at least one clock input terminal (38; 68), wherein the phase shift circuit (56) comprises at least two delay chains (10; 20)... Agent: Ibm Microelectronics Intellectual Property Law

20080272818 - Voltage-controlled oscillator generating output signal finely tunable in wide frequency range and variable delay circuits included therein: A voltage-controlled oscillator includes a plurality of variable delay circuits, wherein a first differential output signal of an adjacent previous stage is provided as a first differential input signal and a second differential output signal of a second previous stage is provided as a second differential input signal. Each variable... Agent: Cantor Colburn, LLP

20080272819 - Clock receivers: A clock receiver is provided. A receiving unit receives a pair of complementary clocks and generates a first clock, and a calibration unit detects whether a cross point of the complementary clocks has shifted, generates a detected result and accordingly adjusts toggling of the first clock.... Agent: Quintero Law Office, PC

20080272820 - Circuit to reduce transient current swings during mode transitions of high frequency/high power chips: A method, an apparatus, and a computer program are provided to reduce transient current swings during mode transitions. Traditionally, transient supply voltage fluctuations on a chip account for a large portion of the power supply. The number of series inductances and resistances are typically minimized, while adding large decoupling capacitances... Agent: Ibm Corp. (wip) C/o Walder Intellectual Property Law, P.C.

20080272821 - Signal converting circuit: A signal conversion circuit 2 comprises a differential amplifier portion 10 and a source follower portion 20. When differential voltage signals INp and INn are input to a first input terminal 5 and second input terminal 6 respectively, operations occurs either in a mode in which only the differential amplifier... Agent: Sughrue Mion, PLLC

20080272822 - Electronic device for controlling actuators: a conduction re-activate circuit (2) common to the control stages, limiting the voltage on the pad of the various stages to a common level and applying a conduction activate signal to the control electrode of a switch when the enabling signal is generated. The device can be used in particular... Agent: Young & Thompson

20080272823 - Jfet passgate circuit and method of operation: A passgate circuit comprises a first depletion mode n-channel JFET, a depletion mode p-channel JFET, and a second depletion mode n-channel JFET. The first depletion mode n-channel JFET has a first terminal coupled to an input port, a second terminal that receives a first control signal, and a third terminal.... Agent: Baker Botts L.L.P.

20080272824 - Cmos rf switch for high-performance radio systems: A wireless device includes high-performance CMOS RF switches that include serially connected transistors coupled between an input terminal and an output terminal, with an inductor coupled from the input to the output that resonates out the capacitance of the transistors to improve isolation. The transistors have a floating/bootstrapped body with... Agent: Intel Corporation C/o Intellevate, LLC

20080272825 - Selection circuit: A selection circuit includes a first switching unit that selects and outputs a first signal from among a plurality of analog signals input thereto; a second switching unit that outputs a second signal from a reference voltage supplied therein; and an amplifier that adds the first signal and the second... Agent: Arent Fox LLP

20080272826 - Interrupt/wake-up of an electronic device in a low power sleep mode when detecting a sensor or frequency source activated frequency change: Activation of an external sensor coupled to an electronic device will change the frequency of a low power oscillator in the electronic device that runs during a low power sleep mode of the electronic device. When a change in frequency of the low power oscillator is detected, the electronic device... Agent: Baker Botts L.L.P. Attn: Paul N. Katz

20080272827 - Interrupt/wake-up of an electronic device in a low power sleep mode when detecting a sensor or frequency source activated frequency change: Activation of an external sensor coupled to an electronic device will change the frequency of a low power oscillator in the electronic device that runs during a low power sleep mode of the electronic device. When a change in frequency of the low power oscillator is detected, the electronic device... Agent: Baker Botts, LLP

20080272828 - Method and system for adaptive power management: A system comprises an integrated circuit comprising one or more transistors that receive a supply voltage. The system also includes a reference transistor operable to receive a constant current and produce a reference voltage that varies according to temperature or process variations, wherein the reference transistor behaves similarly to at... Agent: Baker Botts L.L.P.

20080272829 - Semiconductor device including multilayer wiring board with power supply circuit: In one embodiment of the present invention, a semiconductor device includes a multilayer wiring board, a DC power supply circuit and a semiconductor integrated circuit chip. The multilayer wiring board has the semiconductor integrated circuit chip embedded therein. The DC power supply circuit is provided on the multilayer wiring board.... Agent: Young & Thompson

20080272830 - Variable power and response time brown-out-reset circuit: A brown-out-reset circuit having programmable power and response time characteristics. These characteristics may be programmed over an n-bit wide bus for 2n different characteristics ranging from very low power consumption and slower response time to very fast response time and higher power consumption. A serial one wire bus may be... Agent: Baker Botts L.L.P., One Shell Plaza

20080272833 - Charge pump: A charge pump for generating an input voltage for an operational amplifier includes a storage capacitor for storing a charge pump voltage and a flying capacitor configured to be charged during a first phase of operation and discharged during a second phase of operation. Discharging the flying capacitor charges the... Agent: Texas Instruments Incorporated

20080272832 - Charge pump circuit and method of controlling the same: A charge pump circuit and related method are provided. The charge pump circuit includes first, second and third voltage generation units, first and second control units, and a latch-up prevention unit. The first generation unit regulates a first output signal, the second generation unit boosts a second output signal, and... Agent: Harness, Dickey & Pierce, P.L.C

20080272831 - Charge pump cmos circuit: A charge pump CMOS circuit comprises a differential input stage with two parallel circuit branches. Each of the parallel circuit branches has a diode-connected MOS transistor connected in series with a complementary input MOS transistor. There is a common tail current source for both circuit branches. The diode-connected MOS transistors... Agent: Texas Instruments Incorporated

20080272834 - Absolute multi-revolution encoder: Magnetic field detection elements (310) and (320) detect a magnetic material member (11) formed at a rotary disc (1). An A pulse generation portion (31) and a B pulse generation portion (32) generate an A pulse a and a B pulse b which phases differ by 90 degrees to each... Agent: Sughrue-265550

20080272835 - Interrupt/wake-up of an electronic device in a low power sleep mode when detecting a sensor or frequency source activated frequency change: Activation of an external sensor coupled to an electronic device will change the frequency of a low power oscillator in the electronic device that runs during a low power sleep mode of the electronic device. When a change in frequency of the low power oscillator is detected, the electronic device... Agent: Baker Botts L.L.P. One Shell Plaza

20080272836 - Interrupt/wake-up of an electronic device in a low power sleep mode when detecting a sensor or frequency source activated frequency change: Activation of an external sensor coupled to an electronic device will change the frequency of a low power oscillator in the electronic device that runs during a low power sleep mode of the electronic device. When a change in frequency of the low power oscillator is detected, the electronic device... Agent: Baker Botts L.L.P. One Shell Plaza

20080272837 - Method and apparatus for reducing interference: A method and apparatus is provided for reducing interference in circuits. A management strategy is provided to reduce reference spurs and interference in circuits. The management strategy uses a combination of one or more techniques which reduce the digital current, minimize mutual inductance, utilize field cancellation, prevent leakage current, and/or... Agent: Johnson & Associates

20080272838 - Self-calibration of continuous-time filters and systems comprising such filters: A continuous-time filter system comprises a master control unit and a slave unit with one or more slave filters. The master control unit includes an integrator having circuit elements which match those elements of the slave filter that define the slave filter's time constant. The master control unit further includes... Agent: Nxp, B.v. Nxp Intellectual Property Department

20080272839 - Operation amplifier and circuit for providing dynamic current thereof: An operation amplifier (op-amp) and a circuit for providing dynamic current thereof are disclosed. The circuit can be applied to any current op-amp. The circuit comprises two transistors which are simultaneously or non-simultaneously turned on as the input signals respectively received by the first input and the second input of... Agent: Jianq Chyun Intellectual Property Office