Oscillators inventions 01/08

20080024230 - Low noise phase locked loop with a high precision lock detector: A phase lock loop (PLL) includes a voltage controlled oscillator (VCO) for providing a VCO output signal. A first phase/frequency detector (PFD) for providing a first voltage tuning signal is included for controlling a frequency of the VCO output signal by comparing a first reference signal to the VCO output... Agent: Ratnerprestia

20080024232 - Circuit and method to measure threshold voltage distributions in sram devices: A circuit for inline testing of memory devices which provides information on the variation of the threshold voltage. The circuit includes an array of ring oscillators with a series of inverters, which already exist in the memory device. A control logic systematically steps through all of the ring oscillators by... Agent: Downs Rachlin Martin PLLC

20080024235 - Digital frequency jittering apparatus with random data generator and method thereof: A digital frequency jittering circuit for varying a switching frequency of a power supply is disclosed. The digital frequency jittering circuit includes a random data generator, an analog to digital functional module, and a digital to analog functional module. The random data generator has an oscillator for generating an oscillating... Agent: North America Intellectual Property Corporation

20080024231 - Ultra wideband and fast hopping frequency synthesizer for mb-ofdm wireless application: A frequency synthesizer with a single PLL and multiple SSB mixers is presented. The frequency synthesizer includes a single PLL outputting a reference signal that is fed to a plurality of dividers coupled in sequence. The outputs from the dividers are mixed by the SSB mixers to produce signals with... Agent: Wang Law Firm, Inc.

20080024233 - High frequency ring oscillator with feed-forward paths: An inverting circuit comprises a first inverter in a main path having a first input and a common ouput. A second inverter receives the first input and is coupled with a first voltage controlled pass gate to the common output. A third inverter couples a second input to the common... Agent: Ibm Corp (wsm) C/o Winstead Sechrest & Minick P.C.

20080024234 - Inductive proximity switch and method for its operation: The present invention relates to an inductive proximity switch with an oscillator having a resonant circuit and an amplifier and with an evaluating and control device for evaluating an impedance of the resonant circuit and for outputting a switching signal. According to the invention, the proximity switch is characterized in... Agent: Hoffman Warnick & D'alessandro, LLC

20080024236 - Apparatus and method for producing electromagnetic oscillations: A device for providing electromagnetic oscillations in the sub-millimeter range comprising one or more electron beam generators for providing a first and a second electron beam and one or more magnetic field generators for focusing the first and second electron beams. The device may comprise an oscillator comprising a slow... Agent: D. Joseph English

20080024237 - Oscillator: An oscillator comprising a compensation circuit, an oscillating module and a controller are disclosed. The compensation circuit comprises a charging circuit and a discharging circuit. The charging circuit comprises a first current source coupled between a voltage source and a second transistor, and the second transistor having a second first... Agent: Birch Stewart Kolasch & Birch

20080024239 - Coil-less overtone crystal oscillator: An overtone crystal oscillator including a crystal, multiple amplifiers and an RC network. The crystal has a fundamental resonance frequency and at least one overtone resonance frequency. The amplifiers are coupled in series between terminals of the crystal and the RC network is coupled to the amplifiers. The amplifiers and... Agent: The Law Offices Of Gary R. Stanford

20080024238 - Noise removal circuit: A noise removal circuit. The noise removal circuit comprises a crystal oscillator and a level decision module. The crystal oscillator generates an oscillating signal and an output clock signal. The level decision module detects the signal level of the oscillating signal and outputs the output clock signal when the signal... Agent: Thomas, Kayden, Horstemeyer & Risley, LLP

20080018410 - Voltage controlled oscillator: The present invention provides a voltage controlled oscillator capable of obtaining an oscillation signal having a relatively low frequency with a simple circuit configuration without using AGC means and a semiconductor internal resistor. The voltage controlled oscillator includes a switching circuit which inputs therein a frequency control voltage and its... Agent: Trexler, Bushnell, Giangiorgi, Blackstone & Marr, Ltd.

20080018407 - Monolithic clock generator and timing/frequency reference: In various embodiments, the invention provides a clock generator and/or a timing and frequency reference, with multiple operating modes, such power conservation, clock, reference, and pulsed modes. The various apparatus embodiments include a resonator adapted to provide a first signal having a resonant frequency; an amplifier; a temperature compensator adapted... Agent: Gamburd Law Group LLC

20080018408 - Interleaved voltage controlled oscillator: An interleaved voltage-controlled oscillator (VCO) is disclosed. The VCO includes a ring circuit comprising a series connection of main logic inverter gates, a plurality of delay elements connected in parallel with a selected sequence of the main logic inverter gates, at least one temperature compensation circuit comprising a logic inverter... Agent: Cantor Colburn LLP - IBM Austin

20080018409 - Highly stable piezoelectric oscillator, manufacturing method thereof, piezoelectric resonator storage case, and heat source unit: A piezoelectric resonator storage case, includes a piezoelectric resonator stored therein, and a resonator container for storing a metal case. Here, the piezoelectric resonator includes: a piezoelectric resonator body having the metal case and a piezoelectric resonator element which is sealed in the metal case in an air tight manner;... Agent: Oliff & Berridge, PLC

20080018406 - Methods and systems to provide a plurality of signals having respective different phases: A system for generating multiple synthesized clocks having an input terminal for receiving a reference signal, a phase locked loop circuit coupled to the input signal terminal, where the phase locked loop circuit is capable of generating a plurality of output signals that are frequency locked to the reference signal... Agent: Sterne, Kessler, Goldstein & Fox P.l.l.c.

20080018411 - Fast vco band selection by frequency to voltage converter: The invention comprises a phase locked loop that has an input adapted to receive a reference frequency. A phase detector is connected directly to the input, a charge pump is connected directly to the phase detector, and a loop filter is connected directly to the charge pump. Also, a voltage... Agent: Frederick W. Gibb, Iii Gibb & Rahman, LLC

20080012646 - Semiconductor memory apparatus having phase locked loop: A semiconductor memory apparatus includes a PLL selector that selectively activates a plurality of PLL enable signals by decoding pluralities of PLL selection signals, and a plurality of PLL circuits that connect to a plurality of PLL enable signals respectively, wherein when the one of a plurality of PLL enable... Agent: Venable LLP

20080012647 - All-digital phase-locked loop for a digital pulse-width modulator: A digital audio system including a digital phase-locked-loop circuit for generating a pulse-width-modulation (PWM) clock signal, applied to a pulse-code-modulation to pulse-width-modulation converter, is disclosed. The digital phase-locked loop includes a phase detector for measuring phase error between a reference signal and a feedback signal. A digital version of the... Agent: Texas Instruments Incorporated

20080012651 - Semiconductor integrated circuit device and test method therefor: During testing frequency divider PS, test control voltage signal TC and RF test signal TS are supplied via balun Ti to input terminals IN1 and IN2. Test control voltage signal TC flows through resistors R1, R2 to turn on NPN transistor Q0. A current from current source I1 then ceases... Agent: Sughrue Mion, PLLC

20080012652 - Variable frequency multi-phase oscillator: A variable frequency multi-phase oscillator for providing multi-phase signals is disclosed. The variable frequency multi-phase oscillator includes a correlator, a plurality of delay cells, and a NOR circuit. Each delay cell includes a current supply, a capacitor, a comparator, a switch, and a logic unit. The plurality of delay cells... Agent: Wang Law Firm, Inc.

20080012653 - Programmable delay for clock phase error correction: A method, circuit, and system are disclosed. In one embodiment, the method comprises receiving a differential clock signal from two clock signal lines into a first differential pair of transistors of a first size, receiving the differential clock signal from the two clock signal lines into a second differential pair... Agent: Intel Corporation C/o Intellevate, LLC

20080012648 - Communications system with variable load and related method: A mobile system has a frequency synthesizer and an amplifier module coupled to the frequency synthesizer. The frequency synthesizer is controlled by frequency division data to generate a tuning signal with a frequency corresponding to a reference signal and the frequency division data. The mobile system provides an input signal... Agent: North America Intellectual Property Corporation

20080012649 - Semiconductor integrated circuit with pll circuit: In a PLL circuit including an oscillator, a phase comparator, a charge pump circuit, and a loop filter, without providing a plurality of capacitative elements, that is, without increasing the occupied area so much, the characteristics of the PLL circuit can be adjusted according to manufacture variations in a resistive... Agent: Mattingly, Stanger, Malur & Brundidge, P.C.

20080012650 - Semiconductor integrated circuit with pll circuit: In a PLL circuit including an oscillator, a phase comparator, a charge pump circuit, and a loop filter, without providing a plurality of capacitative elements, that is, without increasing the occupied area so much, the characteristics of the PLL circuit can be adjusted according to manufacture variations in a resistive... Agent: Mattingly, Stanger, Malur & Brundidge, P.C.

20080012654 - Linearized variable-capacitance module and lc resonance circuit using the same: Provided are a linearized variable-capacitance module for a voltage-controlled oscillator (VCO) and an LC resonance circuit using the same. The VCO is a circuit for outputting a certain frequency in response to an input control signal (voltage or current). The VCO includes an inductor, a variable capacitor (or a varactor),... Agent: Ladas & Parry LLP

20080012655 - Apparatus and method of temperature compensating an ovenized oscillator: An oscillator having improved frequency stability which includes an oscillator circuit and an SC-cut resonator connected with the oscillator circuit. The SC-cut resonator has a first turning point. A temperature compensation circuit is connected with the oscillator circuit. The temperature compensation circuit is adapted to adjust a reference frequency generated... Agent: Daniel J. Deneufbourg Cts Corporation

20080007345 - Adjustment of pll bandwidth for jitter control using feedback circuitry: Jitter method and control circuit for a circuit block in a transceiver system having a phase lock loop circuit which includes an oscillator, a charge pump connected to the oscillator to add or subtract charge to or from said oscillator, and a low pass filter connected to said charge pump... Agent: Driggs, Hogg & Fry Co. L.p.a.

20080007347 - Generating bias input in a charge pump: A charge pump that generates a bias input to affect an output voltage of the charge pump is described herein. The charge pump may include a charge pump stage, a replica charge pump stage, and a self-biased differential amplifier. In some instances, the charge pump may be incorporated into a... Agent: Schwabe, Williamson & Wyatt, P.C.

20080007349 - Internal voltage generator and semiconductor memory device having the same, and method of generating internal voltage: An internal voltage generator according to the present invention includes an oscillator, a cycle control unit and a voltage generator. The oscillator periodically generates a pulse-shaped oscillation signal. The cycle control unit bypasses the oscillation signal to an output node, or selectively controls the cycle of the oscillation signal and... Agent: Lowe Hauptman Ham & Berner, LLP

20080007348 - Method for designing phase-lock loop circuits: A method for designing a phase-lock loop (PLL) circuit is disclosed. The method includes the following steps. A first set of intellectual properties, each of which represents a control circuit implemented on a semiconductor substrate, is provided. A second set of intellectual properties, each of which represents a filter implemented... Agent: L. Howard Chen, Esq. Kirkpatrick & Lockhart Preston Gates Ellis LLP

20080007350 - Oscillator circuit: An oscillator circuit having a relatively simple circuit structure while enabling full swing with low power consumption includes an oscillation core block, a voltage restriction block, and a differential output block. Drain terminals of first and second transistors are each connected to the voltage restriction block. The voltage restriction block... Agent: Freescale Semiconductor, Inc. Law Department

20080007346 - Two-point modulation polar transmitter architecture and method for performance enhancement: A polar transmitter includes a two-point modulation phase-locked loop (PLL) for producing an RF signal with a wide bandwidth. The PLL includes a first input for receiving a phase signal of a variable-envelope modulated signal and providing the phase signal along a first signal path to produce a first frequency... Agent: Garlick Harrison & Markison

20080007351 - Voltage-controlled oscillator: A voltage-controlled oscillator (VCO) includes: an oscillation unit, for generating an oscillation signal according to a biasing current; a current mirror, for providing the biasing current, the current mirror comprising: at least one first transistor, coupled between a first voltage level and a current source; at least one second transistor,... Agent: Birch Stewart Kolasch & Birch

20080007367 - Voltage controlled oscillator with compensation for power supply variation in phase-locked loop: A voltage-controlled oscillator (VCO) according to an aspect of the present invention includes an oscillation unit and a delay time control unit. The oscillation unit generates an oscillation signal with a frequency determined by a VCO control signal. The delay time control unit adjusts a delay of the oscillation signal... Agent: Law Office Of Monica H Choi

20080007354 - Determining thermal absorption using ring oscillator: A device and method for determining a thermal absorption of a part of an integrated circuit (IC) are provided. A specially designed ring oscillator including an un-silicided poly-silicon resistor is used for the determination. The parameters of the ring oscillator are designed/tuned so that a delay of the ring oscillator... Agent: Hoffman, Warnick & D'alessandro LLC

20080007352 - Current-controlled oscillator: Widening the frequency range without increasing the power consumption. Current circuits output charge current based on control current. Capacitors are provided in association with the current circuits and store the charge current. Discharge transistors are provided in association with the capacitors and cause the capacitors to discharge electric charge. On-off... Agent: Arent Fox LLP

20080007353 - Frequency synthesizer: Disclosed is a frequency synthesizer capable of preventing occurrence of a frequency shift upon occurrence of a change in the level of an input to an A/D converter by preventing PLL control from being properly operated. The frequency synthesizer includes a carrier remove, an inverse rotational vector multiplier, a phase... Agent: Jacobson Holman PLLC

20080007355 - Cr oscillation circuit and electronic device: It is preferable to increase the selection scope of oscillation frequency adjustment means. In a CR oscillation circuit, a first oscillation capacitor and a second oscillation capacitor are arranged in parallel so that a capacity value of the entire CR oscillation circuit can be selected. A plurality of resistors including... Agent: Cantor Colburn, LLP

20080007356 - Method and apparatus for digital synthesis of microwaves: Conductor segments are positioned within a two conductor transmission line in order to generate microwave pulses. The conductor segments are switchably coupled to one or the other of the transmission lines in parallel. Microwave pulses may be induced in the transmission line by closing the switches in a controlled manner... Agent: Bingham Mccutchen LLP

20080007357 - High frequency stabilization network for microwave devices and monolithic integrated circuits: A high-frequency stabilization network for microwave devices and monolithic integrated circuits. The stabilization network may comprise one or more monolithic RL parallel networks, configured to reduce in-band high-frequency oscillation, such as Gunn effect oscillation and IMPATT oscillation.... Agent: Jackson Walker LLP

20080007358 - Rf stimulus used to synchronize a clock network: CMOS LC tank circuits and flux linkage between inductors can be used to distribute and propagate clock signals over the surface of a VLSI chip or μprocessor. A structure is placed close to the surface of the IC. This structure contains circuitry to generate RF signals. These signals can originate... Agent: Thaddeus Gabara

20080007359 - Time delay oscillator for integrated circuits: One aspect relates to an oscillator, and various oscillator embodiments comprise an amplifier and line driver with an input and an output and a transmission line with a predetermined transmission signal time delay. The output is adapted to produce an inverted signal with respect to a signal received at the... Agent: Attn: Marvin L. Beekman Schwegman, Lundberg, Woessner & Kluth, P.A.

20080007360 - Angular rate sensor: An angular rate sensor includes a tuning-fork oscillator, a support portion, an oscillation absorption portion and a mounting portion. The tuning-fork oscillator has a base and arm portions extending from the base. The support portion supports the base of the tuning-fork oscillator at a front face thereof. The oscillation absorption... Agent: Arent Fox LLP

20080007361 - Oscillator with voltage drop generator: An oscillator, comprising an LC tank circuit and a negative resistance circuit. The negative resistance circuit is coupled to the LC tank circuit and comprises a pair of transistors and a pair of voltage drop generators. The transistors have first terminals and second terminals, wherein the first terminals are cross-coupled... Agent: Thomas, Kayden, Horstemeyer & Risley, LLP

20080007362 - Temperature measurement system having a plurality of microelectromechanical resonators and method of operating same: There are many inventions described and illustrated herein. In one aspect, the present inventions relate to a temperature measurement system comprising (1) a first microelectromechanical resonator to generate a first output signal having a frequency that varies with operating temperature, wherein the first microelectromechanical resonator includes a frequency function of... Agent: Patterson & Sheridan, L.L.P.

20080007363 - Function generation circuit: A first order function generation circuit receives a signal from a temperature sensor circuit, and generates a fist order function control signal V1 that is affected by the ambient temperature. A fourth order and fifth order approximation function generation circuit receives signals from the temperature sensor circuit and from the... Agent: Mcdermott Will & Emery LLP

20080007364 - Voltage controlled oscillator: A voltage controlled oscillator (VCO) conducts current on two paths through parallel inductors and parallel cross-coupled metal-oxide-semiconductor transistors. A pair of varactors are connected in series on a third path extending from a node between one inductor and one transistor to a node between the other inductor and the other... Agent: Rabin & Berdo, PC

20080007365 - Continuous gain compensation and fast band selection in a multi-standard, multi-frequency synthesizer: A frequency synthesizer capable of high speed, low power, wideband operation including a method of gain compensation, and a method of fast voltage controlled oscillator (VCO) band calibration. In addition, the frequency synthesizer may include two or more switchable independent loop filters to facilitate wideband operation. Such a frequency synthesizer... Agent: Lowrie, Lando & Anastasi

20080007366 - Oscillator and method for generating an oscillator signal: An oscillator includes a first resonator circuit, a second resonator circuit coupled to the first resonator circuit and a reconfigurable network having a transconductance and coupled to at least one of the resonator circuits. Reconfiguration of the reconfigurable network with respect to the transconductance allows selection of one of multiple... Agent: Eschweiler & Associates, LLC National City Bank Building