Oscillators inventions 10/08

20080258822 - Oscillator circuit and semiconductor device including the same: A stable frequency is outputted by an oscillator circuit including a constant current circuit which is electrically connected between a first terminal and a second terminal, a voltage controlled oscillator circuit in which an oscillation frequency fluctuates in accordance with a potential difference between power supply voltage terminals, an n-channel... Agent: Fish & Richardson P.C.

20080258823 - Self-compensating voltage-controlled oscillator: In one embodiment, a voltage-controlled oscillator (VCO) is provided that includes: a plurality of differential inverter stages coupled to form a loop, each differential inverter stage having including a switched capacitor circuit configured to control a signal delay through the differential inverter stage responsive to a control circuit, whereby an... Agent: Macpherson Kwok Chen & Heid LLP

20080258824 - Multi-speed ring oscillator: A ring oscillator comprises a control circuit for receiving a frequency-selection signal operative to select from at least two ring oscillator frequencies, said control circuit using said control signal to generate a first control signal and a second control signal; a primary chain of an odd number of serially connected... Agent: Henneman & Associates, PLC

20080258825 - Digital component deterministic pseudo random clock and noise source device based on a random frequency modulated oscillator: Random number generators are used for entertainment in gambling, lotteries and video gaming devices. True Random Number Generators, as are now currently defined, must be actuated by a physical noise source, typically based on the uncertainty of the phase differences of a stable and an unstable autonomous oscillator. In this... Agent: Paul D. Bianco Fleit Gibbons Gutman Bongini & Bianco Pl

20080258826 - Low voltage operational transconductance amplifier circuits: Circuits (FIG. 1) that operate with power supplies (VDD) of less than 1 Volt are present. More particularly, circuits (FIG. 1) that operate with supply voltages (VDD) near or lower than the threshold voltage of the transistors (M1A, M1B) in those circuits are presented. Various circuits and embodiments such as... Agent: Wilmerhale/columbia University

20080258828 - Colpitts oscillator: A Colpitts oscillator includes a tank circuit, a first transistor, and a first feedback circuit. The first transistor includes a first region, a second region, and a control region. The first region communicates with the tank circuit. The first feedback circuit communicates with the second region and the control region... Agent: Harness, Dickey & Pierce P.L.C

20080258827 - Radio frequency voltage controlled oscillators: A radio frequency voltage controlled oscillator and method for designing it are provided. The RF VCO comprises a differential oscillator and a cascoded current source. The cascoded current source substantially provides a constant current bias to the differential oscillator. A first biased transistor in the cascoded current source is connected... Agent: Thomas, Kayden, Horstemeyer & Risley, LLP

20080258830 - Ic for control of temperature-compensated crystal oscillator: A temperature-compensated crystal oscillator includes a mode selector circuit 100, a control logic serial•interface 200, a PROM circuit 300, an oscillation control circuit 400 and an oscillation circuit 500, and has, as terminals, a power terminal (VCC/CLK) 11, an input terminal (VC/DATA/PE) 12, an output terminal (OUT) 13 and a... Agent: Mcdermott Will & Emery LLP

20080258829 - Integrated quartz oscillator on an active electronic susbtrate: An oscillator having a quartz resonator, and a base wafer containing active electronics, wherein the quartz resonator is bonded directly to the base wafer and subsequently hermetically capped.... Agent: Ladas & Parry

20080258822 - Oscillator circuit and semiconductor device including the same: A stable frequency is outputted by an oscillator circuit including a constant current circuit which is electrically connected between a first terminal and a second terminal, a voltage controlled oscillator circuit in which an oscillation frequency fluctuates in accordance with a potential difference between power supply voltage terminals, an n-channel... Agent: Fish & Richardson P.C.

20080258823 - Self-compensating voltage-controlled oscillator: In one embodiment, a voltage-controlled oscillator (VCO) is provided that includes: a plurality of differential inverter stages coupled to form a loop, each differential inverter stage having including a switched capacitor circuit configured to control a signal delay through the differential inverter stage responsive to a control circuit, whereby an... Agent: Macpherson Kwok Chen & Heid LLP

20080258824 - Multi-speed ring oscillator: A ring oscillator comprises a control circuit for receiving a frequency-selection signal operative to select from at least two ring oscillator frequencies, said control circuit using said control signal to generate a first control signal and a second control signal; a primary chain of an odd number of serially connected... Agent: Henneman & Associates, PLC

20080258825 - Digital component deterministic pseudo random clock and noise source device based on a random frequency modulated oscillator: Random number generators are used for entertainment in gambling, lotteries and video gaming devices. True Random Number Generators, as are now currently defined, must be actuated by a physical noise source, typically based on the uncertainty of the phase differences of a stable and an unstable autonomous oscillator. In this... Agent: Paul D. Bianco Fleit Gibbons Gutman Bongini & Bianco Pl

20080258826 - Low voltage operational transconductance amplifier circuits: Circuits (FIG. 1) that operate with power supplies (VDD) of less than 1 Volt are present. More particularly, circuits (FIG. 1) that operate with supply voltages (VDD) near or lower than the threshold voltage of the transistors (M1A, M1B) in those circuits are presented. Various circuits and embodiments such as... Agent: Wilmerhale/columbia University

20080258828 - Colpitts oscillator: A Colpitts oscillator includes a tank circuit, a first transistor, and a first feedback circuit. The first transistor includes a first region, a second region, and a control region. The first region communicates with the tank circuit. The first feedback circuit communicates with the second region and the control region... Agent: Harness, Dickey & Pierce P.L.C

20080258827 - Radio frequency voltage controlled oscillators: A radio frequency voltage controlled oscillator and method for designing it are provided. The RF VCO comprises a differential oscillator and a cascoded current source. The cascoded current source substantially provides a constant current bias to the differential oscillator. A first biased transistor in the cascoded current source is connected... Agent: Thomas, Kayden, Horstemeyer & Risley, LLP

20080258830 - Ic for control of temperature-compensated crystal oscillator: A temperature-compensated crystal oscillator includes a mode selector circuit 100, a control logic serial•interface 200, a PROM circuit 300, an oscillation control circuit 400 and an oscillation circuit 500, and has, as terminals, a power terminal (VCC/CLK) 11, an input terminal (VC/DATA/PE) 12, an output terminal (OUT) 13 and a... Agent: Mcdermott Will & Emery LLP

20080258829 - Integrated quartz oscillator on an active electronic susbtrate: An oscillator having a quartz resonator, and a base wafer containing active electronics, wherein the quartz resonator is bonded directly to the base wafer and subsequently hermetically capped.... Agent: Ladas & Parry

20080252383 - Phase locked loop and method for compensating temperature thereof: Embodiments of a phase lock loop and a method for compensating a temperature thereof can output an initial tuning digital value for a voltage controlled oscillator configured to output a desired phase lock loop frequency compensated according to a temperature change. Embodiments of a phase lock loop and a method... Agent: Rene A. Vazquez Williams Mullen

20080252384 - Cost effective low noise single loop synthesizer: A low cost, low phase noise microwave synthesizer includes a DDS modulation circuit and a phase-locked loop. The DDS modulation circuit modulates the output of a DDS to a high frequency. The phase-locked loop downconverts the DDS output and locks the downconverted signal to a relatively low frequency, fixed reference.... Agent: Law Office Of Bruce D. Rubenstein

20080252385 - Highly sensitive force/mass detection method and device using phase synchronization circuit: There are provided a highly sensitive force/mass detection method and device using a phase-locked loop, in which a phase noise of the mechanical element can be reduced using the phase-locked loop, by synchronizing a vibration signal of a mechanical element to an oscillation signal from a local oscillator which has... Agent: Oblon, Spivak, Mcclelland Maier & Neustadt, P.C.

20080252387 - Oscillator: There is provided an oscillator having first and second oscillating units (301a, 301c) outputting signals having phases in a mutually orthogonal relationship, in which simultaneous connection of a plurality of current sources to the first and second oscillating units does not occur, and only one current source (303a) is connected... Agent: Arent Fox LLP

20080252386 - Quadrature-phase voltage controlled oscillator: A voltage controlled oscillator (VCO) is provided. The VCO may include a first ring oscillation circuit that may have a plurality of delay cells and may output first differential oscillation signals, and a second ring oscillation circuit that may have a plurality of delay cells and may output second differential... Agent: Harness, Dickey & Pierce, P.L.C

20080252388 - Oscillator and charge pump circuit using the same: The present invention provides a current-limited oscillator capable of performing stable operation even when it is driven with a low power-supply voltage, and a charge pump circuit using the oscillator. A current-limited oscillator has a delay section that includes a plurality of series-connected inverters to delay an output pulse on... Agent: Mcdermott Will & Emery LLP

20080252389 - Sine wave oscillator having a self-startup circuit: Disclosed herein is a sine wave oscillator. The sine wave oscillator includes an operational amplification unit, a first resistor, a first capacitor, a second capacitor, a second resistor, a third resistor, a fourth resistor, and a startup circuit. The first ends of the first resistor and the first capacitor are... Agent: Steptoe & Johnson LLP

20080252390 - Crystal oscillator circuit: A crystal oscillator circuit includes a capacitive load stage (C0, C1) coupled to a crystal; an amplifier stage including an amplifying transistor (M1) coupled to the crystal and to the capacitive load stage (C0, C1) for establishing an oscillation signal at the amplifier stage output (AMPOUT) and a bias generator... Agent: Texas Instruments Incorporated

20080252391 - Multi-phase interleaved oscillator: An oscillator for synchronizing and controlling a multi-phase, interleaved power supply system that has a plurality of power sources. The oscillator includes a first oscillator, having a pulse generator and a timing capacitor, and a second oscillator, having a pulse generator and timing capacitor, that are electrically coupled to one... Agent: Texas Instruments Incorporated

20080246546 - Phase-locked-loop circuit having a pre-calibration function and method of pre-calibrating the same: A phase-locked loop (PLL) integrated circuit includes an oscillation control voltage generating circuit therein. The oscillation control voltage generating circuit is configured to pre-scale an output current of a charge pump therein to a first level in response to disposing the PLL integrated circuit into a pre-calibration mode of operation.... Agent: Myers Bigel Sibley & Sajovec

20080246545 - Digital phase and frequency detector: Disclosed are a digital phase-frequency detector and a method of operating a digital phase-frequency detector. The detector includes an input circuit, an output circuit and a reset circuit. In use, the input circuit receives first and second input signals during a plurality of cycles, and during a given one of... Agent: Scully, Scott, Murphy & Presser, P.C.

20080246547 - Method and system for output matching of rf transistors: A high frequency power device (100) is described comprising a high frequency power transistor (102) having a first main electrode, a second main electrode acting as output electrode and a control electrode, and an output compensation circuit (104) for compensating parasitic output capacitance of the transistor (102). The output compensation... Agent: Nxp, B.v. Nxp Intellectual Property Department

20080246548 - Method and apparatus for generating oscillating signals: An apparatus for generating an oscillating signal that includes a circuit to accelerate the time in which an oscillating signal reaches a defined steady-state condition from a cold start. The apparatus includes an oscillating circuit to generate an oscillating signal; a first circuit to supply a first current to the... Agent: Qualcomm Incorporated

20080246549 - Real time clock integrated circuit and electronic apparatus using the same: A real time clock integrated circuit (RTC IC) and an electronic apparatus thereof are provided. In the RTC IC, only a low-power oscillator is used for generating a standard clock for a real time counter, and the standard clock with a frequency drift of the low-power oscillator is compensated through... Agent: Jianq Chyun Intellectual Property Office

20080238566 - High frequency oscillator circuit with feedback circuit of fet and short-stub transmission line: In a high frequency oscillator circuit including first and second field effect transistors, the first field effect transistor has a gate connected to a short-stub transmission line and a drain connected to an oscillation output terminal, and the second field effect transistor has a drain connected to a source of... Agent: Nixon & Vanderhye, PC

20080238555 - Systems, modules, chips, circuits and methods with delay trim value updates on power-up: Timing measurement is performed by a digital oscillator, using a calibration value which is calculated after chip fabrication is completed, and automatically loaded into selection logic at powerup.... Agent: Brinks Hofer Gilson & Lione/sandisk

20080238556 - Simple technique for reduction of gain in a voltage controlled oscillator: A ring oscillator circuit having an odd plurality of inverter stages (i.e., 2N+1 stages). In accordance with one embodiment of the present invention, only one of the inverter stages is operated in response to a variable input voltage, while the remaining inverter stages are operated in response to a highly... Agent: Bever, Hoffman & Harms, LLP

20080238557 - Tuning fork flexural crystal vibration device, crystal vibrator, and crystal oscillator: A tuning fork flexural crystal vibration device includes a base, two vibration arms, grooves, electrodes, and wirings. The base has a flat plate shape. The two vibration arms have flat panel shapes extending from a side surface of the base in the same direction. The grooves are provided for the... Agent: Blakely Sokoloff Taylor & Zafman LLP

20080238558 - Magnetrons: A magnetron having a cathode 1 and an anode 2 with vanes 3, has an insulating surface 4 in it which faces the cathode and receives material from it due to sputtering at the cathode. A conductor 7 enables the resistance of the film so deposited to be measured, giving... Agent: Venable LLP

20080238559 - Voltage controlled oscillator: A voltage controlled oscillator circuit comprises a variable current generator to supply an operation current to a voltage controlled oscillator, the voltage controlled oscillator to include a resonance circuit having a variable capacitor and inductor, and to output an output signal having an amplitude based on a current generated by... Agent: Mcginn Intellectual Property Law Group, PLLC

20080238560 - Voltage-controlled oscillator and method of operating the same: A voltage-controlled oscillator has: an LC resonant circuit including an inductor and a variable capacitor that are connected in parallel between a pair of output terminals; a plurality of negative resistance circuits provided between a power source and the LC resonant circuit; a plurality of capacitor groups; a first switch... Agent: Mcginn Intellectual Property Law Group, PLLC

20080238561 - Piezoelectric oscillator: For a piezoelectric oscillator according to the present invention, an oscillator circuit includes: a piezoelectric vibrator; an NMOS transistor and a PMOS transistor that constitute an amplifier connected in parallel to the piezoelectric vibrator; and load capacitors connected in parallel to the piezoelectric vibrator. The gate terminals of the NMOS... Agent: Mcdermott Will & Emery LLP

20080238563 - Apparatus and method for measurement of temperature using oscillators: A temperature sensor includes: a first oscillator that generates a first frequency signal; a second oscillator that generates a second frequency signal; a multiplexer that selectively passes the first frequency signal and the second frequency signal; and a frequency-to-digital converter that converts a frequency difference between the first frequency signal... Agent: Rabin & Berdo, PC

20080238562 - Voltage-controlled oscillator: A voltage-controlled oscillator has an oscillation frequency controlled through a voltage applied across ends of a variable-capacitance element. The voltage-controlled oscillator has a frequency control bias circuit which applies to a first end of the variable-capacitance element a voltage for frequency control according to a control voltage, a first current... Agent: Leydig Voit & Mayer, Ltd

20080238564 - Method for enabling an oscillator circuit using transition detection: An oscillator circuit may be used with controller circuits that are designed to operate with crystals, with no modifications to the pinout or firmware of the controller circuit. In some embodiments, the oscillator circuit includes an enable input that is responsive to low-amplitude transitions, which may be coupled to and... Agent: Zagorin O'brien Graham LLP (023)

20080238565 - Oscillator circuit with transition detection enable: An oscillator circuit may be used with controller circuits that are designed to operate with crystals, with no modifications to the pinout or firmware of the controller circuit. In some embodiments, the oscillator circuit includes an enable input that is responsive to low-amplitude transitions, which may be coupled to and... Agent: Zagorin O'brien Graham LLP (023)