Oscillators inventions 06/07

20070146081 - System and method for charge-pump with phase-frequency detection capability: A method of generating a correction signal for a voltage controlled oscillator (VCO) includes receiving a first signal in a correction current generator, changing a state of a first error signal substantially simultaneously with a first changing state of the first signal, receiving a second signal in the correction current... Agent: Martine Penilla & Gencarella, LLP

20070146083 - Calibration of oscillator devices: A clock device having a resonating device such as a crystal of SAW supplying a controllable oscillator such as a digitally controlled oscillator is calibrated by supplying a calibration clock. A phase-locked loop is utilized to generate one or more correction factors causing the PLL to lock to the calibration... Agent: Zagorin O'brien Graham LLP

20070146082 - Frequency synthesizer, wireless communications device, and control method: A plurality of control voltages V1 to V3 are sequentially applied to a VCO 5 so as to obtain, for each of these control voltages, the operating reference voltages Vref1 to Vref3 for the variable capacitor elements VC51 to VC56 with which the difference between the oscillation frequency of the... Agent: Mcdermott Will & Emery LLP

20070146084 - Klystron amplifier: A klystron has a plurality of electron beam paths and plural damped disc-shaped cavities. The plurality of electron beam paths cut the cavities and the Klystron amplifier further comprises an annular input cavity and an annular output cavity disposed around the substantially circular external periphery of respective disc-shaped cavities, and... Agent: Hamilton, Brook, Smith & Reynolds, P.C.

20070146085 - Atomic frequency acquiring apparatus and atomic clock: An atomic frequency acquisition apparatus includes: a cell enclosing atomic gas therein; a laser light source that oscillates a laser light that enters the cell and excites the atomic gas; and a photodetecting section that detects the laser light that has passed through the cell, wherein the cell has at... Agent: Harness, Dickey & Pierce, P.L.C

20070146086 - Variable-frequency oscillator incorporating thin-film bulk acoustic resonators: Variable-frequency oscillators incorporating thin-film bulk acoustic resonators (FBARs) are described. In one aspect, a variable-frequency oscillator includes a first oscillator circuit and a second oscillator circuit. The first oscillator circuit includes a first film bulk acoustic resonator that has a first resonant frequency. The second oscillator circuit is coupled to... Agent: Agilent Technologies Inc.

20070146087 - Rc oscillator integrated circuit including capacitor: An RC oscillator integrated circuit includes: an active current mirror connected to an external resistor, for receiving a current signal corresponding to a voltage signal applied to the external resistor, performing 1/N-times division of the received current signal according to an input clock signal, and generating a 1/N-times current signal;... Agent: Sidley Austin Brown & Wood LLP

20070146088 - Oscillation circuit and a semiconductor circuit device having the oscillation circuit: There is provided an LC resonance type oscillation circuit with a wide frequency variable range with a small variation of Q and capable of reducing a chip size due to no external parts required, and a communication semiconductor circuit device (high-frequency IC) having the oscillation circuit. In the LC resonance... Agent: Mattingly, Stanger, Malur & Brundidge, P.C.

20070146089 - Oscillator circuit and l load differential circuit achieving a wide oscillation frequency range and low phase noise characteristics: An oscillator circuit is formed of a differential LC resonant circuit formed of an L load differential circuit including inductance-variable portions and a capacitor element, and a positive feedback circuit formed of N-channel MOS transistors. The inductance-variable portion is configured to vary the inductance by selecting a plurality of switch... Agent: Buchanan, Ingersoll & Rooney PC

20070139124 - Frequency generator arrangement: A frequency generator is provided. The generator comprises two voltage controlled oscillators generating a first signal of a given multiple of a predetermined raster frequency, and a second signal of another given multiple of a predetermined raster frequency, dividers dividing the output signal of the oscillator until the frequency of... Agent: Hollingsworth & Funk, LLC

20070139125 - Magnetron: A magnetron is provided including a yoke having an internal space, a first magnet provided at one end of the internal space, a second magnet provided at a second end of the internal space, the second magnet being axially spaced from the first magnet. Further, an anode cylinder that generates... Agent: Greenblum & Bernstein, P.L.C

20070139126 - 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.

20070139127 - Quadrature clock divider: A divide-by-n process is effected via a scale-by-four/n process (110, 210, 310) followed by a divide-by-four process (120, 220, 320). A quadrature input clock facilitates a scale-by-four/n process, via a clock-phase selection process. By incorporating a terminal divide-by-four process, quadrature output signals are easily provided. A divide-by-three quadrature divider effects... Agent: Philips Electronics North America Corporation Intellectual Property & Standards

20070139128 - Atomic frequency acquiring apparatus and atomic clock: An atomic frequency acquisition apparatus includes: a cell enclosing atomic gas therein; a laser light source that oscillates laser light that enters the cell and excites the atomic gas; and a photodetecting section that detects the laser light that has passed the cell, wherein the laser light source and the... Agent: Harness, Dickey & Pierce, P.L.C

20070139129 - Rf balanced matching device: In an RF balanced matching device, a first capacity pattern of a first area is formed on a first ceramic sheet. A second capacity pattern of a second area is formed on the first ceramic sheet, spaced apart from the first capacity pattern at a predetermined distance. A third capacity... Agent: Mcdermott Will & Emery LLP

20070139130 - Super-regenerative receiver: A super-regenerative receiver including a super-regenerative oscillator is disclosed. The super-regenerative receiver includes a super-regenerative oscillator for generating an oscillation signal when receiving driving current exceeding a predetermined critical level. The receiver also includes a bias current controller for generating bias current according to an output of the super-regenerative oscillator,... Agent: Lowe Hauptman Berner, LLP

20070132515 - Wide-band multimode frequency synthesizer and variable frequency divider: A wide-band multimode frequency synthesizer using a Phase Locked Loop (PLL) is provided. The multiband frequency synthesizer includes a multimode prescaler, a phase detector/a charge pump, a swallow type frequency divider, and a switching bank LC tuning voltage-controlled oscillator having wide-band and low phase noise characteristics. The multimode prescaler operates... Agent: Ladas & Parry LLP

20070132517 - Automatic frequency tuning in a phase lock loop: A method for automatic frequency tuning in a phase lock loop suitable for use in multi-band VCO wireless systems having very limited initial frequency lock times is disclosed. A predetermined subset of VCOs out of a larger bank of VCOs is selected to serve as interpolation points. The interpolation point... Agent: North America Intellectual Property Corporation

20070132516 - Control unit: A control unit having an oscillator for a processor is described, the control unit storing a temporary absence of oscillation of the oscillator in a first error memory, if oscillation begins again after the absence.... Agent: Kenyon & Kenyon LLP

20070132518 - Auto-gain controlled digital phase-locked loop and method thereof: A digital PLL system includes a first multiplier coupled to a phase difference signal for multiplying the phase difference signal by a first gain factor; a second multiplier coupled to the phase difference signal for multiplying the phase difference signal by a second gain factor; a digital loop filter coupled... Agent: North America Intellectual Property Corporation

20070132519 - Oscillator circuit: An integrated circuit has an internal oscillator circuit for being connected to an external frequency source such as a crystal or a ceramic resonator. The internal oscillator circuit has an inverting amplifier across the frequency source terminals to establish an oscillation there. One terminal of the frequency source is coupled... Agent: Freescale Semiconductor, Inc. Law Department

20070132521 - Low phase noise differential lc tank vco with current negative feedback: In the oscillator of the differential current negative feedback VCO, emitter noise currents generated by base noise voltages of Q1 and Q2 induced by low- and high-frequency noise sources in the bases of Q1 and Q2 are sampled by emitter resistors, amplified through bases of Q3 and Q4, and thus... Agent: Mayer, Brown, Rowe & Maw LLP

20070132520 - Method for voltage controlled oscillator yield enhancement: A method of selecting fabrication parameters for an on-chip inductor of an integrated circuit. The integrated circuit includes a capacitor fabricated prior to the inductor. The capacitance of the capacitor is measured and, based on the measured capacitance and on a desired frequency range, a suitable inductor is fabricated. The... Agent: Borden Ladner Gervais LLP

20070132522 - Multi-band lc resonance voltage-controlled oscillator with adjustable negative resistance cell: Provided is an LC resonance voltage-controlled oscillator (VCO) used for a multi-band multi-mode wireless transceiver. In order to generate a multi-band frequency, a capacitor bank and a switchable inductor are included in the LC resonance voltage-controlled oscillator. The LC resonance voltage-controlled oscillator employs an adjustable emitter-degeneration negative resistance cell in... Agent: Ladas & Parry LLP

20070132523 - Leakage oscillator based aging monitor: According to embodiments of the subject matter disclosed in this application, the age of a target circuit component in a semiconductor device may be monitored by using at least one aging leakage oscillator and a reference leakage oscillator. An aging leakage oscillator is stressed whenever the target circuit component is... Agent: Intel Corporation C/o Intellevate, LLC

20070132524 - Voltage-controlled oscillator, transmitter, and receiver: A voltage-controlled oscillator includes (i) a first variable-capacity element, (ii) a resonance circuit whose resonance frequency changes in accordance with a control voltage applied to the first variable-capacity element, (iii) a second variable-capacity element connected in parallel with the first variable-capacity element, (iv) resonance frequency range switching means which switches... Agent: Birch Stewart Kolasch & Birch

20070132525 - Method and device for testing a phase locked loop: Testing device for testing a phase locked loop having a power supply input, said testing device comprising: a power supply unit for providing a power supply signal VDD having a variation profile to the power supply input of the phase locked loop, wherein a width and height of said variation... Agent: Philips Electronics North America Corporation Intellectual Property & Standards

20070126511 - Oscillator circuit with tuneable signal delay means: The invention discloses an oscillator circuit (100, 200, 300, 400), comprising an oscillating element (110, 210, 310, 410) and output means (115, 215, 315, 415) for outputting an oscillation frequency from the oscillating circuit. The circuit further comprises a signal delay means (120, 220, 320, 420) which is arranged in... Agent: Nixon & Vanderhye, PC

20070126513 - Self-test digital phase-locked loop and method thereof: A phase-locked loop (PLL) apparatus utilizes a digital control unit to perform a stable phase-locking and self-testing. The PLL circuit internally generates a set of digital parameters. The set of digital parameters are configured to be as the basis of testing. Therefore, the PLL can be tested by a digital... Agent: Birch Stewart Kolasch & Birch

20070126514 - Switch-capacitor loop filter for phase lock loops: A switch-capacitor loop filter is used to generate a control voltage for a voltage-controlled oscillator (VCO) in a phase lock loop (PLL). The switch-capacitor circuit works in a multi-phase manner including at least two non-overlapping phases: a sampling phase and a transfer phase. During the sampling phase, the current representing... Agent: Schwegman, Lundberg, Woessner & Kluth, P.A.

20070126512 - Type ii phase locked loop using dual path and dual varactors to reduce loop filter components: A phase locked loop (PLL) with reduced loop filter components having dual charge pumps and corresponding dual signal paths that reduce on-chip component size within the filters. The dual paths are combined advantageously via dual varactors within a voltage controlled oscillator to further reduce loop filter components. The PLL removes... Agent: Borden Ladner Gervais LLP

20070126516 - On-chip tunable artificial tank circuit: Disclosed is a tuned circuit tuned to an input signal having a predetermined radio frequency, the tuned circuit comprising a tank circuit having a loaded ring oscillator circuit with a resonant frequency corresponding to said radio frequency. The tank circuit is configured for a predetermined frequency that the tuned circuit... Agent: Marks & Clerk

20070126515 - Ring oscillator for determing select-to-output delay of a multiplexer: The frequency of an oscillating signal generated by a ring oscillator is used to determine the select-to-output delay of standard cell multiplexers. The ring oscillator has no active logic elements other than an odd or even number of standard cell multiplexers. The signal path of the oscillating signal passes through... Agent: Qualcomm Incorporated

20070126517 - Electric signal outputting apparatus, semiconductor laser modulation driving apparatus, and image forming apparatus: The present invention discloses an electric signal outputting apparatus in a serial electric transmission system. The electric signal outputting apparatus includes a switching part for switchably generating high and low output signals in accordance with signal data and transmitting the output signals to a transmission path, an impedance matching part... Agent: Oblon, Spivak, Mcclelland, Maier & Neustadt, P.C.

20070126518 - Oscillator using tfms line: Provided is an oscillator in which a resonator unit and an oscillator unit are coupled with each other using a thin film microstrip (TFMS) line to increase a line impedance and thus improve a phase noise characteristic. The oscillator includes a resonator unit resonating in a specific frequency band among... Agent: Mayer, Brown, Rowe & Maw LLP

20070126519 - Surface mount type crystal oscillator: A surface mount type crystal oscillator comprises: a package body comprised of laminated ceramic including a flat central layer made up of a first layer and a second layer, and a first and a second frame layer; a crystal blank hermetically sealed in a first recess defined by the first... Agent: Fitch, Even, Tabin & Flannery

20070126520 - Voltage-controlled oscillator: A voltage-controlled oscillator including a voltage-controlled oscillation section, a frequency control bias circuit, a temperature compensation bias circuit, and a temperature compensation bias generation circuit. The temperature compensation bias generation circuit has a transistor having its collector or drain connected to the temperature compensation bias circuit, a first resistor having... Agent: Leydig Voit & Mayer, Ltd

20070126521 - Coaxial resonator based voltage controlled oscillator/phased locked loop synthesizer module: A synthesizer module/oscillator assembly includes a voltage controlled oscillator with a coaxial resonator. In one embodiment, the module measures 20.3 mm×14.8 mm×3.9 mm and the coaxial resonator is positioned on the circuit board of the module between a phase locked loop integrated circuit and a main section of the voltage... Agent: Daniel J. Deneufbourg Cts Corporation