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Class Information
Number: 331/117R
Name: Oscillators > Solid state active element oscillator > Transistors > L-c type
Description:










Sub-classes under this class:

Class Number Class Name Patents
331/117D Distributed parameter resonator transistor oscillators 377
331/117FE Field-effect transistor active element 576


Patents under this class:
1 2 3 4 5 6 7 8 9 10 11 12 13 14 15 16 17

Patent Number Title Of Patent Date Issued
6737929 Hybrid n+ and p+ gate-doped voltage variable capacitors to improve linear tuning range in voltage controlled oscillators May. 18, 2004
6734741 Frequency synthesizer with digitally-controlled oscillator May. 11, 2004
6731182 Voltage-controlled oscillator and communication apparatus employing the same May. 4, 2004
6731169 Differential amplifier circuit May. 4, 2004
6724270 Oscillation circuit of cascode connection type Apr. 20, 2004
6724273 Filter circuitry for voltage controlled oscillator Apr. 20, 2004
6724267 Voltage controlled oscillator Apr. 20, 2004
6720834 Tunable resonant circuit and voltage controlled oscillator using same Apr. 13, 2004
6720835 Voltage-controlled oscillation circuit Apr. 13, 2004
6720838 Apparatus and method for continuous variable reactive impedance control Apr. 13, 2004
6714086 Symmetric oscillators Mar. 30, 2004
6707344 High efficiency, low noise frequency tripler and method Mar. 16, 2004
6700450 Voltage-controlled oscillator with an automatic amplitude control circuit Mar. 2, 2004
6700451 Cross coupled cascode voltage controlled oscillator Mar. 2, 2004
6690244 Low phase-noise integrated voltage controlled oscillator Feb. 10, 2004
6690243 Multi-phase voltage-controlled oscillator at modulated, operating frequency Feb. 10, 2004
6686803 Integrated circuit incorporating circuitry for determining which of at least two possible frequencies is present on an externally provided reference signal and method therefor Feb. 3, 2004
6683508 System and method of increasing a self-resonant frequency of a tuning circuit and an oscillator employing the same Jan. 27, 2004
6683507 High-frequency oscillation circuit Jan. 27, 2004
6680655 Automatic gain control for a voltage controlled oscillator Jan. 20, 2004
6674333 Band switchable voltage controlled oscillator with substantially constant tuning range Jan. 6, 2004
6667668 System and method for controlling the frequency output from an oscillator using an in-phase voltage Dec. 23, 2003
6667666 Synchronous oscillators Dec. 23, 2003
6664781 Inductive proximity sensor with a differentially coupled energy source Dec. 16, 2003
6664863 LC oscillator Dec. 16, 2003
6658748 Digitally-controlled L-C oscillator Dec. 9, 2003
6661297 Multi-octave wideband voltage controlled oscillator Dec. 9, 2003
6661301 Oscillator circuit Dec. 9, 2003
6657509 Differentially controlled varactor Dec. 2, 2003
6657508 Frequency-generator circuit Dec. 2, 2003
6657500 Method and system of characterization and behavioral modeling of a phase-locked loop for fast mixed signal simulation Dec. 2, 2003
6650194 Phase shift control for voltage controlled oscillator Nov. 18, 2003
6650195 Oscillator with differential tunable tank circuit Nov. 18, 2003
6639478 Apparatus and method for reducing phase noise in oscillator circuits Oct. 28, 2003
6639477 Oscillator, transmitter provided with such an oscillator, and use of such a transmitter Oct. 28, 2003
6624709 Voltage-controlled oscillator and electronic device using the same Sep. 23, 2003
6621363 Differential type voltage controlled oscillator Sep. 16, 2003
6621362 Varactor based differential VCO band switching Sep. 16, 2003
6621364 Voltage-controlled oscillator for frequency modulation Sep. 16, 2003
6621365 Method and apparatus providing a dual mode VCO for an adaptive receiver Sep. 16, 2003
6614322 Voltage controlled oscillator with a transistor and a frequency variable resonant circuit Sep. 2, 2003
6606006 Oscillator on optimized semiconducting substrate Aug. 12, 2003
6606008 Oscillator circuit Aug. 12, 2003
6600380 Method and device for measuring the damping of an LC-oscillating circuit Jul. 29, 2003
6597248 Voltage-controlled oscillator Jul. 22, 2003
6593824 Process for reducing the decay and transient times of oscillating circuits Jul. 15, 2003
6593826 Wireless phone system with voltage controlled oscillator Jul. 15, 2003
6593822 Oscillator for achieving stable oscillation Jul. 15, 2003
6566969 High frequency dual band output oscillator May. 20, 2003
6566953 High-frequency amplifier circuit for UHF television tuner having less distortion May. 20, 2003

1 2 3 4 5 6 7 8 9 10 11 12 13 14 15 16 17










 
 
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