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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
7639095 Circuit and method for contact-less transmission Dec. 29, 2009
7636021 Low noise and low phase hits tunable oscillator Dec. 22, 2009
7629859 Integrated resonance circuit Dec. 8, 2009
7626470 Voltage-controlled oscillator for multi-band and RF communication apparatus having the same Dec. 1, 2009
7616072 Integrated circuit and receiver of a global positioning system (GPS) Nov. 10, 2009
7609120 Voltage-controlled oscillator using LC resonator Oct. 27, 2009
7602259 Voltage-controlled oscillator Oct. 13, 2009
7598819 Electronic circuit with transistors sharing one and the same well Oct. 6, 2009
7595700 LC quadrature oscillator having phase and amplitude mismatch compensator Sep. 29, 2009
7589598 Dual-band voltage controlled oscillator Sep. 15, 2009
7586381 User-definable, low cost, low phase hit and spectrally pure tunable oscillator Sep. 8, 2009
7586379 Voltage controlled oscillator with operation current adjusting device Sep. 8, 2009
7583156 Oscillator with multi-tap inductor, capacitors, and negative-Gm stages Sep. 1, 2009
7583166 Inductor Q factor enhancement apparatus has bias circuit that is coupled to negative resistance generator for providing bias signal Sep. 1, 2009
7573342 VCO pre-compensation Aug. 11, 2009
7573343 RTD-HBT differential oscillator topology Aug. 11, 2009
7567139 Voltage controlled oscillator, and PLL circuit and wireless communication apparatus using the same Jul. 28, 2009
7561001 Electronic oscillator circuit device Jul. 14, 2009
7561000 Oscillator circuit for a sensor Jul. 14, 2009
7557668 Injection-locked frequency divider Jul. 7, 2009
7557664 Injection-locked frequency divider Jul. 7, 2009
7547970 Semiconductor device Jun. 16, 2009
7545229 Tunable frequency, low phase noise and low thermal drift oscillator Jun. 9, 2009
7538630 Voltage controlled oscillator May. 26, 2009
7538624 Oscillator having multiple oscillation units May. 26, 2009
7535308 Voltage-controlled oscillator decreasing phase noise May. 19, 2009
7532080 LC oscillator circuit with a compensation coil for parasitical collector capacitor May. 12, 2009
7512389 Active inductors using bipolar silicon transistors Mar. 31, 2009
7511589 DFY of XtalClkChip: design for yield of trimming-free crystal-free precision reference clock osillator IC chip Mar. 31, 2009
7508279 Resonance circuit with variable diodes Mar. 24, 2009
7504899 Inductor and capacitor-based clock generator and timing/frequency reference Mar. 17, 2009
7504935 Transponder Mar. 17, 2009
7501907 Self-biased active VCO level shifter Mar. 10, 2009
7489207 Structure for voltage controlled oscillator Feb. 10, 2009
7479839 Varactor bank switching based on negative control voltage generation Jan. 20, 2009
7474164 Radar oscillator Jan. 6, 2009
7471164 Oscillator and method for operating an oscillator Dec. 30, 2008
7456697 Variable degeneration impedance supply circuit using switch and electronic circuits using the same Nov. 25, 2008
7449970 Frequency tuning circuits and voltage-controlled oscillator including the same Nov. 11, 2008
7449971 Transistor oscillating circuit having low change in oscillating frequency due to change in power supply voltage Nov. 11, 2008
7436266 LC quadrature VCO having startup circuit Oct. 14, 2008
7432768 Voltage controlled digital analog oscillator and frequency synthesizer using the same Oct. 7, 2008
7429899 Reduced eddy current loss in LC tank circuits Sep. 30, 2008
7423495 Oscillator and method for generating an oscillator signal Sep. 9, 2008
7414488 Low phase noise differential LC tank VCO with current negative feedback Aug. 19, 2008
7411468 Low voltage low-phase-noise oscillator Aug. 12, 2008
7408422 Variable-capacitance circuit element Aug. 5, 2008
7405632 Voltage-controlled oscillator, transmitter, and receiver Jul. 29, 2008
7400209 Oscillator circuit Jul. 15, 2008
7397318 Voltage-controlled oscillator Jul. 8, 2008

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










 
 
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