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Class Information
Number: 331/36C
Name: Oscillators > Automatic frequency stabilization using a phase or frequency sensing means > Particular frequency control means > Reactance device (e.g., variable capacitors, saturable inductors, reactance tubes, etc.) > Capacitor controlled afc
Description:
Patents under this class:
| Patent Number |
Title Of Patent |
Date Issued |
| 7622980 |
Switched capacitor circuit capable of minimizing clock feedthrough effect and having low phase noise and method thereof |
Nov. 24, 2009 |
| 7612623 |
Micropower RC oscillator |
Nov. 3, 2009 |
| 7612624 |
Resistor-capacitor oscillation circuit capable of adjusting oscillation frequency and method of the same |
Nov. 3, 2009 |
| 7612625 |
Bang-bang architecture |
Nov. 3, 2009 |
| 7609121 |
Multiple status e-fuse based non-volatile voltage control oscillator configured for process variation compensation, an associated method and an associated design structure |
Oct. 27, 2009 |
| 7609122 |
Method and system for calibration of a tank circuit in a phase lock loop |
Oct. 27, 2009 |
| 7605668 |
Delay stage with controllably variable capacitive load |
Oct. 20, 2009 |
| 7605667 |
Frequency synthesizer with a harmonic locked phase/frequency detector |
Oct. 20, 2009 |
| 7602256 |
Systems and techniques for auto-calibration and fast tuning of voltage controlled oscillators in phase-lock loops |
Oct. 13, 2009 |
| 7589596 |
Voltage controlled oscillator and wireless transceiver using the same |
Sep. 15, 2009 |
| 7586381 |
User-definable, low cost, low phase hit and spectrally pure tunable oscillator |
Sep. 8, 2009 |
| 7573347 |
Digitally controlled oscillator device and method for generating an oscillating signal with a digitally controlled phase locked loop |
Aug. 11, 2009 |
| 7567139 |
Voltage controlled oscillator, and PLL circuit and wireless communication apparatus using the same |
Jul. 28, 2009 |
| 7554416 |
Multi-band LC resonance voltage-controlled oscillator with adjustable negative resistance cell |
Jun. 30, 2009 |
| 7545230 |
Back-gate coupling voltage control oscillator |
Jun. 9, 2009 |
| 7538630 |
Voltage controlled oscillator |
May. 26, 2009 |
| 7535308 |
Voltage-controlled oscillator decreasing phase noise |
May. 19, 2009 |
| 7528667 |
T-network capbank |
May. 5, 2009 |
| 7525394 |
Ultra low power CMOS oscillator for low frequency clock generation |
Apr. 28, 2009 |
| 7518458 |
Oscillator and data processing equipment using the same and voltage control oscillator and data processing equipment using voltage control oscillator |
Apr. 14, 2009 |
| 7511582 |
Voltage controlled oscillator for use in phase locked loop |
Mar. 31, 2009 |
| 7508279 |
Resonance circuit with variable diodes |
Mar. 24, 2009 |
| 7501907 |
Self-biased active VCO level shifter |
Mar. 10, 2009 |
| 7501903 |
Frequency adjustment techniques in coupled LC tank circuits |
Mar. 10, 2009 |
| 7492229 |
Method and apparatus to improve frequency stability of an integrated circuit oscillator |
Feb. 17, 2009 |
| 7486151 |
Semiconductor circuit for use in timer circuit or oscillator circuit |
Feb. 3, 2009 |
| 7486153 |
Circuit and method for controlling an oscillation loop |
Feb. 3, 2009 |
| 7486154 |
Flicker noise degeneration technique for VCO |
Feb. 3, 2009 |
| 7477111 |
Digitally controlled oscillator |
Jan. 13, 2009 |
| 7477112 |
Structure for the main oscillator of a counter-controlled delay line |
Jan. 13, 2009 |
| 7477113 |
Voltage-controlled capacitance linearization circuit |
Jan. 13, 2009 |
| 7474159 |
Frequency calibration for frequency synthesizers |
Jan. 6, 2009 |
| 7463097 |
Systems involving temperature compensation of voltage controlled oscillators |
Dec. 9, 2008 |
| 7449871 |
System for setting an electrical circuit parameter at a predetermined value |
Nov. 11, 2008 |
| 7449964 |
System and method for tuning output drivers using voltage controlled oscillator capacitor settings |
Nov. 11, 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 |
| 7439819 |
Piezoelectric-oscillator |
Oct. 21, 2008 |
| 7414482 |
Resonance mode selection using a resonator-synchronized second-order oscillator |
Aug. 19, 2008 |
| 7408422 |
Variable-capacitance circuit element |
Aug. 5, 2008 |
| 7400206 |
Clock circuit with programmable load capacitors |
Jul. 15, 2008 |
| 7400209 |
Oscillator circuit |
Jul. 15, 2008 |
| 7397319 |
Apparatus and method for phase lock loop gain control |
Jul. 8, 2008 |
| 7391272 |
Voltage controlled oscillator with full adder |
Jun. 24, 2008 |
| 7388439 |
Low pass filter and electronic device |
Jun. 17, 2008 |
| 7388446 |
Directly modulated CMOS VCO |
Jun. 17, 2008 |
| 7385539 |
All-digital phase locked loop (ADPLL) system |
Jun. 10, 2008 |
| 7382207 |
Oscillator circuit suppressing variation of oscillation frequency |
Jun. 3, 2008 |
| 7372343 |
Oscillator circuit |
May. 13, 2008 |
| 7365610 |
Push compensation in an oscillator |
Apr. 29, 2008 |
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