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Class Information
Number: 331/176
Name: Oscillators > Frequency stabilization > Temperature or current responsive means in circuit
Description: Subject matter wherein the oscillator circuit or structure is modified by the addition of a current or temperature responsive element thereto to compensate for the undesirable drift in oscillator frequency caused by the effect of current flow on the circuit parameters or that due to temperature changes (internal or ambient).
Patents under this class:
| Patent Number |
Title Of Patent |
Date Issued |
| 7622997 |
Method for dynamically tuning the clock frequency of an oscillator and corresponding oscillating system |
Nov. 24, 2009 |
| 7619486 |
Method for detecting and compensating for temperature effects |
Nov. 17, 2009 |
| 7616073 |
Resonator and amplifying oscillator circuit having a high resolution skew-compensated frequency synthesizer integrated on a single substrate |
Nov. 10, 2009 |
| 7602255 |
Loop circuits that reduce bandwidth variations |
Oct. 13, 2009 |
| 7602259 |
Voltage-controlled oscillator |
Oct. 13, 2009 |
| 7598822 |
Process, supply, and temperature insensitive integrated time reference circuit |
Oct. 6, 2009 |
| 7598818 |
Temperature compensation for a voltage-controlled oscillator |
Oct. 6, 2009 |
| 7596851 |
Method of manufacturing a quartz resonator |
Oct. 6, 2009 |
| 7595701 |
Crystal oscillator |
Sep. 29, 2009 |
| 7586382 |
Methods and systems for temperature related frequency drift compensation |
Sep. 8, 2009 |
| 7586377 |
Real time clock |
Sep. 8, 2009 |
| 7586380 |
Bias circuit to stabilize oscillation in ring oscillator, oscillator, and method to stabilize oscillation in ring oscillator |
Sep. 8, 2009 |
| 7583157 |
Method of manufacturing a temperature compensated oscillator |
Sep. 1, 2009 |
| 7583154 |
Voltage controlled oscillator |
Sep. 1, 2009 |
| 7583152 |
Phase-locked loop with self-correcting phase-to-digital transfer function |
Sep. 1, 2009 |
| 7579919 |
Method and apparatus for compensating temperature changes in an oscillator-based frequency synthesizer |
Aug. 25, 2009 |
| 7576621 |
Film bulk acoustic resonator calibration |
Aug. 18, 2009 |
| 7573345 |
Temperature compensated oven controlled crystal oscillator |
Aug. 11, 2009 |
| 7573346 |
Oscillation circuit capable of having stable oscillation in wide temperature range |
Aug. 11, 2009 |
| 7570125 |
Crystal oscillator |
Aug. 4, 2009 |
| 7560998 |
Clock signal output circuit |
Jul. 14, 2009 |
| 7548131 |
Oscillation circuit with temperature-dependent current source |
Jun. 16, 2009 |
| 7548130 |
Characteristic automatic compensating apparatus, characteristic automatic compensating method, characteristic automatic compensating program of oscillator and positioning signal receiver |
Jun. 16, 2009 |
| 7545227 |
Low-latency start-up for a monolithic clock generator and timing/frequency reference |
Jun. 9, 2009 |
| 7545228 |
Dynamic temperature compensation for a digitally controlled oscillator using dual MEMS resonators |
Jun. 9, 2009 |
| 7545229 |
Tunable frequency, low phase noise and low thermal drift oscillator |
Jun. 9, 2009 |
| 7541884 |
Methods and apparatus for crystal oscillator drift estimation and compensation |
Jun. 2, 2009 |
| 7535309 |
Low power, temperature and frequency, tunable, on-chip clock generator |
May. 19, 2009 |
| 7525392 |
XtalClkChip: trimming-free crystal-free precision reference clock oscillator IC chip |
Apr. 28, 2009 |
| 7522009 |
Oscillation stabilization circuit |
Apr. 21, 2009 |
| 7522010 |
Ultra-low power crystal oscillator |
Apr. 21, 2009 |
| 7515008 |
Semiconductor integrated circuit having oscillator frequency compensation function |
Apr. 7, 2009 |
| 7515496 |
Self-refresh timer circuit and method of adjusting self-refresh timer period |
Apr. 7, 2009 |
| 7511587 |
Oscillator comprising two one-port surface wave resonators |
Mar. 31, 2009 |
| 7511589 |
DFY of XtalClkChip: design for yield of trimming-free crystal-free precision reference clock osillator IC chip |
Mar. 31, 2009 |
| 7508274 |
PLL with phase clipping and resynchronization |
Mar. 24, 2009 |
| 7504901 |
Supply voltage controlled voltage and temperature compensated oscillator |
Mar. 17, 2009 |
| 7504902 |
Precision oscillator having linbus capabilities |
Mar. 17, 2009 |
| 7501908 |
Oscillation circuit having current scaling relationship and the method for using the same |
Mar. 10, 2009 |
| 7482889 |
Apparatus and method of temperature compensating an ovenized oscillator |
Jan. 27, 2009 |
| 7479835 |
Constant temperature type crystal oscillator for high stability |
Jan. 20, 2009 |
| 7474165 |
Oscillating device, optical deflector and optical instrument using the same |
Jan. 6, 2009 |
| 7463097 |
Systems involving temperature compensation of voltage controlled oscillators |
Dec. 9, 2008 |
| 7461285 |
Programmable resistor array having current leakage control |
Dec. 2, 2008 |
| 7459984 |
Method and apparatus for self-calibration and adaptive temperature compensation in GPS receivers |
Dec. 2, 2008 |
| 7456699 |
Frequency controller for a monolithic clock generator and timing/frequency reference |
Nov. 25, 2008 |
| 7456700 |
Variable loop gain oscillator system |
Nov. 25, 2008 |
| 7449968 |
Frequency and temperature compensation synthesis for a MEMS resonator |
Nov. 11, 2008 |
| 7443258 |
Oscillator system having a plurality of microelectromechanical resonators and method of designing, controlling or operating same |
Oct. 28, 2008 |
| 7443255 |
Oscillator circuit and method for adjusting oscillation frequency of same |
Oct. 28, 2008 |
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