| |
 |
|
Class Information
Number: 331/57
Name: Oscillators > Ring oscillators
Description: Subject matter wherein the oscillator comprises three or more active elements connected or cascade, the output of one active element being connected to the input of another active element to form a closed chain or loop, the active elements being so connected and biased that they are caused to switch from a conducting to a nonconducting state in succession, cyclically, thereby generating self-sustained oscillations.
Patents under this class:
| Patent Number |
Title Of Patent |
Date Issued |
| 6566970 |
High-speed, high PSRR, wide operating range voltage controlled oscillator |
May. 20, 2003 |
| 6559727 |
High-frequency low-voltage multiphase voltage-controlled oscillator |
May. 6, 2003 |
| 6556088 |
Phase-locked loop having a stable damping factor |
Apr. 29, 2003 |
| 6556089 |
Electronic circuitry |
Apr. 29, 2003 |
| 6556094 |
Oscillator circuit and integrated circuit for oscillation |
Apr. 29, 2003 |
| 6552619 |
Multi-channel clock recovery circuit |
Apr. 22, 2003 |
| 6549081 |
Integrator/ comparator control of ring oscillator frequency and duty cycle |
Apr. 15, 2003 |
| 6549082 |
High frequency oscillator |
Apr. 15, 2003 |
| 6545549 |
Remotely controllable phase locked loop clock circuit |
Apr. 8, 2003 |
| 6542040 |
Phase-locked loop employing programmable tapped-delay-line oscillator |
Apr. 1, 2003 |
| 6538522 |
Method and ring oscillator for evaluating dynamic circuits |
Mar. 25, 2003 |
| 6535070 |
Variable frequency oscillator, and phase locked loop and clock synchronizer using thereof |
Mar. 18, 2003 |
| 6535071 |
CMOS voltage controlled phase shift oscillator |
Mar. 18, 2003 |
| 6529084 |
Interleaved feedforward VCO and PLL |
Mar. 4, 2003 |
| 6525613 |
Efficient current feedback buffer |
Feb. 25, 2003 |
| 6525615 |
Oscillator with digitally variable phase for a phase-locked loop |
Feb. 25, 2003 |
| 6525617 |
Buffering for LC-based stage |
Feb. 25, 2003 |
| 6525618 |
Electronic circuitry |
Feb. 25, 2003 |
| 6522208 |
Oscillator and method for generating a frequency within a stable frequency range |
Feb. 18, 2003 |
| 6518802 |
Circuits and methods for generating an accurate digital representation of a sinusoidal wave |
Feb. 11, 2003 |
| 6518846 |
Voltage controlled oscillator with voltage regulation |
Feb. 11, 2003 |
| 6515549 |
Semiconductor device having critical path connected by feedback ring oscillator |
Feb. 4, 2003 |
| 6515550 |
Bipolar ring oscillator with enhanced startup and shutdown |
Feb. 4, 2003 |
| 6515552 |
Voltage control oscillator with stable free run frequency using current clamping |
Feb. 4, 2003 |
| 6512420 |
Variable frequency oscillator utilizing selectively combined dual delay paths |
Jan. 28, 2003 |
| 6509803 |
Voltage-controlled oscillator having short synchronous pull-in time |
Jan. 21, 2003 |
| 6507229 |
Voltage controlled delay circuit |
Jan. 14, 2003 |
| 6507247 |
Circuit and method for generating a variable frequency clock signal |
Jan. 14, 2003 |
| 6504439 |
Voltage controlled oscillation circuit having oscillation frequency variable control units inserted between inversion circuit elements |
Jan. 7, 2003 |
| 6501336 |
Self-calibration device and method for calibrating phase offset between output waveforms of ring osciliator |
Dec. 31, 2002 |
| 6501339 |
Ring oscillators with improved signal-path matching for high-speed data communications |
Dec. 31, 2002 |
| 6501583 |
Optical receiver module optical transmitter module phase-locked loop circuit voltage-controlled oscillator and frequency response controllable amplifier |
Dec. 31, 2002 |
| 6498538 |
Low jitter integrated phase locked loop with broad tuning range |
Dec. 24, 2002 |
| 6496078 |
Activating on-chip oscillator using ring oscillator |
Dec. 17, 2002 |
| 6492877 |
Coupling for LC-based VCO |
Dec. 10, 2002 |
| 6489821 |
High frequency system with duty cycle buffer |
Dec. 3, 2002 |
| 6480072 |
Method and apparatus for generating random numbers |
Nov. 12, 2002 |
| 6472944 |
Voltage controlled oscillator with delay circuits |
Oct. 29, 2002 |
| 6469585 |
Low phase noise ring-type voltage controlled oscillator |
Oct. 22, 2002 |
| 6466098 |
Analogue-controlled phase interpolator |
Oct. 15, 2002 |
| 6466100 |
Linear voltage controlled oscillator transconductor with gain compensation |
Oct. 15, 2002 |
| 6466520 |
Built-in AC self test using pulse generators |
Oct. 15, 2002 |
| 6462623 |
Method and apparatus for PLL with improved jitter performance |
Oct. 8, 2002 |
| 6462625 |
Micropower RC oscillator |
Oct. 8, 2002 |
| 6459327 |
Feedback controlled substrate bias generator |
Oct. 1, 2002 |
| 6456166 |
Semiconductor integrated circuit and phase locked loop circuit |
Sep. 24, 2002 |
| 6452430 |
Phase-locked loop circuit |
Sep. 17, 2002 |
| 6452458 |
Voltage-controlled oscillator |
Sep. 17, 2002 |
| 6452459 |
Circuit for measuring signal delays of synchronous memory elements |
Sep. 17, 2002 |
| 6448862 |
Single event upset immune oscillator circuit |
Sep. 10, 2002 |
|
|
|
