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Class Information
Number: 327/156
Name: Miscellaneous active electrical nonlinear devices, circuits, and systems > Signal converting, shaping, or generating > Synchronizing > With feedback > Phase lock loop
Description: Subject matter wherein a circuit compares the phase of the output signal with a reference signal and converts any difference into a correction voltage that changes the phase of the output so it matches that of the reference or input signal.
Sub-classes under this class:
Patents under this class:
| Patent Number |
Title Of Patent |
Date Issued |
| 7619451 |
Techniques for compensating delays in clock signals on integrated circuits |
Nov. 17, 2009 |
| 7616726 |
Optical disk apparatus and PLL circuit |
Nov. 10, 2009 |
| 7616068 |
Frequency synthesizer for integrated circuit radios |
Nov. 10, 2009 |
| 7616066 |
Oscillation device and controlling method therefor |
Nov. 10, 2009 |
| 7616037 |
Method and apparatus for controlling power-down mode of delay locked loop |
Nov. 10, 2009 |
| 7612621 |
System for providing open-loop quadrature clock generation |
Nov. 3, 2009 |
| 7612591 |
DLL circuit of semiconductor memory apparatus and method of delaying and locking clock in semiconductor memory apparatus |
Nov. 3, 2009 |
| 7612590 |
Oscillating apparatus |
Nov. 3, 2009 |
| 7612589 |
Phase-locked loop and control method utilizing the same |
Nov. 3, 2009 |
| 7610163 |
Method of controlling quality for a print controller |
Oct. 27, 2009 |
| 7605664 |
All digital phase locked loop system and method |
Oct. 20, 2009 |
| 7605620 |
System and method to improve the efficiency of synchronous mirror delays and delay locked loops |
Oct. 20, 2009 |
| 7603095 |
Apparatus and method of switching intervals |
Oct. 13, 2009 |
| 7602257 |
Signal generating circuit |
Oct. 13, 2009 |
| 7602253 |
Adaptive bandwidth phase locked loop with feedforward divider |
Oct. 13, 2009 |
| 7602252 |
Sigma delta modulator, fractional frequency synthesizer and sigma delta modulating method |
Oct. 13, 2009 |
| 7602223 |
Delay-locked loop circuit and method of generating multiplied clock therefrom |
Oct. 13, 2009 |
| 7598783 |
DLL circuit and method of controlling the same |
Oct. 6, 2009 |
| 7596052 |
Method and apparatus for reducing oscillation in synchronous circuits |
Sep. 29, 2009 |
| 7595672 |
Adjustable digital lock detector |
Sep. 29, 2009 |
| 7595671 |
PLL circuit |
Sep. 29, 2009 |
| 7592874 |
Phase/frequency detector, phase locked loop, method for phase/frequency detection and method for generating an oscillator signal |
Sep. 22, 2009 |
| 7590212 |
System and method for adjusting the phase of a frequency-locked clock |
Sep. 15, 2009 |
| 7589594 |
Variable loop bandwidth phase locked loop |
Sep. 15, 2009 |
| 7589575 |
Precision integrated phase lock loop circuit loop filter |
Sep. 15, 2009 |
| 7583773 |
Frequency synthesizing device with automatic calibration |
Sep. 1, 2009 |
| 7580498 |
Closed loop control system and method of dynamically changing the loop bandwidth |
Aug. 25, 2009 |
| 7580443 |
Clock generating method and clock generating circuit |
Aug. 25, 2009 |
| 7579887 |
Technique for efficiently managing both short-term and long-term frequency adjustments of an electronic circuit clock signal |
Aug. 25, 2009 |
| 7579886 |
Phase locked loop with adaptive phase error compensation |
Aug. 25, 2009 |
| 7577225 |
Digital phase-looked loop |
Aug. 18, 2009 |
| 7576618 |
Frequency synthesizer with a plurality of frequency locking circuits |
Aug. 18, 2009 |
| 7576614 |
Frequency independent control |
Aug. 18, 2009 |
| 7576577 |
Device for static phase error compensation in a phase-lock loop system with a symmetrical structure |
Aug. 18, 2009 |
| 7576576 |
Switchable PLL circuit |
Aug. 18, 2009 |
| 7573307 |
Systems and methods for reduced area delay locked loop |
Aug. 11, 2009 |
| 7573303 |
Digitally controlled system on-chip (SOC) clock generator |
Aug. 11, 2009 |
| 7567644 |
Phase-lock loop, method for frequency switching in a phase-lock loop, and use of said phase-lock loop |
Jul. 28, 2009 |
| 7567643 |
Phase lock loop device |
Jul. 28, 2009 |
| 7567132 |
Synthesizer |
Jul. 28, 2009 |
| 7567101 |
Digital PLL circuit |
Jul. 28, 2009 |
| 7567100 |
Input clock detection circuit for powering down a PLL-based system |
Jul. 28, 2009 |
| 7564314 |
Systems and arrangements for operating a phase locked loop |
Jul. 21, 2009 |
| 7564313 |
Phase locked loop for controlling a recording device and method thereof |
Jul. 21, 2009 |
| 7564281 |
Wide-locking range phase locked loop circuit using adaptive post division technique |
Jul. 21, 2009 |
| 7564280 |
Phase locked loop with small size and improved performance |
Jul. 21, 2009 |
| 7561652 |
High frequency spread spectrum clock generation |
Jul. 14, 2009 |
| 7558692 |
Consumption current balance circuit, compensation current amount adjusting method, timing generator, and semiconductor testing apparatus |
Jul. 7, 2009 |
| 7558357 |
Systems and methods for reducing frequency-offset induced jitter |
Jul. 7, 2009 |
| 7557624 |
Fractional digital PLL |
Jul. 7, 2009 |
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