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Class Information
Number: 331/1A
Name: Oscillators > Automatic frequency stabilization using a phase or frequency sensing means > Afc with logic elements
Description:
Patents under this class:
| Patent Number |
Title Of Patent |
Date Issued |
| 7616064 |
Digital synthesizer for low power location receivers |
Nov. 10, 2009 |
| 7616063 |
Frequency synthesizer using a phase-locked loop and single side band mixer |
Nov. 10, 2009 |
| 7605667 |
Frequency synthesizer with a harmonic locked phase/frequency detector |
Oct. 20, 2009 |
| 7605665 |
Fractional-N phase locked loop |
Oct. 20, 2009 |
| 7605661 |
Phase locked loop circuit including digital voltage-controlled oscillator, ring oscillator and selector |
Oct. 20, 2009 |
| 7602252 |
Sigma delta modulator, fractional frequency synthesizer and sigma delta modulating method |
Oct. 13, 2009 |
| 7592874 |
Phase/frequency detector, phase locked loop, method for phase/frequency detection and method for generating an oscillator signal |
Sep. 22, 2009 |
| 7589594 |
Variable loop bandwidth phase locked loop |
Sep. 15, 2009 |
| 7583152 |
Phase-locked loop with self-correcting phase-to-digital transfer function |
Sep. 1, 2009 |
| 7573348 |
Arrangement and method for determining a gradient factor for a digitally controlled oscillator, and phase locked loop |
Aug. 11, 2009 |
| 7573337 |
Code NCO and GPS receiver |
Aug. 11, 2009 |
| 7570120 |
Multichannel memory-based numerically controlled oscillators |
Aug. 4, 2009 |
| 7567134 |
System and method for synchronizing multiple oscillators |
Jul. 28, 2009 |
| 7567132 |
Synthesizer |
Jul. 28, 2009 |
| 7564315 |
System and method for pre-charged linear phase-frequency detector |
Jul. 21, 2009 |
| 7564314 |
Systems and arrangements for operating a phase locked loop |
Jul. 21, 2009 |
| 7560996 |
Frequency-multiplied clock signal output circuit |
Jul. 14, 2009 |
| 7557663 |
Digital PLL for a system-on-chip for digital control of electronic power devices |
Jul. 7, 2009 |
| 7557661 |
Direct digital synthesis (DDS) hybrid phase-lock loop for low-jitter synchronization |
Jul. 7, 2009 |
| 7554414 |
Fast starting circuit for crystal oscillators |
Jun. 30, 2009 |
| 7551039 |
Phase adjustment in phase-locked loops using multiple oscillator signals |
Jun. 23, 2009 |
| 7548130 |
Characteristic automatic compensating apparatus, characteristic automatic compensating method, characteristic automatic compensating program of oscillator and positioning signal receiver |
Jun. 16, 2009 |
| 7548123 |
Dividerless PLL architecture |
Jun. 16, 2009 |
| 7548119 |
Digitally controlled oscillator with jitter shaping capability |
Jun. 16, 2009 |
| 7545223 |
PLL circuit |
Jun. 9, 2009 |
| 7545222 |
Phase lock loop for rapid lock-in and method therefor |
Jun. 9, 2009 |
| 7541880 |
Circuit and method for glitch correction |
Jun. 2, 2009 |
| 7541877 |
Auto-adjusting high accuracy oscillator |
Jun. 2, 2009 |
| 7538706 |
Mash modulator and frequency synthesizer using the same |
May. 26, 2009 |
| 7538619 |
Oscillator reducing clock signal variations due to variations in voltage or temperature |
May. 26, 2009 |
| 7532077 |
Edge alignment for frequency synthesizers |
May. 12, 2009 |
| 7528664 |
Method of and apparatus for improving the signal-to-noise ratio for a digital conversion circuit |
May. 5, 2009 |
| 7522005 |
K.sub.FM frequency tracking system using an analog correlator |
Apr. 21, 2009 |
| 7511581 |
Wide-band multimode frequency synthesizer and variable frequency divider |
Mar. 31, 2009 |
| 7508274 |
PLL with phase clipping and resynchronization |
Mar. 24, 2009 |
| 7508271 |
Semiconductor memory apparatus having phase locked loop |
Mar. 24, 2009 |
| 7508270 |
Differential-to-single-ended converter and phase-locked loop circuit having the same |
Mar. 24, 2009 |
| 7504891 |
Initialization circuit for a phase-locked loop |
Mar. 17, 2009 |
| 7504890 |
Data-directed frequency-and-phase lock loop |
Mar. 17, 2009 |
| 7501900 |
Phase-locked loop bandwidth calibration |
Mar. 10, 2009 |
| 7498890 |
Continuous reversible gear shifting mechanism |
Mar. 3, 2009 |
| 7486146 |
Loop system capable of auto-calibrating oscillating frequency range and related method |
Feb. 3, 2009 |
| 7486145 |
Circuits and methods for implementing sub-integer-N frequency dividers using phase rotators |
Feb. 3, 2009 |
| 7482885 |
Method of frequency synthesis for fast switching |
Jan. 27, 2009 |
| 7482880 |
Frequency modulated output clock from a digital frequency/phase locked loop |
Jan. 27, 2009 |
| 7477112 |
Structure for the main oscillator of a counter-controlled delay line |
Jan. 13, 2009 |
| 7471160 |
Real-time frequency band selection circuit for use with a voltage controlled oscillator |
Dec. 30, 2008 |
| 7466207 |
Gain calibration of a digital controlled oscillator |
Dec. 16, 2008 |
| 7463710 |
Fractional-N synthesizer and method of programming the output phase |
Dec. 9, 2008 |
| 7449960 |
Frequency modulation linearization system for a Fractional-N offset PLL |
Nov. 11, 2008 |
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