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Class Information
Number: 331/25
Name: Oscillators > Automatic frequency stabilization using a phase or frequency sensing means > With reference oscillator or source > Signal or phase comparator
Description: Subject matter wherein a particular or significant signal or phase comparing network is utilized in the A.F.S. loop of the controlled oscillator.
Sub-classes under this class:
Patents under this class:
| Patent Number |
Title Of Patent |
Date Issued |
| 7619483 |
Asynchronous phase acquisition unit with dithering |
Nov. 17, 2009 |
| 7616069 |
Method and system for fast PLL close-loop settling after open-loop VCO calibration |
Nov. 10, 2009 |
| 7616065 |
System and method for charge-pump with phase-frequency detection capability |
Nov. 10, 2009 |
| 7612625 |
Bang-bang architecture |
Nov. 3, 2009 |
| 7612619 |
Phase detector device and method thereof |
Nov. 3, 2009 |
| 7612617 |
Voltage-controlled oscillator gain calibration for two-point modulation in a phase-locked loop |
Nov. 3, 2009 |
| 7605667 |
Frequency synthesizer with a harmonic locked phase/frequency detector |
Oct. 20, 2009 |
| 7605666 |
High frequency digital oscillator-on-demand with synchronization |
Oct. 20, 2009 |
| 7605665 |
Fractional-N phase locked loop |
Oct. 20, 2009 |
| 7605662 |
Oscillator controller incorporating a voltage-controlled oscillator that outputs an oscillation signal at a desired oscillation frequency |
Oct. 20, 2009 |
| 7603095 |
Apparatus and method of switching intervals |
Oct. 13, 2009 |
| 7599462 |
Hybrid analog/digital phase-lock loop with high-level event synchronization |
Oct. 6, 2009 |
| 7596052 |
Method and apparatus for reducing oscillation in synchronous circuits |
Sep. 29, 2009 |
| 7595699 |
Look loop circuit and method having improved lock time |
Sep. 29, 2009 |
| 7595698 |
PLL lock time reduction |
Sep. 29, 2009 |
| 7593496 |
Phase interpolator |
Sep. 22, 2009 |
| 7592874 |
Phase/frequency detector, phase locked loop, method for phase/frequency detection and method for generating an oscillator signal |
Sep. 22, 2009 |
| 7589597 |
Ultra wideband and fast hopping frequency synthesizer for MB-OFDM wireless application |
Sep. 15, 2009 |
| 7589586 |
High frequency signal detection circuit |
Sep. 15, 2009 |
| 7586378 |
Method and system for using a frequency locked loop logen in oscillator systems |
Sep. 8, 2009 |
| 7583152 |
Phase-locked loop with self-correcting phase-to-digital transfer function |
Sep. 1, 2009 |
| 7579916 |
Low noise frequency synthesizer |
Aug. 25, 2009 |
| 7573348 |
Arrangement and method for determining a gradient factor for a digitally controlled oscillator, and phase locked loop |
Aug. 11, 2009 |
| 7570124 |
Low power frequency division and local oscillator generation |
Aug. 4, 2009 |
| 7564315 |
System and method for pre-charged linear phase-frequency detector |
Jul. 21, 2009 |
| 7564313 |
Phase locked loop for controlling a recording device and method thereof |
Jul. 21, 2009 |
| 7551039 |
Phase adjustment in phase-locked loops using multiple oscillator signals |
Jun. 23, 2009 |
| 7548123 |
Dividerless PLL architecture |
Jun. 16, 2009 |
| 7545223 |
PLL circuit |
Jun. 9, 2009 |
| 7541883 |
Coaxial resonator based voltage controlled oscillator/phased locked loop synthesizer module |
Jun. 2, 2009 |
| 7538706 |
Mash modulator and frequency synthesizer using the same |
May. 26, 2009 |
| 7538625 |
Method and enhanced phase locked loop circuits for implementing effective testing |
May. 26, 2009 |
| 7538623 |
Phase locked loop modulator calibration techniques |
May. 26, 2009 |
| 7528638 |
Clock signal distribution with reduced parasitic loading effects |
May. 5, 2009 |
| 7525393 |
Digital frequency multiplier circuit |
Apr. 28, 2009 |
| 7518455 |
Delta-sigma modulated fractional-N PLL frequency synthesizer |
Apr. 14, 2009 |
| 7515002 |
Frequency synthesizer for dual mode receiver |
Apr. 7, 2009 |
| 7508278 |
Asymmetry triangular frequency modulation profiles for spread spectrum clock generations |
Mar. 24, 2009 |
| 7508277 |
Phase-locked loop with VCO tuning sensitivity compensation |
Mar. 24, 2009 |
| 7508275 |
Indirect analog synthesizer utilizing direct analog fractional frequency multiplier approach |
Mar. 24, 2009 |
| 7504890 |
Data-directed frequency-and-phase lock loop |
Mar. 17, 2009 |
| 7501902 |
Phase-locked loop circuit and data reproduction apparatus |
Mar. 10, 2009 |
| 7498887 |
High frequency digital oscillator-on-demand with synchronization |
Mar. 3, 2009 |
| 7498884 |
Self calibrating RC oscillator |
Mar. 3, 2009 |
| 7495517 |
Techniques for dynamically adjusting the frequency range of phase-locked loops |
Feb. 24, 2009 |
| 7492850 |
Phase locked loop apparatus with adjustable phase shift |
Feb. 17, 2009 |
| 7489203 |
Noise tolerant phase locked loop |
Feb. 10, 2009 |
| 7486148 |
Controllable oscillator with output oscillation adjustment and method for producing an output oscillation for use therewith |
Feb. 3, 2009 |
| 7471159 |
Phase-locked loop for stably adjusting frequency-band of voltage-controlled oscillator and phase locking method |
Dec. 30, 2008 |
| 7471158 |
Automatic switching phase-locked loop |
Dec. 30, 2008 |
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