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Class Information
Number: 331/10
Name: Oscillators > Automatic frequency stabilization using a phase or frequency sensing means > Plural a.f.s. for a single oscillator
Description: Subject matter wherein oscillator is provided with two or more A.F.S. means, each having a different effect in tuning the oscillator. For example, one A.F.S. means may provide a coarse tuning control and another A.F.S. means may effect a fine tuning control of the oscillator.
Sub-classes under this class:
Patents under this class:
| Patent Number |
Title Of Patent |
Date Issued |
| 7453323 |
Circuit, control system, IC, transmitting and receiving apparatus, control method and program |
Nov. 18, 2008 |
| 7443257 |
Mechanical oscillator control electronics |
Oct. 28, 2008 |
| 7420427 |
Phase-locked loop with a digital calibration loop and an analog calibration loop |
Sep. 2, 2008 |
| 7411464 |
Systems and methods for mitigating phase jitter in a periodic signal |
Aug. 12, 2008 |
| 7408415 |
Voltage controlled oscillator phase locked loop circuit with loop filter capacitance tuning |
Aug. 5, 2008 |
| 7372337 |
Voltage controlled oscillator comprising an injection pulling compensation circuit |
May. 13, 2008 |
| 7362826 |
Receiver including an oscillation circuit for generating an image rejection calibration tone |
Apr. 22, 2008 |
| 7355482 |
Methods and apparatus for compensating a variable oscillator for process, voltage, and temperature variations using a replica oscillator |
Apr. 8, 2008 |
| 7342460 |
Expanded pull range for a voltage controlled clock synthesizer |
Mar. 11, 2008 |
| 7327196 |
Fast switching phase lock loop (PLL) device and method |
Feb. 5, 2008 |
| 7323942 |
Dual loop PLL, and multiplication clock generator using dual loop PLL |
Jan. 29, 2008 |
| 7317361 |
Ensemble oscillator and related methods |
Jan. 8, 2008 |
| 7315218 |
Method and apparatus to center the frequency of a voltage-controlled oscillator |
Jan. 1, 2008 |
| 7304545 |
High latency timing circuit |
Dec. 4, 2007 |
| 7302026 |
Clock recovery circuit and electronic device using a clock recovery circuit |
Nov. 27, 2007 |
| 7301414 |
PLL circuit, radio-communication equipment and method of oscillation frequency control |
Nov. 27, 2007 |
| 7295077 |
Multi-frequency clock synthesizer |
Nov. 13, 2007 |
| 7288998 |
Voltage controlled clock synthesizer |
Oct. 30, 2007 |
| 7279988 |
Digital frequency locked loop and phase locked loop frequency synthesizer |
Oct. 9, 2007 |
| 7277503 |
Apparatus and method for synchronizing sampling frequency and carrier frequency in a multi-carrier communication system |
Oct. 2, 2007 |
| 7265637 |
Startup/yank circuit for self-biased phase-locked loops |
Sep. 4, 2007 |
| 7253691 |
PLL clock generator circuit and clock generation method |
Aug. 7, 2007 |
| 7242259 |
Active backscatter transponder, communication system comprising the same and method for transmitting data by way of such an active backscatter transponder |
Jul. 10, 2007 |
| 7230497 |
System for controlling frequency of oscillator |
Jun. 12, 2007 |
| 7155190 |
DDS-PLL method for frequency sweep |
Dec. 26, 2006 |
| 7126430 |
PLL circuit |
Oct. 24, 2006 |
| 7078977 |
Fast locking phase-locked loop |
Jul. 18, 2006 |
| 7053727 |
Trimming of a two point phase modulator |
May. 30, 2006 |
| 7023284 |
Dual loop phase locked loop |
Apr. 4, 2006 |
| 7023282 |
Coarse tuning for fractional-N synthesizers having reduced period comparison error |
Apr. 4, 2006 |
| 7015762 |
Reference timing signal apparatus and method |
Mar. 21, 2006 |
| 7015738 |
Direct modulation of a voltage-controlled oscillator (VCO) with adaptive gain control |
Mar. 21, 2006 |
| 7005927 |
Low noise YIG oscillator based phase locked loop |
Feb. 28, 2006 |
| 7003065 |
PLL cycle slip detection |
Feb. 21, 2006 |
| 6980581 |
Adaptive spread spectrum |
Dec. 27, 2005 |
| 6975175 |
Charge pump |
Dec. 13, 2005 |
| 6972632 |
Apparatus for controlling the frequency of received signals to a predetermined frequency |
Dec. 6, 2005 |
| 6956416 |
Powerup control of PLL |
Oct. 18, 2005 |
| 6924705 |
Inject synchronous narrowband reproducible phase locked looped |
Aug. 2, 2005 |
| 6909331 |
Phase locked loop having a forward gain adaptation module |
Jun. 21, 2005 |
| 6894570 |
Fast frequency locking method and architecture realized by employing adaptive asymmetric charge-pump current mechanism |
May. 17, 2005 |
| 6894572 |
Device for producing an oscillator signal |
May. 17, 2005 |
| 6861913 |
Voltage-controlled oscillator with LC resonant circuit |
Mar. 1, 2005 |
| 6809600 |
Dual loop phase lock loops using dual voltage supply regulators |
Oct. 26, 2004 |
| 6798297 |
Method and apparatus for converging a control loop |
Sep. 28, 2004 |
| 6791420 |
Phase locked loop for recovering a clock signal from a data signal |
Sep. 14, 2004 |
| 6791485 |
Digital densitometer using light-to-frequency converter |
Sep. 14, 2004 |
| 6774732 |
System and method for coarse tuning a phase locked loop (PLL) synthesizer using 2-PI slip detection |
Aug. 10, 2004 |
| 6759911 |
Delay-locked loop circuit and method using a ring oscillator and counter-based delay |
Jul. 6, 2004 |
| 6744324 |
Frequency synthesizer using a VCO having a controllable operating point, and calibration and tuning thereof |
Jun. 1, 2004 |
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