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Class Information
Number: 331/172
Name: Oscillators > With synchronizing, triggering or pulsing circuits
Description: Oscillators wherein (1) means are provided for maintaining a predetermined phase or frequency relationship between two sources of waves, one source being an excitation or standard source (snyc source) and the other source being the controlled oscillator, or (2) means are provided to initiate or stop oscillation of the oscillator.

Sub-classes under this class:

Class Number Class Name Patents
331/173 Triggering or pulsing (e.g., burst generators) 218

Patents under this class:
1 2 3 4

Patent Number Title Of Patent Date Issued
8689035 Communication system, communication interface, and synchronization method Apr. 1, 2014
8674776 Oscillator circuit, oscillator, electronic apparatus, and activation method oscillator circuit Mar. 18, 2014
8624684 Adaptive current limit oscillator starter Jan. 7, 2014
8570109 Ring oscillator for generating oscillating clock signal Oct. 29, 2013
8570108 Injection-locking a slave oscillator to a master oscillator with no frequency overshoot Oct. 29, 2013
8542069 Method for trimming an adjustable oscillator to match a CAN-bus and a CAN-bus communication controller Sep. 24, 2013
8456246 Quadrature voltage-controlled oscillator and method of providing four-phase output signals Jun. 4, 2013
8446224 Network of tightly coupled performance monitors for determining the maximum frequency of operation of a semiconductor IC May. 21, 2013
8427242 Ultra wideband on-chip pulse generator Apr. 23, 2013
8368480 Phase locked loop circuits and gain calibration methods thereof Feb. 5, 2013
8319567 Two oscillator synchronization system Nov. 27, 2012
8250399 Method and apparatus for clock wander compensation Aug. 21, 2012
8232844 Synchronous oscillator, clock recovery apparatus, clock distribution circuit, and multi-mode injection circuit Jul. 31, 2012
8228126 Multi-band burst-mode clock and data recovery circuit Jul. 24, 2012
8193870 Method and system for compensation of frequency pulling in an all digital phase lock loop Jun. 5, 2012
8102217 Oscillator having feedback path which is capable of supplying reduced voltage potential to oscillation circuit Jan. 24, 2012
8089321 Fluctuation oscillator, fluctuation oscillating system, observation device and control system Jan. 3, 2012
8085103 Resonant oscillator circuit with reduced startup transients Dec. 27, 2011
8085104 Oscillation circuit, driving circuit thereof, and driving method thereof Dec. 27, 2011
8072273 System employing synchronized crystal oscillator-based clock, to be used in either discrete or integrated applications Dec. 6, 2011
8058935 Scalable millimeter wave power source Nov. 15, 2011
8055931 Method for switching between two redundant oscillator signals within an alignment element Nov. 8, 2011
8049570 Coupled bi-stable microcircuit system for ultra-sensitive electrical and magnetic field sensing Nov. 1, 2011
8026771 Driver device, physical quantity measuring device, and electronic instrument Sep. 27, 2011
8001410 Efficient clocking scheme for ultra high-speed systems Aug. 16, 2011
7994870 Tunable filter with gain control circuit Aug. 9, 2011
7949126 Unsplit bipolar pulse forming line May. 24, 2011
7929919 Systems and methods for a PLL-adjusted reference clock Apr. 19, 2011
7902926 Communication system and oscillation signal provision method Mar. 8, 2011
7881894 Method and circuit for local clock generation and smartcard including it thereon Feb. 1, 2011
7791420 Phase-locked loop with start-up circuit Sep. 7, 2010
7786816 Phase controlled oscillator circuit with input signal coupler Aug. 31, 2010
7787575 Method and system for wide-range synchronization to alternating current power signals Aug. 31, 2010
7750748 Method and apparatus for distributing clock signal using standing waves Jul. 6, 2010
7741923 Transistor voltage-controlled oscillator and frequency synthesizer having the same Jun. 22, 2010
7741921 Trigger-mode distributed wave oscillator system Jun. 22, 2010
7671640 Direct injection-locked frequency divider circuit with inductive-coupling feedback architecture Mar. 2, 2010
7656235 Communication system and oscillation signal provision method Feb. 2, 2010
7589586 High frequency signal detection circuit Sep. 15, 2009
7567138 Single-electron injection/extraction device for a resonant tank circuit and method of operation thereof Jul. 28, 2009
7539476 RF-to-baseband receiver architecture May. 26, 2009
7522007 Injection locked frequency divider Apr. 21, 2009
7522008 Injection locker frequency divider Apr. 21, 2009
7446617 Low power consumption frequency divider circuit Nov. 4, 2008
7440568 Bipolar pulse forming line Oct. 21, 2008
7414489 Phase controlled oscillator circuit with input signal coupler Aug. 19, 2008
7394328 Oscillator circuit and test apparatus Jul. 1, 2008
7365615 Method and apparatus for digital synthesis of microwaves Apr. 29, 2008
7307481 Minimum synchronization frequency discriminator Dec. 11, 2007
7268641 Method and apparatus for digital synthesis of microwaves Sep. 11, 2007

1 2 3 4

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