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Class Information
Number: 327/155
Name: Miscellaneous active electrical nonlinear devices, circuits, and systems > Signal converting, shaping, or generating > Synchronizing > With feedback
Description: Subject matter wherein a portion of the circuit output is returned to an input.










Sub-classes under this class:

Class Number Class Name Patents
327/156 Phase lock loop 2,442


Patents under this class:
1 2 3 4 5

Patent Number Title Of Patent Date Issued
8710881 PLL circuit Apr. 29, 2014
8704561 Delay locked loop Apr. 22, 2014
8664983 Priority control phase shifts for clock signals Mar. 4, 2014
8664985 Phase frequency detector and charge pump for phase lock loop fast-locking Mar. 4, 2014
8634503 Fast lock clock-data recovery for phase steps Jan. 21, 2014
8634511 Digital phase frequency detector, digital phase locked loop including the same and method of detecting phase and frequency of output signal Jan. 21, 2014
8593186 Control signal generator for use with a command decoder Nov. 26, 2013
8587351 Method for synchronizing sampling to sinusoidal inputs Nov. 19, 2013
8570078 CDR circuit Oct. 29, 2013
8552772 Loop filter buffer with level shifter Oct. 8, 2013
8542552 DLL circuit, frequency-multiplication circuit, and semiconductor memory device Sep. 24, 2013
8542042 Phase-locked loop architecture and clock distribution system Sep. 24, 2013
8536822 Voltage-controlled stepper motor driver Sep. 17, 2013
8531217 Fractional-N frequency synthesizer having reduced fractional switching noise Sep. 10, 2013
8508265 Differential controlled phase locked loop circuit Aug. 13, 2013
8466726 Duty cycle correction systems and methods Jun. 18, 2013
8450991 Charge recycling a 1 of N NDL gate with a time varying power supply May. 28, 2013
8451969 Apparatus, system, and method for timing recovery May. 28, 2013
8451970 Variable delay circuit and delay-locked loop including the same May. 28, 2013
8446942 Waveform equalization circuit and waveform equalization method May. 21, 2013
8446190 Frequency divider, frequency synthesizer and application circuit May. 21, 2013
8427219 Clock generator and a method of generating a clock signal Apr. 23, 2013
8368449 Dead zone detection for phase adjustment Feb. 5, 2013
8358729 Baseband phase-locked loop Jan. 22, 2013
8340790 Methods and apparatus to adjust control loop timing in a process control system Dec. 25, 2012
8310294 Low-power clock generation and distribution circuitry Nov. 13, 2012
8269534 Delay locked loop circuit and semiconductor device having the delay locked loop circuit Sep. 18, 2012
8258831 Method and apparatus for clock generator lock detector Sep. 4, 2012
8258830 Methods for calibrating gated oscillator and oscillator circuit utilizing the same Sep. 4, 2012
8253500 Frequency-phase adjusting device and method thereof Aug. 28, 2012
8237475 Techniques for generating PVT compensated phase offset to improve accuracy of a locked loop Aug. 7, 2012
8174297 Multi-phase clock generation May. 8, 2012
8143928 Duty cycle correction systems and methods Mar. 27, 2012
8045610 MMSE-DFE equalization with antenna diversity for mobile DTV Oct. 25, 2011
8026747 Apparatus and method for multi-phase clock generation Sep. 27, 2011
8008954 Multi-phase signal generator and method Aug. 30, 2011
8000430 Wide frequency range delay locked loop Aug. 16, 2011
7949080 Phase adjusting function evaluating method, transmission margin measuring method, information processing apparatus and computer readable information recording medium May. 24, 2011
7944261 Method and apparatus for detecting clock loss May. 17, 2011
7940099 Method of improving noise characteristics of an ADPLL and a relative ADPLL May. 10, 2011
7940103 Duty cycle correction systems and methods May. 10, 2011
7932755 Phase synchronization for wide area integrated circuits Apr. 26, 2011
7919989 Circuit architecture for effective compensating the time skew of circuit Apr. 5, 2011
7911245 Multi-phase signal generator and method Mar. 22, 2011
7884654 Circuit arrangement and method for controlling an electrical load Feb. 8, 2011
7849348 Programmable delay clock buffer Dec. 7, 2010
7839220 Phase-locked loop runaway detector Nov. 23, 2010
7835205 Delay stage-interweaved analog DLL/PLL Nov. 16, 2010
7825704 Threshold personalization testmode Nov. 2, 2010
7816965 Cooperation circuit Oct. 19, 2010

1 2 3 4 5










 
 
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