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Class Information
Number: 327/114
Name: Miscellaneous active electrical nonlinear devices, circuits, and systems > Signal converting, shaping, or generating > Frequency or repetition rate conversion or control > Of output rectangular waveform
Description: Subject matter including maintaining constant or varying the repetition rate of a continuous series of pulses having negligible transition times and available at a specific circuit location for subsequent utilization.










Sub-classes under this class:

Class Number Class Name Patents
327/115 Frequency division 570
327/116 Frequency multiplication 328


Patents under this class:
1 2 3 4 5

Patent Number Title Of Patent Date Issued
8704557 High-speed non-integer frequency divider circuit Apr. 22, 2014
8587338 Method and apparatus for clocking Nov. 19, 2013
8558497 Reduced electromagnetic interference for pulse-width modulation Oct. 15, 2013
8519753 Frequency doubler/inverter Aug. 27, 2013
8487670 Divide-by-two injection-locked ring oscillator circuit Jul. 16, 2013
8410834 All digital serial link receiver with low jitter clock regeneration and method thereof Apr. 2, 2013
8319531 Multi-phase clock divider circuit Nov. 27, 2012
8269545 Fail safe adaptive voltage/frequency system Sep. 18, 2012
8253447 Apparatus and method for frequency conversion and filter thereof Aug. 28, 2012
8242848 Oscillation frequency control circuit, and DC-DC converter and semiconductor device having the same Aug. 14, 2012
8228098 Pulse width modulation frequency conversion Jul. 24, 2012
8203367 Frequency divider and method for frequency division Jun. 19, 2012
8106687 Spread spectrum clock system and spread spectrum clock generator Jan. 31, 2012
8072255 Quadrature radio frequency mixer with low noise and low conversion loss Dec. 6, 2011
8060766 Microprocessor performance and power optimization through inductive voltage droop monitoring and correction Nov. 15, 2011
8058900 Method and apparatus for clocking Nov. 15, 2011
7999580 Band converted signal generator and band extender Aug. 16, 2011
7928796 Constant voltage boost power supply Apr. 19, 2011
7888978 Frequency synthesizer Feb. 15, 2011
7885353 Spread spectrum block control apparatus and spread spectrum clock generating apparatus Feb. 8, 2011
7876134 Circuit for changing frequency of a signal and frequency change method thereof Jan. 25, 2011
7847602 Digitally controlled frequency generator Dec. 7, 2010
7816954 Circuit configuration of a frequency divider Oct. 19, 2010
7768355 Polyphase numerically controlled oscillator Aug. 3, 2010
7764094 Clocking technique of multi-modulus divider for generating constant minimum on-time Jul. 27, 2010
7705639 Method and apparatus for high performance automatic frequency control in a wireless receiver Apr. 27, 2010
7573305 High speed divider circuit Aug. 11, 2009
7558357 Systems and methods for reducing frequency-offset induced jitter Jul. 7, 2009
7409568 Power supply voltage droop compensated clock modulation for microprocessors Aug. 5, 2008
7405631 Oscillating divider topology Jul. 29, 2008
7327171 Charge pump clock for non-volatile memories Feb. 5, 2008
7236039 Spread spectrum clock generating apparatus Jun. 26, 2007
7225349 Power supply voltage droop compensated clock modulation for microprocessors May. 29, 2007
7209852 Circuit for producing a variable frequency clock signal having a high frequency low jitter pulse component Apr. 24, 2007
7126390 Frequency conversion apparatus Oct. 24, 2006
7106110 Clock dithering system and method during frequency scaling Sep. 12, 2006
7068081 Frequency synthesizer with digital phase selection Jun. 27, 2006
7061293 Spread spectrum clock generating circuit Jun. 13, 2006
7049987 Arrangement for generating a clock signal for a sigma-delta analog-to-digital converter May. 23, 2006
7012454 Clock shift circuit for gradual frequency change Mar. 14, 2006
6998881 Semiconductor integrated circuit device Feb. 14, 2006
6900673 Microcontroller unit May. 31, 2005
6862483 Apparatus for changing pulse width modulation at desired timing Mar. 1, 2005
6847244 Variable duty cycle clock generation circuits and methods and systems using the same Jan. 25, 2005
6809562 Semiconductor integrated circuit device Oct. 26, 2004
6771100 Clock control circuit Aug. 3, 2004
6762629 VCC adaptive dynamically variable frequency clock system for high performance low power microprocessors Jul. 13, 2004
6754837 Programmable stabilization interval for internal stop grant state during which core logic is supplied with clocks and power to minimize stabilization delay Jun. 22, 2004
6501307 Spread-spectrum clock buffer/driver that modulates clock period by switching loads Dec. 31, 2002
6459308 Method and system design with systematic adjustment of individual building blocks for high speed bipolar circuits Oct. 1, 2002

1 2 3 4 5










 
 
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