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Class Information
Number: 327/31
Name: Miscellaneous active electrical nonlinear devices, circuits, and systems > Specific signal discriminating (e.g., comparing, selecting, etc.) without subsequent control > By pulse width or spacing
Description: Subject matter wherein the input signal parameter is (a) a time interval between a leading edge and a trailing edge of a single pulse or (b) a time interval between a trailing edge and a leading edge of two consecutive pulses.










Sub-classes under this class:

Class Number Class Name Patents
327/37 Comparison by threshold or reference 111
327/34 Narrow pulse elimination or suppression 171
327/36 Selection of a particular pulse width 63
327/35 Separating by duration or gap (e.g., duty cycle, etc.) 61
327/38 With plural paths 36
327/33 With sampling 49
327/32 With shock-excited circuit 5


Patents under this class:
1 2 3 4 5 6

Patent Number Title Of Patent Date Issued
8648698 Method and system for radio frequency identification tag using reduced set communication protocol Feb. 11, 2014
8638151 Variable frequency ratiometric multiphase pulse width modulation generation Jan. 28, 2014
8588270 Architecture for ultra-wideband radio Nov. 19, 2013
8558579 Digital glitch filter Oct. 15, 2013
8509318 Multiple-channel transmission over a single-wire bus Aug. 13, 2013
8456195 System and method for on-chip jitter and duty cycle measurement Jun. 4, 2013
8432208 Maintaining pulse width modulation data-set coherency Apr. 30, 2013
8351483 Architecture for ultra-wideband radio Jan. 8, 2013
8315302 Pulse width modulator using interpolator Nov. 20, 2012
8284830 Pulse edge demodulation Oct. 9, 2012
8218704 Demodulation method and demodulator of pulse-edge shifted pulse Jul. 10, 2012
8159272 System and method for on-chip jitter and duty cycle measurement Apr. 17, 2012
8125354 Complex switch control system Feb. 28, 2012
8120403 Duty detection circuit Feb. 21, 2012
8058932 Digital pulse width modulation device Nov. 15, 2011
7961023 Pulse width modulation sequence maintaining maximally flat voltage during current transients Jun. 14, 2011
7933325 Antenna driving apparatus Apr. 26, 2011
7881397 Wireless communication system Feb. 1, 2011
7830180 Noise protector Nov. 9, 2010
7778324 System for dynamic time offsetting in interleaved power amplifiers Aug. 17, 2010
7733248 Measuring and regenerating a variable pulse width Jun. 8, 2010
7719336 Pulse width modulation sequence maintaining maximally flat voltage during current transients May. 18, 2010
7705651 Delay circuit of semiconductor memory apparatus Apr. 27, 2010
7643981 Pulse waveform timing in EinsTLT templates Jan. 5, 2010
7627053 Apparatus and method for driving a pulse width modulation reference signal Dec. 1, 2009
7612593 Duty detection circuit Nov. 3, 2009
7508873 Digital amplifier, pulse width modulator thereof and method for reducing pop noise for the same Mar. 24, 2009
7504865 Frequency sensor and semiconductor device Mar. 17, 2009
7495428 Pulse generator, timing generator, and pulse width adjusting method Feb. 24, 2009
7426239 Method and transmission apparatus for transmitting a bivalent signal Sep. 16, 2008
7400282 Quantum turing machine Jul. 15, 2008
7266039 Circuitry and method for adjusting signal length Sep. 4, 2007
7256632 Pulse width modulation (PWM) controlling module and method for adjusting a PWM signal thereof Aug. 14, 2007
7233618 Circuit configuration and method for transmitting digital signals Jun. 19, 2007
7227387 Measuring pulse edge delay value relative to a clock using multiple delay devices to address a memory to access the delay value Jun. 5, 2007
7200187 Modulator for digital amplifier Apr. 3, 2007
7053667 Single wire digital interface May. 30, 2006
6940325 DLL circuit Sep. 6, 2005
6930526 Quasi-feedforward PWM modulator Aug. 16, 2005
6925170 Wire-bound telecommunication device and a circuit for use in such a device Aug. 2, 2005
6859912 Method and circuit arrangement for clock recovery Feb. 22, 2005
6650403 Distance measuring device for a vehicle Nov. 18, 2003
6573759 Apparatus and method for extracting data values from a signal encoded with AES3 data Jun. 3, 2003
6532260 Pulse transmission device for use in long-distance communication Mar. 11, 2003
6469544 Device for detecting abnormality of clock signal Oct. 22, 2002
6392459 Gate signal generating circuit, semiconductor evaluation apparatus, and semiconductor evaluating method May. 21, 2002
6393069 Circuit and method for compensating for degradation in pulse width of burst data May. 21, 2002
6389548 Pulse run-length measurement for HF data signal by dividing accumulated phase difference between first and second zero-crossings by single-cycle range using multiple cycle range sawtooth wavef May. 14, 2002
6262600 Isolator for transmitting logic signals across an isolation barrier Jul. 17, 2001
6108528 Receive squelch circuit having function of detecting pulse width Aug. 22, 2000

1 2 3 4 5 6










 
 
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