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Class Information
Number: 375/371
Name: Pulse or digital communications > Synchronizers > Phase displacement, slip or jitter correction
Description: Subject matter which corrects for errors in the time of occurrence of transmitted pulses.


Sub-classes under this class:

Class Number Class Name Patents
375/372 Elastic buffer 398
375/373 Phase locking 701


Patents under this class:
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Patent Number Title Of Patent Date Issued
6580773 Method and device for aligning synchronous digital signals Jun. 17, 2003
6570934 Single-end-zero receiver circuit May. 27, 2003
6570946 One-hot decoded phase shift prescaler May. 27, 2003
6567490 Pulse signal delay circuit May. 20, 2003
6563888 Data transmission/reception system and data reception device May. 13, 2003
6560276 Synchronization techniques using an interpolation filter May. 6, 2003
6560304 Apparatus for reducing pattern jitter by using locally symmetry forcing wave generating unit and method using the same May. 6, 2003
6556249 Jitter cancellation technique for video clock recovery circuitry Apr. 29, 2003
6556583 Communication system and communication control method Apr. 29, 2003
6539070 Clock synchronizing circuit Mar. 25, 2003
6539072 Delay locked loop circuitry for clock delay adjustment Mar. 25, 2003
6535044 Clock signal generator Mar. 18, 2003
6535565 Receiver rate converter phase calculation apparatus and method Mar. 18, 2003
6535566 Demodulating method and receiver apparatus Mar. 18, 2003
6531927 Method to make a phase-locked loop's jitter transfer function independent of data transition density Mar. 11, 2003
6532257 Method for performing phase comparison, and phase comparator Mar. 11, 2003
6529570 Data synchronizer for a multiple rate clock source and method thereof Mar. 4, 2003
6526069 Synchronization device for a synchronous digital message transmission system and process for producing a synchronous output signal Feb. 25, 2003
6526108 Method for buffering the jitter processing of vocoder Feb. 25, 2003
6526109 Method and apparatus for hybrid smart center loop for clock data recovery Feb. 25, 2003
6522696 Adaptive frequency correction in a wireless communications system, such as for GSM and IS54 Feb. 18, 2003
6522706 Delay spread estimation for multipath fading channels Feb. 18, 2003
6516006 Self-adjusting clock phase controlled architecture Feb. 4, 2003
6510013 Phase-synchronization method and circuit for establishing a phase-synchronization for signals with reduced time Jan. 21, 2003
6510191 Direct digital synthesizer based on delay line with sorted taps Jan. 21, 2003
6501811 Sampling system Dec. 31, 2002
6498823 Variable rate modulator Dec. 24, 2002
6480475 Method and system for accomodating a wide range of user data rates in a multicarrier data transmission system Nov. 12, 2002
6473470 Phase-locked loop circuits for communication system Oct. 29, 2002
6469620 Method and apparatus for protecting a transmission path between a base unit and a mobile key unit Oct. 22, 2002
6466589 Apparatus for verifying data integrity and synchronizing ATM cell data format for processing Oct. 15, 2002
6466635 Process and device for generating a clock signal Oct. 15, 2002
6463109 Multiple channel adaptive data recovery system Oct. 8, 2002
6459746 Multi-pair gigabit ethernet transceiver Oct. 1, 2002
6460001 Apparatus for and method of measuring a peak jitter Oct. 1, 2002
6449291 Method and apparatus for time synchronization in a communication system Sep. 10, 2002
6446152 System and method for multi-coupling digital signals and a backplane data bus with multi-coupling of digital signals Sep. 3, 2002
6438186 Carrier phase derived symbol timing Aug. 20, 2002
6434205 Digital broadcast receiver using weighted sum of channel impulse response data to adjust sampling window Aug. 13, 2002
6430235 Non-data-aided feedforward timing synchronization method Aug. 6, 2002
6430242 Initialization system for recovering bits and group of bits from a communications channel Aug. 6, 2002
6426985 Variable delay circuit and phase adjustment circuit Jul. 30, 2002
6404833 Digital phase synchronizing apparatus Jun. 11, 2002
6400129 Apparatus for and method of detecting a delay fault in a phase-locked loop circuit Jun. 4, 2002
6396887 Apparatus and method for generating a distributed clock signal using gear ratio techniques May. 28, 2002
6393083 Apparatus and method for hardware implementation of a digital phase shifter May. 21, 2002
6384772 Wideband phase locking of low offset frequency sources May. 7, 2002
6385264 Method and apparatus for mitigating interference between base stations in a wideband CDMA system May. 7, 2002
6385267 System and method for locking disparate video formats May. 7, 2002
6377642 System for clock recovery Apr. 23, 2002

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