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Class Information
Number: 375/354
Name: Pulse or digital communications > Synchronizers
Description: Subject matter for synchronizing the operation of the receiving and transmitting mechanisms.


Sub-classes under this class:

Class Number Class Name Patents
375/358 Feedback, receiver to transmitter 246
375/362 Frequency or phase control using synchronizing signal 549
375/356 Network synchronizing more than two stations 710
375/371 Phase displacement, slip or jitter correction 1,399
375/359 Self-synchronizing signal (self-clocking codes, etc.) 307
375/357 Synchronization failure prevention 376
375/355 Synchronizing the sampling time of digital data 1,028


Patents under this class:
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Patent Number Title Of Patent Date Issued
6516039 Digital audio broadcast receiver acquiring frame synchronization quickly in the presence of noise Feb. 4, 2003
6501810 Fast frame synchronization Dec. 31, 2002
6498822 Frequency and timing synchronization circuit making use of a chirp signal Dec. 24, 2002
6487257 Signal noise reduction by time-domain spectral subtraction using fixed filters Nov. 26, 2002
6480558 Synchronization and cell search methods and apparatus for wireless communications Nov. 12, 2002
6476990 General purpose digital read channel architecture Nov. 5, 2002
6473468 Data transmission device Oct. 29, 2002
6473476 Method and apparatus for providing deterministic resets for clock divider systems Oct. 29, 2002
6473607 Communication device with a self-calibrating sleep timer Oct. 29, 2002
6470462 Simultaneous resynchronization by command for state machines in redundant systems Oct. 22, 2002
6463092 System and method for sending and receiving data signals over a clock signal line Oct. 8, 2002
6459744 Multi-carrier symbol synchronization Oct. 1, 2002
6456676 Clock signal distribution and synchronization Sep. 24, 2002
6456677 Synchronization equipment Sep. 24, 2002
6452976 Data transfer circuit with reduced current consumption Sep. 17, 2002
6452986 Detector tolerant of frequency misalignment Sep. 17, 2002
6448910 Method and apparatus for convolution encoding and viterbi decoding of data that utilize a configurable processor to configure a plurality of re-configurable processing elements Sep. 10, 2002
6449220 Network subscriber station having a feature that prevents inaccuracies in time messages Sep. 10, 2002
6449316 Communication device and interference rejection method therein Sep. 10, 2002
6442223 Method and system for data transfer Aug. 27, 2002
6442224 Mixing and separating method for a plurality signals Aug. 27, 2002
6438178 Integrated circuit for receiving a data stream Aug. 20, 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
6434361 Synchronization burst processor for a processing satellite Aug. 13, 2002
6430148 Multidirectional communication systems Aug. 6, 2002
6430242 Initialization system for recovering bits and group of bits from a communications channel Aug. 6, 2002
6424687 Method and device for alignment of audio data frames using interpolation and decimation Jul. 23, 2002
6424688 Method to transfer data in a system with multiple clock domains using clock skipping techniques Jul. 23, 2002
6421401 Method and apparatus for achieving and maintaining symbol synchronization particularly in an OFDM system Jul. 16, 2002
6421404 Phase-difference detector and clock-recovery circuit using the same Jul. 16, 2002
6404357 Digital/analogue communication system for increasing transfer efficiency of digital sample data Jun. 11, 2002
6404834 Segmented spectrum clock generator apparatus and method for using same Jun. 11, 2002
6400706 System and method for re-synchronizing a phase-independent first-in first-out memory Jun. 4, 2002
6400754 Spread spectrum localizers Jun. 4, 2002
6400783 Method and apparatus for transmission and reception of digital signals and estimation of communication channels Jun. 4, 2002
6396887 Apparatus and method for generating a distributed clock signal using gear ratio techniques May. 28, 2002
6393080 Apparatus comprising clock control circuit and device using internal clock signal synchronized to external clock signal May. 21, 2002
6393081 Plural circuit selection using role reversing control inputs May. 21, 2002
6393502 System and method for initiating a serial data transfer between two clock domains May. 21, 2002
6389087 Apparatus and method for synchronization in a multiple-carrier communication system by observing energy within a guard band May. 14, 2002
6381251 Data transmission apparatus and receiving apparatus using orthogonal frequency division multiplex modulation system Apr. 30, 2002
6377639 Method, system, and apparatus for unambiguous phase synchronization Apr. 23, 2002
6377640 Means and method for a synchronous network communications system Apr. 23, 2002
6377641 Reproduction apparatus and reproduction method Apr. 23, 2002
6377642 System for clock recovery Apr. 23, 2002
6373861 Frequency synchronizing device for OFDM/CDMA system Apr. 16, 2002
6370160 Base to handset epoch synchronization in multi-line wireless telephone Apr. 9, 2002
6370200 Delay adjusting device and method for plural transmission lines Apr. 9, 2002
6366610 Autobauding with adjustment to a programmable baud rate Apr. 2, 2002

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