Patents
Sitemap › H04 - Electric communication technique › H04J - Multiplex communication › H04J 3 - Time-division multiplex systems
Patents for H04J 3 - Time-division multiplex systems (63,408)
05/1991
05/28/1991US5020053 Channel access system
05/28/1991US5020023 Automatic vernier synchronization of skewed data streams
05/25/1991WO1991008623A1 Passive optical network
05/22/1991EP0428407A2 An integrated communications link having dynamically allocatable bandwidth and a protocol for transmission of allocation information over the link
05/22/1991CN1051646A Method of cross-connecting stm-1-sigral in multichannel multiplying series
05/21/1991US5018142 Technique for organizing and coding serial binary data from a plurality of data lines for transmission over a single transmission line
05/21/1991US5018141 Circuit for separating voice, data and signaling information
05/21/1991US5018140 Reframe circuit in a synchronous multiplexing device
05/21/1991US5018136 Multiplexed digital packet telephone system
05/21/1991US5018135 Add drop multiplexer
05/21/1991US5018132 SONET 4h byte receiver and filter
05/21/1991US5017801 Method and apparatus for converting a gap-infested read-in clock into a gap-free read-out clock
05/18/1991WO1991007830A1 Clock dejitter circuits for regenerating jittered clock signals
05/16/1991WO1991007031A1 Controller bus system for a programmable flexible digital signal multiplexer
05/16/1991WO1991007030A1 Distributed synchronization method for a wireless fast packet communication system
05/16/1991DE3937967A1 Frame synchroniser for PCM multiplex signals - has frame characteristic word detector for each PCM multiplex signal, with recognition output signal
05/16/1991CA2029850A1 Integrated communications link having dynamically allocatable bandwidth and a protocol for transmission of allocation information over the link
05/15/1991EP0426894A1 Method for fast synchronisation with the utilisation of error correcting coding
05/14/1991US5016248 Buffer memory device for packet data and method of controlling the device
05/14/1991US5016247 Multihop time assigned speech interpolation (TASI) system for telecommunication networks
05/14/1991US5016246 Digital telephone system circuits
05/14/1991US5016206 Unique word detection system
05/14/1991US5015872 Method and circuit arrangement for generating a phase shifted clock pulse signal
05/08/1991EP0426623A2 A process and a device for speed adaptation for integrated services digital network (ISDN)
05/08/1991EP0426452A2 Battery saving system for interrupting power supplies at intervals variable with traffic pattern
05/08/1991EP0425964A2 Asynchronous voice reconstruction for a digital communication system
05/08/1991EP0425871A2 Fiber optic telecommunication system employing continuous downlink, burst uplink transmission format with preset uplink guard band
05/08/1991EP0425851A2 Apparatus for decoding frames from a data link
05/08/1991EP0425732A1 Passive optical telecommunicationsystem
05/08/1991EP0425731A1 Controller-bus system for a programmable, flexible digital signal multiplexer
05/07/1991US5014344 Method for synchronizing the transmissions in a simulcast transmission system
05/07/1991US5014272 Frame synchronizer for detecting misframes with different shift patterns
05/07/1991US5014271 Pulse insertion circuit
05/07/1991US5014270 Device for synchronizing a pseudo-binary signal with a regenerated clock signal having phase jumps
05/07/1991US5014261 System for switching from working units to stand-by units
05/03/1991CA2025193A1 Method of providing reserved bandwidth in a dual bus system
05/02/1991WO1991001602A3 Device for forming cells using digitized signals and device for associated multiplex transmission
05/02/1991EP0425470A2 Method for transmitting binary information in an optical transmission network and optical transmission network
05/02/1991EP0425046A1 Method and device for transmitting a string of M binary words, each of "p" binary elements
05/02/1991EP0424774A2 Clock distribution system and technique
05/01/1991CN1012548B Apparatus and method for obtaining frequency agility in digital communication system
04/1991
04/30/1991US5012493 Phase difference-adjusting circuit
04/30/1991US5012469 Adaptive hybrid multiple access protocols
04/24/1991EP0423942A2 Synchronous network
04/24/1991EP0278949B1 Adaptive rate multiplexer-demultiplexer
04/24/1991CN1050960A Device for evaluating and/or regulating throughput of virtual circuits on asynchronous time-division multiplex transmission channel
04/24/1991CN1050959A Data receiver interface circuit
04/23/1991US5010559 System for synchronizing data frames in a serial bit stream
04/23/1991US5010549 Packet data generator
04/23/1991US5010544 Fault location operating system with loopback
04/19/1991WO1991006157A1 Optical receiver
04/18/1991WO1991005431A1 Voice data discriminator
04/18/1991WO1990011675A3 Mixed modulation level communication system
04/17/1991EP0422443A2 Multiplexer and demultiplexer, especially for information transmission networks with a synchronous hierarchy of digital signals
04/16/1991US5008900 Subscriber unit for wireless digital subscriber communication system
04/16/1991CA1283229C High speed scrambling at lower clock speeds
04/10/1991EP0421934A2 Method for information transmission between PCM highways
04/10/1991EP0421515A1 Circuit for channel specific processing of a multichannel inputsignal
04/09/1991US5007088 Scrambling/descrambling method using a memory for storing initial pseudo-random bit patterns respectively for submultiframes
04/09/1991US5007070 Service clock recovery circuit
04/09/1991US5007045 Integrated communications system for HDLC variable-length data packets and fixed-length voice/video packets
04/09/1991US5007042 Method and apparatus for transmitting analog data embedded in a digital pulse train
04/09/1991CA1282882C Frame checking arrangement for duplex time multiplexed reframing circuitry
04/03/1991EP0420192A2 Unique word detection apparatus
04/03/1991EP0419895A2 Clocksupply for multiplexsystems
04/03/1991EP0419805A2 Parallel architecture for high speed flag detection and packet identification
04/02/1991US5005191 System for synchronizing data frame groups in a serial bit stream
04/02/1991US5005171 Telecommunication transmission format suited for network-independent timing environments
04/02/1991US5005170 Multi-rate multiplexing arrangement efficiently utilizing multiplexed channel bandwidth
03/1991
03/28/1991CA2026139A1 Clock supply for multiplex systems
03/27/1991EP0419267A1 Signal sensing and measuring in fibre optic systems
03/27/1991EP0418851A2 ISDN D-channel interface
03/26/1991US5003599 In-band framing method and apparatus
03/26/1991US5003560 Receiving counter phase synchronization circuit of the synchronous transmission system
03/26/1991US5003558 Data synchronizing buffers for data processing channels
03/26/1991US5003534 Link utilization control mechanism for demand assignment satellite communications network
03/26/1991CA1282149C Asynchronous time division communication system
03/21/1991WO1991003894A1 Signalling information multiplexer
03/20/1991EP0417918A2 Data receiver interface circuit
03/19/1991US5001730 Clock synchronization algorithm for address independent networks
03/19/1991US5001711 Complex multiplexer/demultiplexer apparatus
03/19/1991US5001709 Communication system and apparatus
03/19/1991US5001708 Sonet H4 byte generator
03/19/1991US5001707 Method of providing reserved bandwidth in a dual bus system
03/19/1991US5001703 Spectrally efficient TDM duplex communication system
03/19/1991CA1281822C Subsidiary station capable of automatically adjusting an internal delay in response to a number signal received in a downward signal by the subsidiary station
03/12/1991US4999832 Broadband multirate switching architecture
03/06/1991EP0415112A2 Cross-connection method for STM-1 signals of the synchronous-digital multiplexhierarchy
03/05/1991WO1991003901A1 Time-division multiplex data relay exchange system
03/05/1991US4998249 Method and system for multiplexing telephone line circuits to highway lines
03/05/1991US4998242 Virtual tributary cross connect switch and switch network utilizing the same
03/05/1991CA1281144C Multiplexing apparatus having bsi-code processing and bit interleave functions
03/05/1991CA1281109C Method for zero byte time slot interchange
03/05/1991CA1281108C Method for zero byte time slot interchange
03/05/1991CA1281107C Method for zero byte time slot interchange
02/1991
02/27/1991EP0414352A2 Radio transmitter with output power control
02/27/1991EP0134817B1 Method of transferring digital signal
02/27/1991CN1049581A Subscriber unit for wireless digital subscriber communication system
02/26/1991US4996698 Clock signal resynchronizing apparatus
02/26/1991US4996695 Arrangement for accessing and testing telecommunication circuits
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