Patents
Patents for H04J 3 - Time-division multiplex systems (63,408)
07/1994
07/26/1994US5333148 Data receiver
07/26/1994US5333136 Parallel data transferring and processing circuit
07/26/1994US5333130 Self-healing drop and insert communication network
07/26/1994US5333088 Data transmission system
07/26/1994CA2016255C Elastic buffer circuit
07/26/1994CA2009237C Integrated communications system for hdlc variable-length data packets and fixed-length voice/video packets
07/20/1994EP0606609A2 A frame phase synchronization apparatus and method and a phase synchronization apparatus for TDM frames
07/20/1994EP0606272A1 Simulcast synchronization and equalization system and method therefor
07/20/1994EP0606236A1 Simulcast synchronization and equalization system
07/20/1994EP0261112B1 Method and apparatus for controlling a tdm communication device
07/19/1994US5331671 Circuit arrangement for bit rate adjustment to two digital signals
07/19/1994US5331670 Synchronization scheme for a digital communications system
07/19/1994US5331667 Telephone exchange apparatus with communication line clocking
07/19/1994US5331641 Methods and apparatus for retiming and realignment of STS-1 signals into STS-3 type signal
07/19/1994US5331639 Method and apparatus for frame phase conversion of signal having frame structure
07/19/1994US5331633 Hierarchical bus type multidirectional multiplex communication system
07/19/1994US5331630 Renewal method and apparatus for AU-4 and TU-3 pointers of synchronous digital hierarchy
07/19/1994US5331451 Optical time-division multiplexing
07/19/1994CA2031935C High-speed synchronous transmission line access terminal
07/19/1994CA2003846C Synchronous multiplex transmission apparatus
07/13/1994EP0605795A2 Ring network overhead handling method
07/12/1994US5329558 Method of synchronizing a radio receiver with an incoming radio signal
07/12/1994US5329557 Digital data radio transmission system
07/12/1994US5329529 Digital data arbitration apparatus
07/12/1994US5329524 TDM circuit-switching arrangement that handles frames of different sizes
07/12/1994US5329520 High-speed facility protection in a digital telecommunications system
07/12/1994US5329393 Optical Nyquist rate multiplexer and demultiplexer
07/12/1994CA2103129A1 Asynchronous transfer mode (atm) payload synchronizer
07/12/1994CA2024204C Loopback test starting system
07/08/1994CA2110341A1 Desynchronizer and use of same
07/07/1994WO1994015419A1 Performance monitoring and test system for a telephone network
07/07/1994DE4343704A1 Mediumzugriffsprotokoll mit impliziten Zeichen ohne Kollisionserfassung Medium access protocol with implicit character without collision detection
07/06/1994EP0605312A1 Method of high rate information transmission by multiple block allocation, method and device for reception
07/06/1994EP0605267A1 Multirate frame and device for multiplexing data of non-multiple bit rates
07/06/1994EP0605188A2 Symbol and frame synchronization for a TDMA system
07/06/1994CN1025403C Digital transmission system, transmitter, receiver and record carrier
07/05/1994US5327581 Method and apparatus for maintaining synchronization in a simulcast system
07/05/1994US5327468 Synchronization of time-of-day clocks in a distributed processing network system
07/05/1994US5327434 Frame alignment circuit
07/05/1994US5327433 Digital tandem channel unit interface for telecommunications network
07/05/1994US5327430 Circuit arrangement for bit rate adaptation
07/05/1994US5327427 Self-healing meshed network using logical ring structures
07/05/1994US5327425 Network synchronization control system and control method
07/05/1994US5327422 Controllable multiplexer for a digital switch
07/05/1994US5327402 Clock supply apparatus
07/05/1994US5327391 Double buffer type elastic store comprising a pair of data memory blocks
07/05/1994US5327343 Universally and bidirectionally operable device for signal path control in a motor vehicle diagnostic system
07/05/1994US5327277 Method and apparatus for determining equalization delays in a transmission system and related apparatus
07/05/1994US5327126 Apparatus for and method of parallel justifying and dejustifying data in accordance with a predetermined mapping
07/05/1994CA2031963C System for controlling multiple line cards on a tdm bus
07/05/1994CA2016639C Sonet h4 byte generator
06/1994
06/30/1994DE4243666A1 Time multiplex frame detection
06/29/1994EP0604295A1 A method for automatic gain control of a digital receiver, in particular in a TDMA receiver and a device for performing the method
06/29/1994EP0603641A2 Method of operation for a time-division multiplex transmission system
06/29/1994EP0603635A2 Time multiplex transmission system with propagation time compensation
06/29/1994EP0603600A2 Path delay compensation in an open-loop system
06/29/1994CN1025267C Method and apparatus for detecting frame alignment word in data stream
06/28/1994US5325404 Synchronization device for performing synchronous circuit switching functions thru an asynchronous communication node
06/28/1994US5325396 Digital synthesizer
06/28/1994US5325366 Alarm system for station in a communications system using asynchronous third-digital-stage signal
06/28/1994US5325354 Synchronous terminal station receiving system
06/28/1994CA2031934C Flywheel circuit
06/23/1994WO1994014284A1 Reprogrammable terminal for suggesting programs offered on a television program delivery system
06/23/1994WO1994014283A1 Television program delivery system
06/23/1994WO1994014282A1 Set top terminal for cable television delivery systems
06/23/1994WO1994014281A1 An operation center for a television program packaging and delivery system
06/23/1994WO1994014280A1 Network controller for cable television delivery systems
06/23/1994WO1994014279A1 Digital cable headend for cable television delivery system
06/23/1994WO1994014254A1 Multiplexer and demultiplexer
06/22/1994EP0603053A1 Method and apparatus for generating binary errors
06/21/1994US5323446 Digital cellular switching system with means for securing uninterrupted data transparency during handoffs
06/21/1994US5323426 Elasticity buffer for data/clock synchronization
06/21/1994US5323397 Interface conversion circuit
06/21/1994US5323396 Digital transmission system, transmitter and receiver for use in the transmission system
06/21/1994US5323395 Method and system for sending data over a transmission link in variable length blocks in asynchronous transfer mode
06/21/1994US5323390 Multirate, sonet-ready, switching arrangement
06/21/1994US5323383 Control information transmission apparatus for use in time division multiplex communication systems
06/21/1994US5323255 Transceiver arrangement using TDM to transmit assigned subcarrier waveforms
06/21/1994CA2039746C Transmission congestion control method and apparatus
06/16/1994DE4334648A1 Digital data transmission procedure - transmitting digital signals over electric cable in fast data stream between two interfaces
06/16/1994DE4316493C1 Extracting and inserting digital signals - converting initial multiplex signals by doubling data rate prior to combining into single multiplex signal fed to all peripherals
06/15/1994EP0601766A1 Audiovisual communication system using variable length packets
06/15/1994EP0601653A1 Transmission system for the transmission of information of different bit rates and transmission station for such a system
06/15/1994EP0601498A2 Method for transmission of plesiochronous signals in a synchronous data network
06/15/1994EP0601172A1 High-speed time-multiplexed data transmission system
06/15/1994EP0601013A1 Multiport multidrop digital system
06/15/1994EP0577777A4 Method for providing reserved communication access using multiple random access resources
06/15/1994EP0501992B1 Communications system
06/15/1994CN1088033A Method and apparatus for communicating variable length messages between register modeled radio devices
06/14/1994US5321754 Sequence synchronization
06/14/1994US5321728 Clock signal multiplex circuit
06/14/1994US5321727 Signal phasing arrangement in a system for doubling the digital channel
06/14/1994US5321394 Spare card connection circuitry for high-speed telecommunications transmitters/receivers and methods
06/14/1994US5321393 Spare card connection and switching circuitry for high-speed telecommunications interfaces
06/14/1994CA2031512C Signal generating and receiving apparatuses based on synchronous transfer mode
06/09/1994WO1994013107A1 Advanced set top terminal for cable television delivery systems
06/09/1994WO1994013073A1 A method for testing a network element in a synchronous digital telecommunication system
06/09/1994WO1994012571A2 Mixtures of unsaturated carboxylic acid polymerizates and use
06/09/1994CA2345161A1 Advanced set top terminal for cable television delivery systems
06/09/1994CA2149746A1 Mixtures of unsaturated carboxylic acid polymerizates and use