Patents
Patents for H04J 3 - Time-division multiplex systems (63,408)
01/1997
01/21/1997US5596647 Integrated video and audio signal distribution system and method for use on commercial aircraft and other vehicles
01/21/1997US5596614 Method and circuitry for aligning the phase of high-speed clocks in telecommunications systems
01/21/1997US5596610 Delay stage circuitry for a ring oscillator
01/21/1997US5596608 Fading distortion compensation method and circuit
01/21/1997US5596588 Multiplex transmission method
01/21/1997US5596581 Recording and reproducing an MPEG information signal using tagged timing information
01/21/1997US5596576 Systems and methods for sharing of resources
01/21/1997US5596569 Telecommunications switch with improved redundancy
01/21/1997US5596568 Apparatus for protecting a telecommunications network from false alarm conditions due to T1 line signal interruption
01/21/1997US5596439 Self-interference cancellation for two-party relayed communication
01/21/1997CA2181736A1 Frame synchronisation method
01/21/1997CA2096160C Audio/video communications processor
01/20/1997CA2181596A1 Facility and method for transmitting digitized signals
01/16/1997WO1997001907A1 Self-healing network
01/16/1997WO1997001905A1 Implementation of a fault-tolerant bus in a telecommunications network
01/16/1997WO1997001904A1 Implementing a fault-tolerant bus in a telecommunications network
01/16/1997WO1997001901A1 Clock and data regenerator for gigabit signals
01/16/1997WO1997001897A1 Add/drop multiplexer node
01/16/1997WO1997001896A1 Synchronisation in digital communications networks
01/15/1997EP0753954A2 Transmission of high rate isochronous data in MPEG-2 data streams
01/14/1997US5594941 A cellular/satellite communications system with generation of a plurality of sets of intersecting antenna beams
01/14/1997US5594739 System and method for rapid selection of synchronization sources in a mobile telecommunications network
01/14/1997US5594738 In a communication system
01/14/1997US5594737 Arrangement for controlling a transmitting/receiving device of base stations and/or mobile units, in particular of a cordless telephone system
01/14/1997US5594727 Telephone switch providing dynamic allocation of time division multiplex resources
01/14/1997US5594726 Frequency agile broadband communications system
01/14/1997US5594724 Transmission convergence sublayer multiplex generating/terminating apparatus
01/14/1997US5594723 ATM information system and multiplexer for assigning and controlling access time
01/14/1997US5594720 Multiple access cellular communication with dynamic slot allocation and reduced co-channel interferences
01/14/1997CA2066543C Adaptive synchronization arrangement
01/09/1997WO1997001230A1 System and method for reconfiguring a telecommunications network to its normal state after repair of fault
01/09/1997CA2224591A1 System and method for reconfiguring a telecommunications network to its normal state after repair of fault
01/08/1997EP0752178A1 Protection scheme for sdh add/drop multiplexer
01/08/1997EP0595911B1 Basic rate interface
01/08/1997EP0525771B1 Data processing device comprising a multiport RAM as a sequential circuit
01/08/1997CN1140002A Burst Alignment Procedure
01/08/1997CN1139849A Code converter for multi-signal multi-encoder
01/07/1997US5592658 Apparatus and method for computer network clock recovery and jitter attenuation
01/07/1997US5592653 Interface conversion device
01/07/1997US5592519 Dual frequency clock recovery using common multitap line
01/07/1997US5592518 Parallel frame synchronizer for detecting forward-ordered/reverse-ordered, inverted/non-inverted data
01/07/1997US5592489 Data combination circuit device and data combination method
01/07/1997US5592474 System for processing synchronization signals with phase synchronization in a mobile communication network
01/07/1997US5592472 High performance path allocation system and method for a fiber optic switch for a fiber optic network
01/07/1997US5592398 Multiple channel multiplexing apparatus
01/07/1997CA2036135C Phase locked loop including non-integer multiple frequency reference signal
01/03/1997WO1997000569A1 Data bus system comprising resource control means
01/03/1997WO1997000565A1 Cdma communication system in which bit rates are dynamically allocated
01/02/1997EP0751642A2 VT path misconnection avoidance method in the event of SONET failures without causing uncleared AU squelch
01/02/1997EP0751641A2 Pointer processor and pointer processing scheme for SDH/SONET transmission system
01/02/1997EP0751634A2 Method and circuit for frame synchronisation in a multi-cellular telecommunications system
01/02/1997EP0751633A2 Radio communication apparatus and method for determination of frequency error occuring in a repeater station
01/02/1997EP0751520A2 Transmission of digital signals by means of a record carrier
01/02/1997EP0750769A1 Method and apparatus for synchronization and scheduling of multiple data streams and real time tasks
01/02/1997EP0554268B1 Process and system for transmitting synchronisation signals in a network in the synchronous-digital hierarchy
01/02/1997DE19523186A1 Combined frequency and phase regulation loop, esp. for gigabit signals
12/1996
12/31/1996US5590161 Transmission system
12/31/1996US5590160 Symbol and frame synchronization in both a TDMA system and a CDMA
12/31/1996US5590159 Digital data sequence pattern filtering
12/31/1996US5590140 Clock recovery extrapolation
12/31/1996US5590133 Apparatuses and mobile stations for providing packet data communication in digital TDMA cellular systems
12/31/1996US5590131 Efficient distributed queueing random access method for the medium access control layer in networks with broadcast channels
12/31/1996US5590119 Deterministic selection of an optimal restoration route in a telecommunications network
12/31/1996US5590116 Multiport analyzing, time stamp synchronizing and parallel communicating
12/31/1996CA2063001C Line monitoring for sdh signals
12/31/1996CA2055954C Distance-measuring method and transmitting and receiving station for carrying out the same
12/27/1996WO1996042158A1 Synchronizing the transmission of data via a two-way link
12/27/1996WO1996042152A1 Audio-video conferencing system
12/27/1996WO1996042148A2 Programmable data port for atm memory
12/27/1996EP0749663A1 Telecommunications switch with improved redundancy
12/27/1996EP0749651A1 Cell extender with timing alignment for tdma systems
12/27/1996EP0653093B1 Method of transmitting digital data without fixed coupling between the clock frequencies and the transmission frequency
12/27/1996CA2224641A1 Audio-video conferencing system
12/27/1996CA2224196A1 Synchronizing the transmission of data via a two-way link
12/25/1996CN1138936A Testing equipment for a base station network
12/25/1996CN1138781A Time-division multidirectional multiplex communication system capable of using message area in radioage areaignals divideo into plurality of areas
12/24/1996US5588030 Apparatus and method for the synchronization of data in a bit stream
12/24/1996US5588004 Bus synchronizing method and system based thereon
12/24/1996US5587996 Method of radio-line relief and radio equipment in SDH network
12/24/1996US5587709 High speed serial link for fully duplexed data communication
12/19/1996WO1996041452A1 Reverse path allocation and contention resolution scheme for a broadband communications system
12/19/1996WO1996041440A1 Method and system for identifying fault locations in a communications network
12/19/1996WO1996041435A1 Method and apparatus for the monitoring and demarcation of synchronous digital hierarchy networks
12/19/1996CA2222160A1 Method and system for identifying fault locations in a communications network
12/18/1996EP0749223A1 Device and method for initially synchronizing spread-spectrum code of cdma transmission system
12/18/1996EP0748548A1 Hierarchical synchronization method
12/18/1996EP0748547A1 Hierarchical synchronization method
12/18/1996EP0748546A1 Hierarchical synchronization method
12/18/1996CN1138258A Clock receiver for network synchronization control of exchange system
12/17/1996US5586121 Asymmetric hybrid access system and method
12/17/1996US5586119 Method and apparatus for packet alignment in a communication system
12/17/1996US5586115 Add-drop multiplexer
12/17/1996US5586112 Digital crossconnect system for selecting alternate communication routes in case of a transmission fault
12/17/1996CA2076932C Multiplex transmission apparatus
12/17/1996CA2040429C Relay and exchange system for time division multiplex data
12/12/1996WO1996039779A2 Control message transmission in telecommunications systems
12/12/1996WO1996039767A1 A method for arbritrating for access to a control channel in a data bus system
12/12/1996WO1996039762A1 Distribution of synchronization in a synchronous optical environment
12/12/1996WO1996039761A1 Encoding system for distribution of synchronization
12/12/1996WO1996039760A1 Synchronisation in an sdh network