Patents
Patents for H04J 3 - Time-division multiplex systems (63,408)
06/1995
06/27/1995US5428609 STM-to-ATM converters
06/27/1995US5428603 Synchronous time division multiple access interrogate-respond data communication network
06/27/1995CA1336103C Data receiver interface circuit
06/24/1995CA2138750A1 Method for statistical multiplexing
06/23/1995CA2136275A1 Method and circuit arrangement for the realization of the higher path adaptation function in synchronous digital hierarchy equipments
06/22/1995WO1995017055A1 Passive optical network for video on demand
06/22/1995DE19503213A1 Digital source and control data transmission system
06/21/1995EP0659001A2 Parallel data transmission system using specific pattern for synchronisation
06/21/1995EP0658990A1 Circuit and method for alignment of digital information packets
06/21/1995EP0658989A1 Device for frequency multiplexing a data signal and a tone signal
06/20/1995US5426672 Process and device for timing recovery
06/20/1995US5426644 Parallel code transmission method and apparatus of the same
06/20/1995US5426643 Apparatus and method for transmitting bit synchronous data over an unreliable channel
06/20/1995US5426633 System for processing synchronization signals with phase synchronization in a mobile communication network
06/15/1995WO1995016330A1 Apparatuses and mobile stations for providing packet data communication in digital tdma cellular systems
06/15/1995WO1995016316A1 Optimization of transmitted pulse shape and receiver timing in digital system
06/15/1995CA2118548A1 Circuit and method for alignment of digital information packets
06/14/1995EP0658019A1 Method and device for generation of clock signals
06/14/1995EP0658018A1 Method and system for clock synchronization in an optical communications network
06/14/1995CN1028945C Radio pager with variable gain setting controlled according to presence and absence of sync codes
06/13/1995US5425101 System and method for simultaneously authorizing multiple virtual channels
06/13/1995US5425062 Serial rate conversion circuit with jitter tolerant payload
06/13/1995US5425032 TDMA network and protocol for reader-transponder communications and method
06/13/1995US5424586 Multiplex communication control unit
06/08/1995WO1995015657A1 An operations center with video storage for a television program packaging and delivery system
06/08/1995WO1995015634A1 System and method for transmitting and receiving variable length authorization control for digital services
06/08/1995WO1995015632A1 System and method for simultaneously authorizing multiple virtual channels
06/08/1995WO1995015626A1 Time alignment in a cdma system
06/07/1995EP0656704A1 Method and devices for transmitting data packets via a network operating in accordance with the synchronous digital hierarchy (SDH)
06/06/1995US5423067 Digital mobile communications system and method for providing intensity/coverage reference maps using base stations and mobile stations
06/06/1995US5422915 Fault tolerant clock distribution system
06/06/1995US5422888 Method for multiplexing cells intended for a plurality of receivers onto a transmission line connected to the receivers
06/06/1995US5422876 Out-of-band loopback control scheme
06/06/1995CA1335844C Remote supervisory and controlling system
06/06/1995CA1335834C Methods and apparatus for flexibly allocating bandwidth for a point-to-point, serial, bidirectional communication path
06/06/1995CA1335833C Methods and apparatus for performing time interleaved multiplexed rate adaptation for sub-rate channels in a digital data communication system
06/01/1995WO1995015042A1 Apparatus and method for eliminating mapping jitter
06/01/1995CA2177264A1 Apparatus and method for eliminating mapping jitter
05/1995
05/31/1995EP0432202B1 Link utilization control mechanism for demand assignment satellite communications network
05/31/1995CN1103242A A method and an apparatus for handing off mobile station from a first to a second channel in a mobile communication system
05/31/1995CN1103220A A method and apparatus for a verting electromagnetic interference
05/31/1995CN1028703C Voice transmission method and apparatus in duplex radio system
05/30/1995US5420894 Phase synchronization circuit for use in a telephone system
05/30/1995US5420883 Train location and control using spread spectrum radio communications
05/30/1995US5420861 Multiplex system for sub-channels which have various priority levels
05/30/1995US5420854 Digital interface system
05/30/1995US5420851 Method of multiple access
05/27/1995CA2136560A1 Method and device for generation of clock signals
05/26/1995WO1995014337A1 Method for adaptive smoothing delay for packet voice applications
05/24/1995EP0654924A2 Communication system having interconnected bidirectional line-switched ring transmission systems
05/24/1995EP0654923A2 Communication system having interconnected path-switched ring transmission systems
05/24/1995EP0654922A2 Communication system having interconnected line-switched and path-switched ring transmission systems
05/24/1995EP0654916A2 A method of multiple access
05/24/1995EP0654911A2 Switch-mode power supply for time division multiple access radio phone systems
05/24/1995EP0654202A1 A method and apparatus of dynamically adjusting a maximum number of users on a physical channel
05/24/1995EP0411083B1 Telecommunications system
05/24/1995DE4339586A1 Transmission system with synchroniser forming frame-synchronised outgoing signals from incoming signal
05/24/1995CN1102921A Method and apparatus for detecting bit rate in variable bit rate communication
05/23/1995US5418939 In a data processing complex
05/23/1995US5418788 Data link terminator
05/23/1995US5418783 Common channel signal extraction/insertion device
05/18/1995WO1995013681A1 Interactive information services control system
05/18/1995WO1995013673A1 Method for receiving a signal in a synchronous digital telecommunications system
05/18/1995WO1995009511A3 Radiotelephone system for groups of remote subscribers
05/18/1995DE4434041C1 Transmission equipment for spoken information
05/17/1995EP0653132A1 Local or/and transit exchange for a broadband communication network.
05/17/1995EP0653131A1 Method and apparatus for conveying a field of data in a communication system
05/17/1995EP0653093A1 Method of transmitting digital data without fixed coupling between the clock frequencies and the transmission frequency.
05/17/1995EP0472700B1 Switch for multiplexes
05/17/1995EP0403529B1 Mixed mode compression for data transmission
05/16/1995US5416797 System and method for generating signal waveforms in a CDMA cellular telephone system
05/16/1995US5416779 Time division duplex telecommunication system
05/16/1995US5416772 Apparatus for insertion of overhead protocol data into a switched data stream
05/16/1995US5416768 Interconnecting communications networks
05/11/1995WO1995012957A1 Radio personal communications system
05/11/1995WO1995012943A1 Method and apparatus for the transmission of variable rate digital data
05/11/1995WO1995012936A1 A method and apparatus for locating a digital control channel in a radiocommunication system
05/11/1995WO1995012934A1 Layer 2 protocol in a cellular communication system
05/11/1995WO1995012931A1 Digital control channels having logical channels for multiple access radiocommunication
05/11/1995WO1995012930A1 A method for communicating in a wireless communication system
05/10/1995EP0652680A2 Method for communicating in a wireless communication system
05/10/1995EP0652658A2 Synchronous/asynchronous system having function of switching path upon fault
05/10/1995EP0652657A1 Pointer justification event leak control
05/10/1995EP0652656A1 Method and device for searching special data groups periodically inserted in a data flow
05/10/1995EP0652655A1 Transmission system
05/10/1995EP0651926A1 Transmitting and receiving apparatus and method including punctured convolutional encoding and decoding
05/10/1995EP0651924A1 Method for the cellization and the decellization of tributary units in a stm-1 frame of a telecommunication system of the synchronous digital hierarchy type (sdh).
05/10/1995CA2135375A1 Method and device for detecting a characteristic data grouping periodically inserted into a flux
05/09/1995US5414796 Method of speech signal compression
05/09/1995US5414703 Asynchronous cell switch
05/09/1995US5414697 Data transmission control system
05/04/1995WO1995012263A1 Standing sine wave clock bus for clock distribution systems
05/04/1995WO1995012257A1 Apparatus and method for adapting a digital radiotelephone system to increased subscriber traffic
05/04/1995WO1995012251A1 A wireless packet data communications modem and method of use therein
05/03/1995EP0651523A2 Communication receiver using soft decision to discriminate between a traffic channel frame and a fast associated control channel frame
05/03/1995EP0650654A1 Method for implementing time switching and a time switch
05/03/1995EP0650652A1 Method for implementing switching in time or space domain
05/03/1995EP0650429A1 Train location and control using spread spectrum radio communications
05/02/1995US5412696 Electronic circuit readily capable of controlling extent of a radio communication zone
05/02/1995US5412652 Sonet ring subnetwork management method