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)
10/1982
10/12/1982US4354265 Method and an apparatus for transferring digital information in a telephone system
10/12/1982US4354264 Digital ring control system for digital multiplexer
10/05/1982US4353130 Device for processing serial information which includes synchronization words
10/05/1982US4353129 Digital data transmission system
10/05/1982US4353128 Synchronous/asynchronous data communication arrangement
10/05/1982US4352957 Speech detector circuit with associated gain control for a tasi system
10/05/1982CA1133154A1 Digital bus communications system
10/05/1982CA1133153A2 Modem with automatic port reconfiguration apparatus
09/1982
09/28/1982US4352181 Device for synchronising multiplex lines in a time-division exchange
09/28/1982US4351983 Speech detector with variable threshold
09/22/1982EP0060318A1 Broadband switching system
09/21/1982US4350906 Circuit with dual-purpose terminal
09/15/1982EP0060155A1 Multiplexing-demultiplexing system using stuffing
09/15/1982EP0059821A1 Method and apparatus, e.g. in a data distribution system for, inter alia, avoiding distortion in transfer of signal states
09/14/1982US4349821 Data acquisition system and analog to digital converter therefor
09/14/1982CA1131739A1 Test arrangement for communication paths in time-division multi-plexed switching systems
09/07/1982US4348758 Digital debouncing and storage apparatus for use in a telephone switching system
09/01/1982EP0058982A1 Digital device for discriminating between digitized speech signals and data signals
08/1982
08/31/1982US4347620 Method of and apparatus for regenerating a signal frequency in a digital signal transmission system
08/31/1982US4347606 Method of frame synchronization of a digital TDM communication system and arrangement for performing the method
08/31/1982US4347604 Bi-directional data communications system
08/31/1982US4347600 Monitored muldem with self test of the monitor
08/31/1982CA1130920A1 Speech detector with variable threshold
08/25/1982EP0058482A1 Method and apparatus for transmitting data with digitally encoded speech
08/25/1982EP0058417A2 Method for transmitting time-division multiplexed data
08/24/1982US4346470 Initial acquisition of synchronization for a station in a TDMA satellite communication network
08/24/1982US4346380 Simultaneous communication of analog and binary information in a single frame of a pulse count modulated digital signal
08/24/1982US4346259 Low speed terminal interface for all-digital PABX
08/24/1982CA1130481A1 Processor for a tdma burst modem
08/17/1982US4345323 Pulse duration digital multiplexing system
08/17/1982CA1130026A1 Space diversity system in tdma communication system
08/10/1982US4344180 Redundant word frame synchronization circuit
08/03/1982CA1129036A1 Digital data transmission
07/1982
07/22/1982WO1982002465A1 Automatic framing in time division multiplexer
07/21/1982EP0056277A1 Circuit for eliminating spurious components resulting from burst control in a TDMA system
07/20/1982US4340962 Circuit arrangement for the synchronization of a digital subscriber station by a digital exchange in a PCM telecommunication network
07/14/1982EP0055902A2 Transmitting a voice signal and data on a single channel
07/13/1982US4339818 Digital multiplexer with increased channel capacity
07/13/1982US4339817 Clock recovery circuit for burst communications systems
07/13/1982CA1127770A1 Method and device for speech signal reconstruction in packet switched telecommunication networks
07/13/1982CA1127769A1 Data transmission system
07/07/1982EP0055688A1 Signal transmission arrangement according to the time multiplex system
07/06/1982CA1127308A1 Adaptive delta modulation system
07/06/1982CA1127279A1 Expandable digital switching network
06/1982
06/29/1982US4337463 Time synchronization master station and remote station system
06/29/1982CA1126833A1 Digital loop synchronization circuit
06/23/1982EP0054120A1 Service integrated transmission system
06/22/1982CA1126361A1 Digital transmission system
06/15/1982US4335456 Switch-through unit for bit groups within a program controlled, electronic data switching system
06/09/1982EP0053399A1 Method of and system for satellite-switched time-division multiple access
06/09/1982EP0053230A1 Digital information transmission system
06/09/1982EP0053212A1 Multichannel modem and its utilization in a process and system for testing a communication network with several levels
06/08/1982CA1125405A1 Method of rotating priorities between stations sharing a communication channel
06/02/1982EP0052695A2 System for transmitting television signals and auxiliary signals in the opposite direction along one and the same transmission line by the multiplex process
06/01/1982US4333175 Telephone system using pulse code modulated subscriber lines
06/01/1982US4333108 Apparatus and method for transmitting a pulse width modulated audio signal on a video signal
06/01/1982CA1124899A1 Time division multiplexed transmission system for telephone or like signals with frequency band compression
06/01/1982CA1124898A1 Pcm tone signal generator
06/01/1982CA1124823A1 Timing signal generation and distribution system for tdm telecommunications systems
06/01/1982CA1124821A1 Time-division-multiplexed exchanger
05/1982
05/25/1982US4332026 Multiple data rate digital switch for a TDMA communications controller
05/25/1982US4331837 Speech/silence discriminator for speech interpolation
05/25/1982CA1124418A1 Digital coin circuit
05/25/1982CA1124356A1 Regenerator having automatic gain control referenced to a data-pattern-dependent pulse stream
05/18/1982US4330885 Protected muldem with improved monitoring system and error detection
05/18/1982US4330859 Automatic gain control circuit in multi-direction time division multiplex communication system
05/18/1982US4330858 Time domain supervisory channel for data terminal equipments
05/18/1982US4330857 Dynamically variable priority, variable position channels in a TDMA burst
05/18/1982US4330856 Digital signal transmission system including means for converting asynchronous signals to the operating speed of a transmission line
05/18/1982US4330854 Apparatus for generating an exchange pulse train for use in a telecommunications system
05/18/1982CA1123963A1 Digital signal transmission system
05/18/1982CA1123939A1 Time-division switching system for multirate data
05/11/1982US4329711 Apparatus for encoding of information
05/04/1982US4328579 Voice band multiplex transmission system
05/04/1982US4328577 Muldem automatically adjusting to system expansion and contraction
05/04/1982US4328559 Apparatus for exchange of data between central station and peripheral stations and system for effecting same
05/04/1982US4328543 Control architecture for a communications controller
05/04/1982CA1123102A1 Line interface unit for voice and wide band signal coupling
04/1982
04/28/1982EP0050435A2 Coaxial cable/fiber optic bus network
04/27/1982US4327436 Signal monitoring and controlling system in a time division switching system
04/27/1982US4327411 High capacity elastic store having continuously variable delay
04/27/1982US4327373 Composite color signal processing circuit
04/27/1982CA1122732A1 Apparatus working with pulse code modulation or similar digitizing techniques and according to the time division multiplexing principle for processing the information of a number of telephone channels
04/20/1982US4326288 Method and apparatus for frequency division multiplex system
04/20/1982US4326287 Two wire bi-directional digital telephone link
04/14/1982EP0049569A1 Buffering speech signals in a TASI system
04/14/1982EP0049568A1 TASI system including an order wire
04/14/1982EP0049428A2 Apparatus for use in telephone communication
04/13/1982US4325147 Asynchronous multiplex system
04/13/1982CA1121894A1 Digital trunk supervisory decoder multiplexor for ground start or e&m signalling on a common t1 span
04/07/1982EP0049158A2 I/O data processing system
04/07/1982EP0048853A1 Telephone switching network for digital speech transmission
04/06/1982US4323790 Elastic storage and synchronization control apparatus for use in a telephone switching system
04/06/1982CA1121275A1 Digital signal/noise ratio amplifier apparatus for a communication system
04/01/1982WO1982001106A1 Digital concentrator
04/01/1982WO1982001094A1 Error monitoring in digital transmission systems
03/1982
03/30/1982US4322845 Demand assignment technique for TDMA satellite communication network
03/30/1982US4322844 Transmitter-receiver synchronizer
03/30/1982US4322580 Clock selection circuit
03/30/1982CA1121075A1 Method and system for synchronizing a tdma communication network comprising a satellite equipped with several directional beam antennas transmitting signals at various frequencies
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