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)
11/1980
11/18/1980CA1089963A1 Digital time division switching arrangement
11/18/1980CA1089962A1 Bit switching of word synchronized data
11/12/1980EP0018782A1 Communication system with digital signal/noise ratio amplifier apparatus
11/12/1980EP0018618A1 Multiplex synchronisation device in a TDM exchange
11/12/1980EP0018526A1 Method of operating digital main terminals and/or branch exchanges connected to a PCM exchange
11/12/1980EP0018453A1 Synthesis arrangements for use in digital data transmission systems
11/11/1980US4233577 Flat transmission path for communication system
11/11/1980CA1089567A1 Digital bit rate converter
11/04/1980US4232294 Method and apparatus for rotating priorities between stations sharing a communication channel
11/04/1980US4232293 Line interface unit for voice and wide band signal coupling
11/04/1980US4232206 Signal transmission control system
11/04/1980US4232197 Processor for a TDMA burst modem
11/04/1980CA1089049A1 Method for data transmission and a system for carrying out the method
10/1980
10/29/1980EP0017835A1 Circuitry for controlling the transmission of digital signals, especially PCM signals, between connection points of a time division multiplexing telecommunication network, especially a PCM network
10/28/1980US4230911 Carrier terminal unit
10/21/1980US4229830 Apparatus and method for providing a modulation format for multiple wideband signal transmission
10/21/1980US4229816 Timing signal generation and distribution system for TDM telecommunications systems
10/21/1980US4229623 Receiving means for use in a high speed, low noise digital data communication system
10/21/1980US4229622 Multiplexing speech signals
10/21/1980US4229621 Transmitting means for use in a high speed, low noise digital data communication system
10/15/1980EP0016783A1 Surface acoustic wave unique word detector and coherent demodulator.
10/09/1980EP0016783A4 Surface acoustic wave unique word detector and coherent demodulator.
10/07/1980US4227248 PCM Tone signal generator
10/07/1980US4227205 Hue and saturation control circuitry requiring single coupling capacitor
10/07/1980US4227181 Peripheral station in an information handling system
10/01/1980EP0016677A1 Digital-transmission arrangement
10/01/1980EP0016477A1 Method and device for speech signal reconstruction in packet switched telecommunication networks
10/01/1980EP0016472A1 Arrangement with a hybrid for the two-wire to four-wire transition in PCM-time division multiplexing systems
10/01/1980EP0016336A1 Digital signal transmission system
09/1980
09/30/1980CA1086876A1 Interface circuit for digital telephone facilities
09/23/1980US4224473 TDMA Multiplexer-demultiplexer with multiple ports
09/23/1980CA1086396A1 Multiplex interrogation system using pulses
09/17/1980EP0015363A1 Speech detector with a variable threshold level
09/16/1980US4223269 Device for inserting several bits in a rhythmed digital train
09/09/1980CA1085524A1 Four-wire integrable hybrid
09/09/1980CA1085523A1 Signaling storage in digital channel banks
09/03/1980EP0014945A1 Circuit arrangement for clock generation in telecommunications exchanges, in particular time division multiplex digital exchanges
09/02/1980US4220822 Time division multiplex transmission system
09/02/1980CA1085071A1 Digital data transmission system providing multipoint connections
08/1980
08/20/1980EP0014556A1 A multiplex information handling system and a vehicle incorporating this system
08/20/1980EP0014330A1 Method and circuit arrangement for synchronizing data by means of synchronizing bits
08/19/1980US4218654 Space diversity system in TDMA communication system
08/19/1980US4218589 Method and apparatus for testing tone generators
08/19/1980US4218587 Complex signal generation and transmission
08/05/1980CA1083225A1 Apparatus for establishing communication between a first radio transmitter and receiver and a second radio transmitter and receiver
08/05/1980CA1083222A1 Fault location system for a repeatered pcm transmission system
07/1980
07/29/1980US4215348 Method of and system for synchronizing data reception and retransmission aboard communication satellite
07/29/1980CA1082823A1 Time division system for synchronizing functions controlled by different clocks
07/22/1980US4214206 Digital transmission system having direct bit extraction from scrambled bit streams
07/22/1980US4214124 Method and device for extracting a synchronizing signal from an incoming PCM signal
07/15/1980US4213011 Process for T.D.M. frame synchronization employing variable synchronizing words
07/15/1980CA1081848A2 Multi-line, multi-mode modulator using bandwidth reduction for digital fsk and dpsk modulation
07/09/1980EP0013103A1 Motor vehicle electrical system
07/09/1980EP0012979A1 Method for the transmission of several signals via a lightwave guide link, in particular between an exchange and a subscriber's connection
07/09/1980EP0012888A1 Adaptive delta modulator
07/01/1980US4210777 Pseudo-transparent stop bit generator
06/1980
06/17/1980US4208740 Adaptive delta modulation system
06/17/1980US4208650 Data transmission system
06/10/1980US4207545 Linear SAW signal processor
06/10/1980US4207521 System using carrier burst sequences for detecting interference signals occurring across channels of a radio link including a repeater
06/10/1980US4207435 Channel translators for use in time division digital exchangers
06/10/1980US4207434 Integral electric generator, multiplexer, data acquisition system
06/10/1980US4207433 Test arrangement for communication paths in time-division multiplexed switching systems
06/03/1980US4206322 Time-division switching system for multirate data
05/1980
05/27/1980US4205202 Method and means for improving the spectrum utilization of multichannel telephone systems
05/27/1980US4205201 Method and means for reducing intelligible crosstalk in telephone systems
05/27/1980CA1078535A1 Composite colour signal processing circuit
05/20/1980US4204093 Variable frame rate technique for use in a time-division multiple access (TDMA) communication system
05/15/1980WO1980001026A1 Regenerator having automatic gain control referenced to a data-pattern-dependent pulse stream
05/14/1980EP0010662A1 Multiplexing apparatus
05/13/1980US4203008 Digital signalling receiver for receiving PCM tones
05/13/1980US4203003 Frame search control for digital transmission system
05/13/1980US4203002 Code correlator loop using arithmetic synthesizer
05/06/1980US4201891 Expandable digital switching network
04/1980
04/22/1980US4199729 Variable peak detector
04/22/1980US4199661 Method and apparatus for eliminating conflicts on a communication channel
04/22/1980US4199660 FDM/TDM Transmultiplexer
04/22/1980CA1076235A1 Simulated communications system
04/17/1980WO1980000775A1 Time-division switching system for multirate data
04/17/1980WO1980000771A1 A signaling and ranging technique for a tdma satellite communication system
04/16/1980EP0009586A1 Method for the synchronization of transmitting and receiving devices
04/15/1980CA1075798A1 Multiprocessor control of a partitioned switching network by control communication through the network
04/08/1980CA1075386A1 Common control constant shift reframe circuit
04/03/1980WO1980000644A1 Filter for electrical oscillations comprised of switches,condensors and amplifiers
04/02/1980EP0009256A2 Control word source for time-division switching system accomodating multirate data
04/02/1980EP0009203A1 Method and circuit for digital audio/FDM or PCM/FDM transposition and vice versa
04/02/1980EP0009143A1 Circuit arrangement for the reception of digital message signals in a digital exchange of a PCM time multiplex telecommunication network
04/02/1980EP0009096A1 Method and system for synchronising a time division multiple access communication network using a satellite having multiple spot beam antennas at different frequencies
04/01/1980US4196358 Analog multiplexer
04/01/1980US4196315 Digital multiplexing and demultiplexing system
03/1980
03/25/1980US4195351 Loop configured data transmission system
03/25/1980US4195205 Signal transfer system for time division switching systems
03/25/1980US4195204 Signal mixer circuit
03/18/1980CA1074029A1 Framing circuit for digital signals using evenly spaced alternating framing bits
03/18/1980CA1074015A1 Interframe coding apparatus
03/05/1980EP0008416A1 Arrangement for transmitting digital data signals
03/04/1980US4191857 Digital trunk supervisory decoder multiplexor for ground start or E&M signalling on a common T1 span
03/04/1980US4191856 Analog multiplexer
03/04/1980CA1073127A1 Clock gated digital data encoding circuit
02/1980
02/26/1980US4190740 Circuit arrangement for receiving and transmitting switching data in telecommunication exchanges
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