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)
05/1984
05/22/1984US4450558 Method and apparatus for establishing frame synchronization
05/15/1984US4449247 Local orderwire facility for fiber optic communication system
05/15/1984US4449246 Orderwire communication system
05/15/1984CA1167575A1 Time slot multiple circuit for the selective establishment of connections in a t.d.m. digital telecommunications system
05/08/1984CA1167185A1 Frame resynchronization circuit for digital receiver
05/08/1984CA1167184A1 Synchronous/asynchronous data communication arrangement
05/02/1984EP0107236A1 Multiple redundant clock system comprising a number of mutually synchronizing clocks, and clock circuit for use in such a clock system
05/02/1984EP0107175A1 Method for the digital transmission of information
05/02/1984EP0033337B1 Digital loop synchronization circuit
05/01/1984CA1166775A1 Framing circuit for digital receiver
05/01/1984CA1166730A1 Bit-by-bit time-division digital switching network
04/1984
04/26/1984WO1984001679A1 A method of transferring an additional information channel across a transmission medium
04/25/1984EP0106714A1 Access point structure for a data packet broadcasting network
04/24/1984US4445213 Communication line interface for controlling data information having differing transmission characteristics
04/24/1984CA1166367A1 Multiple input programmable signal conditioner and commutator
04/24/1984CA1166366A1 Baton passing method and apparatus for maintaining synchronization in a tdma satellite communication system
04/10/1984US4442527 Radio transmitting and receiving system
04/10/1984US4442518 Channel switching system for use in a digital communication system
04/10/1984CA1165477A1 Time domain multiple access broadcasting multipoint, and conferencing communication apparatus and method
04/10/1984CA1165475A1 Method and device for multiplexing a data signal and several secondary signals, demultiplexing method and device associated therewith, and interface transmitter receiver using the same
03/1984
03/29/1984WO1984001247A1 Synchronizing system
03/27/1984US4439857 Digital data transmission system
03/27/1984CA1164589A1 System for the transmission of digital data in packets
03/21/1984EP0103163A2 Device for synchronously demultiplexing a time division multiplex signal
03/20/1984CA1164112A1 Minimal delay rate-change circuits
03/15/1984WO1984001069A1 Timing delay equalization circuit
03/15/1984WO1984001068A1 A pulse code modulated digital automatic branch exchange
03/14/1984EP0102815A2 Optical communication
03/14/1984EP0102810A1 Digital transmission systems
03/13/1984US4437183 Method and apparatus for distributing control signals
03/13/1984US4437182 In a time division multiplexer
03/13/1984CA1163686A1 Digital device for discriminating digitized speech/data signals
03/07/1984EP0101713A1 Method and apparatus for synchronising the phase of a transit exchange in a digital telecommunication network.
03/06/1984US4435826 Frame synchronizer
03/06/1984US4435781 Memory-based parallel data output controller
03/06/1984CA1163385A1 Method of and apparatus for transmitting data in a synchronous data network
03/06/1984CA1163384A1 Method for seizing time slots of a time-division multiplex system with dynamic multiplexers
03/01/1984WO1984000861A1 Demultiplexer circuit
03/01/1984WO1984000838A1 Fast response system for switched data networks
02/1984
02/29/1984EP0101634A2 Method for access control in a communication system
02/28/1984US4434498 Process and apparatus for synchronization of digital signals
02/28/1984US4434486 Self-switched data port in-band signaling protocol
02/28/1984US4434485 Drop and insert channel bank with reduced channel units
02/28/1984CA1163026A1 Multiplex security system using remote microprocessors
02/22/1984EP0101057A2 Demultiplexer
02/22/1984EP0101056A2 Synchronisation arrangement
02/21/1984US4433411 Telephone switching network for digital speech transmission
02/21/1984CA1162667A1 Bandwidth reduction method and structure for combining voice and data in a pcm channel
02/15/1984EP0100593A2 Improved time slot arrangements for local area network systems
02/14/1984US4432087 Demultiplexer circuit
02/08/1984EP0100169A2 Time compression multiplex digital transmission system
02/08/1984EP0100106A2 Communications systems and transmitters and receivers including scrambling devices
02/08/1984EP0100077A2 Circuit arrangement for clock generation in communication installations, especially TDM digital exchanges
02/08/1984EP0100076A2 Circuit arrangement for clock generation in communication installations, especially TDM digital exchanges
02/07/1984US4430745 Digital data transmission
02/07/1984US4430742 Data muting method and apparatus for radio communications systems
02/07/1984US4430734 Demultiplexer circuit
02/07/1984CA1161973A1 Level control of digital signals
02/07/1984CA1161972A1 Tim bus struture and data reorganization apparatus
02/07/1984CA1161935A1 Clock selection circuit
01/1984
01/31/1984US4429386 Buffer arrangement of a PCM exchange system
01/31/1984US4429383 Method for seizing time slots of a time-division multiplex system with dynamic multiplexers
01/31/1984US4429382 Microprocessor multiplexer method and apparatus for bisynchronous data
01/25/1984EP0099101A2 Synchronous clock producing circuit for a digital signal multiplex apparatus
01/25/1984EP0020379B1 Voltage reversing switch
01/24/1984USRE31510 Signal multiplexing circuit
01/24/1984US4428042 Interface device for coupling a system of time-division multiplexed channels to a data concentrator
01/24/1984CA1161176A1 Method of and apparatus for transmitting data
01/24/1984CA1161168A1 Digital code word detection
01/18/1984EP0098388A2 Satellite communication system and method with distributed transmission control
01/17/1984US4426730 Method of detecting the presence of speech in a telephone signal and speech detector implementing said method
01/17/1984CA1160775A1 Digital data transmission system
01/17/1984CA1160774A1 Service integrated transmission system
01/17/1984CA1160773A1 Method of clock rate matching plesiochronuous signals
01/10/1984US4425639 Satellite communications system with frequency channelized beams
01/10/1984CA1160371A1 Data detection circuit for a tasi system
01/03/1984CA1159971A1 Speech detector circuit with associated gain control for a tasi system
12/1983
12/28/1983EP0096854A2 Framing system
12/27/1983US4423493 Elastic memory with arrangement for reducing phase fluctuations in the output clock pulse
12/20/1983US4422140 Monitoring means for industrial process plants
12/20/1983CA1159166A1 Time assignment speech interpolation apparatus
12/13/1983US4420842 Fiber optic digital data transmitting system
12/13/1983CA1158788A1 Initial acquisition of synchronization for a station in a tdma satellite communication network
12/13/1983CA1158739A1 Distributed network synchronization system
12/08/1983WO1983004355A1 Method and apparatus for through-connection testing in a digital telecommunication network
12/06/1983US4419751 Multiport modem and the use thereof in a method and a system for testing a multilevel communication network
12/06/1983CA1158371A1 Multiplexer system providing improved bit count integrity
12/06/1983CA1158174A1 Multiple variable threshold speech detector
11/1983
11/30/1983EP0095165A2 Space diversity receiving system for multi-direction time division multiplex communication
11/29/1983US4418425 Encryption using destination addresses in a TDMA satellite communications network
11/29/1983US4418409 Byte data activity compression
11/29/1983CA1157975A1 Method of frame synchronisation of a digital tdm communication system and arrangement for performing the method
11/23/1983EP0094420A1 Data muting method and apparatus for radio communications systems.
11/22/1983CA1157594A1 Method for transmitting data by time multiplexing procedure
11/22/1983CA1157592A1 Method of clock rate matching plesiochronous signals
11/22/1983CA1157591A1 Byte data activity compression
11/22/1983CA1157589A1 Speech detector
11/15/1983US4416009 Synchronous coupling of framed data in digital transmission
11/15/1983US4415881 Digital-to-analog converter
11/10/1983WO1983003937A1 Digital multiplex device
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