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)
11/1983
11/09/1983EP0093479A2 Device for the resynchronisation of information originating from an incoming time multiplex for the transmission to an outgoing time multiplex
11/09/1983EP0093219A1 Digital coding method and device for carrying out the method
11/08/1983US4414663 Time division multiplex system having transmitted pulses in time channels distributed over and co-transmitted with a frame clock signal component
11/08/1983US4414662 System for the transmission of digital data in packets
11/01/1983US4413341 Method for exchange of data between central station and peripheral stations
11/01/1983US4413336 Process for transmitting data with the aid of a start-stop signal
11/01/1983CA1156384A1 Error monitoring in digital transmission systems
10/1983
10/26/1983EP0092237A2 Repeater station for use in a radio relay system to protect time deviations of time slots
10/25/1983US4412342 Clock synchronization system
10/25/1983US4412324 Bit-by-bit time-division switching network
10/25/1983US4412323 Muldem with improved monitoring and control system
10/25/1983CA1155981A1 Data transmission system
10/25/1983CA1155980A1 Pcm signal interface apparatus
10/25/1983CA1155978A1 Apparatus to reduce the effect of a mid-talkspurt freeze-out
10/25/1983CA1155977A1 Decoding tim bus structure
10/18/1983US4411007 Distributed network synchronization system
10/18/1983US4410980 Time division multiplexing system
10/13/1983WO1983003515A1 Equipment for measuring packet-multiplexed digital paths particularly in an analog signal
10/12/1983EP0091364A1 Equipment for measuring digital channels packet-multiplexed within a substantially analogous signal
10/12/1983EP0091061A2 Synchronisation device for a digital signal demultiplexing device
10/11/1983US4409683 Programmable multiplexer
10/11/1983CA1155241A1 Diagnostic circuit for pcm connection networks
10/04/1983US4408353 Coaxial cable/fiber optic bus network
10/04/1983US4408324 Noise signal level control in a TASI system
10/04/1983CA1154887A1 Asynchronous multiplex system
09/1983
09/27/1983US4407020 Automatic compensation circuit and method
09/21/1983EP0089063A2 Process and device for monitoring a PMC coder-decoder device
09/15/1983WO1983003175A1 Method and apparatus for synchronising the phase of a transit exchange in a digital telecommunication network
09/14/1983EP0088647A2 System for adjusting a time axis by using a control and an adjustment time slot in a satellite station of a TDMA network
09/14/1983EP0088432A1 Multiplexer apparatus having nBmB coder
09/13/1983US4404675 Frame detection and synchronization system for high speed digital transmission systems
09/13/1983US4404630 Data-extraction circuitry for PCM communication system
09/13/1983CA1153836A1 Transmitter-receiver synchronizer
09/06/1983US4403322 Voice signal converting device
09/06/1983US4403320 Line status detection in a digital concentrator system
08/1983
08/31/1983EP0087153A1 Digital signal multiplexer for high data rates
08/30/1983US4402080 Synchronizing device for a time division multiplex system
08/30/1983US4402079 Delay correction circuit
08/30/1983US4402073 Speech and data communication network
08/23/1983CA1152659A1 Broadcast and alternate message time slot interchanger
08/23/1983CA1152650A1 Pcm and pam conversion circuit including signal level variation on the pcm portion of the circuit
08/17/1983EP0086128A1 Asynchronous transmission system, particularly for a videotext interactive system
08/17/1983EP0085820A1 Method for multi-speed digital transmission and apparatus for carrying out said method
08/10/1983EP0085575A2 Power supply systems for use in radio communication systems
08/10/1983EP0085337A2 Digital telecommunication system
08/09/1983US4398290 Process and apparatus for digital data communication using packet switching
08/09/1983US4398284 Concentrator in a subscriber loop digital carrier system
08/03/1983EP0084883A1 Data transmission network
08/03/1983EP0084787A1 System for the transmission of digital information signals
08/03/1983EP0084675A2 Method and device for the clock synchronization at the receiving side of a plesiochronous transmission system
08/03/1983EP0084592A1 Process and device for measuring the time difference between the sampling-times of two sampled signals, in particular of the input and output signals of a sampling frequency converter
08/02/1983US4397020 Error monitoring in digital transmission systems
08/02/1983US4397017 Stuff synchronization device with reduced sampling jitter
08/02/1983US4396801 Multiplex communication system employing pulse code modulation
08/02/1983CA1151327A1 Digital conference circuit and method
08/02/1983CA1151326A1 Mechanism for synchronization of data ports in tdma communication
08/02/1983CA1151325A1 Multiple data rate digital switch for a tdma communications controller
08/02/1983CA1151324A1 Tasi system including an order wire
08/02/1983CA1151260A1 Digital data transmission system
07/1983
07/27/1983EP0084125A2 Apparatus for efficient statistical multiplexing of voice and data signals
07/20/1983EP0084002A1 Modular digital telephone switch of several autonomous switching bays of the same kind, and arrangement for inter-bay synchronization
07/19/1983US4394759 Transmitting section of PCM station
07/19/1983US4394758 Synchronizing unit for receiving section of PCM station
07/19/1983US4394757 Frame format for PCM speech data in a telephone transmission system and digital telephone apparatus for use with this frame format
07/19/1983CA1150431A1 Multiplex synchronizing device for time switching exchange
07/19/1983CA1150427A1 Universal demultiplexer
07/19/1983CA1150426A1 Buffering speech signals in a tasi system
07/19/1983CA1150369A1 Clock synchronizing circuit
07/19/1983CA1150366A1 High capacity elastic store having continuously variable delay
07/12/1983US4393492 Digital subscriber carrier system including drop terminals and bypass and loopback means and alarm indication means
07/12/1983US4393279 Digital data transmission system having frequency or phase modulated data carrying signals to provide supervisory channel
07/12/1983CA1149976A1 Data link for digital channel bank systems
07/05/1983US4392234 PCM Signal interface apparatus
07/05/1983CA1149526A1 Frame aligner for digital telecommunications exchange system
07/05/1983CA1149525A1 Channel zero switching arrangements for digital telecommunication exchanges
07/05/1983CA1149524A1 Noise signal level control in a tasi system
06/1983
06/29/1983EP0082333A1 Interleaved digital data and voice communications system and method
06/28/1983US4390988 Efficient means for implementing many-to-one multiplexing logic in CMOS/SOS
06/28/1983US4390987 Multiple input master/slave flip flop apparatus
06/28/1983US4390986 Digital subscriber communication system
06/28/1983US4390982 Digital PBX system
06/23/1983WO1983002205A1 Demultiplexer circuit
06/22/1983EP0082037A1 Digital system with optical information transmission
06/22/1983EP0081917A1 Programmable multiplexer
06/22/1983EP0081799A1 Method and circuit for establishing a conference connection
06/15/1983EP0081304A1 Drop-and-insert multiplex digital communications system
06/14/1983US4388718 Digital telecommunication system
06/07/1983US4387459 Non-buffered loop-timed channel bank
06/07/1983CA1147876A1 Resynchronizing circuit for time division multiplex system
06/07/1983CA1147875A1 Packet transmission system with voice signal priority
05/1983
05/31/1983CA1147391A1 Channel bank loop-around test arrangement and method
05/26/1983WO1983001880A1 Programmable multiplexer
05/26/1983WO1983001875A1 Data muting method and apparatus for radio communications systems
05/24/1983CA1147072A1 Electrical communications system
05/17/1983CA1146679A1 Device for supervising a transmultiplexer
05/17/1983CA1146648A1 Clock recovery circuit for burst communications systems
05/11/1983EP0078634A1 Switching network for use in a time division multiplex system
05/10/1983US4383323 Spread spectrum FH-MFSK transmitter and receiver
05/10/1983US4383315 Idle time slot seizure and transmission facilities for loop communication system
05/10/1983US4383312 Multiplex system tester
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