Patents
Sitemap › H04 - Electric communication technique › H04L - Transmission of digital information, e.g. telegraphic communication › H04L 5 - Arrangements affording multiple use of the transmission path
Patents for H04L 5 - Arrangements affording multiple use of the transmission path (28,368)
01/1985
01/23/1985EP0131732A2 Inductive coupling system for the bi-directional transmission of digital data
01/15/1985CA1181184A1 Time compression multiplex digital transmission system
01/15/1985CA1181183A1 Time compression multiplex digital transmission system
01/15/1985CA1181150A1 Arrangement for correcting pulse distortion in homochronous data transmission
01/09/1985EP0130260A1 Interface module for telephone lines
01/08/1985US4493092 Interface circuit for digital signal transmission system
01/08/1985US4493074 Content induced transaction overlap communication system
12/1984
12/27/1984CA1180078A Data processing system having apparatus in a communications subsystem for establishing byte synchronization
12/27/1984CA1180076A Circuit for equipping a variable number of bus units on a closed loop bus
12/27/1984CA1180075A Local area contention network data communication system
12/19/1984EP0128172A1 Distributed time division multiplexing bus
12/18/1984US4489421 Digital message transmission system employing pulse stuffing and having two plesiochronic sampling clocks
12/04/1984CA1179032A1 Coaxial cable/fiber optic bus network
11/1984
11/27/1984CA1178721A1 Binary signal receiver for time compression multiplexing
11/27/1984CA1178715A1 Device for transmitting signals between two information processing stations
11/27/1984CA1178686A1 Line protocol for communication system
11/20/1984US4484028 Digital loop transceiver having a power up/down circuit
11/14/1984EP0125168A1 Multiplexer, demultiplexer and multiplexing-demultiplexing equipment with reconfigurable frames
11/08/1984WO1984004435A1 Variable bandwidth switching system
11/06/1984US4481622 High speed dial-up telephone circuit full duplex data transmission techniques
11/06/1984US4481621 Service integrated digital signal transmission system
11/06/1984US4481385 Arrangement for cancelling echo signals
11/06/1984CA1177587A1 Method and device for detecting data signals and signalling signals in a telephone channel
10/1984
10/31/1984EP0123507A1 Data communication system and apparatus
10/30/1984US4480327 Single channel duplex communication system
10/24/1984EP0092569B1 A fir-type balance filter incorporated in the transmitter-receiver unit in a telecommunication system
10/16/1984US4477898 Process for determining active channel configurations in a multiplex communications system and a system for implementing said process
10/16/1984US4477896 Single-wire data transmission system having bidirectional data synchronization, and D.C. power for remote units
10/09/1984US4476558 Time compression multiplex digital transmission system
10/09/1984US4476557 Duplex signaling circuit
10/02/1984US4475191 Distributed time division multiplexing bus
10/02/1984CA1175526A1 Digital information transmission system
10/02/1984CA1175523A1 Voiceband data set
10/02/1984CA1175521A1 Echo cancellation in two-wire full-duplex data transmission with estimation of far-end data components
09/1984
09/25/1984CA1175124A2 Voiceband data set
09/18/1984US4472803 Digital transmitting system
09/18/1984US4472800 Binary signal receiver for time compression multiplexing
09/18/1984US4472799 Method of and means for synchronizing a receiving section of a digital telecommunication system
09/12/1984EP0118110A2 Digital transceiver for full-duplex transmission of logic signals on a single line
09/05/1984EP0117644A1 Digital communication station
09/05/1984EP0117442A2 Distributed bus control system
09/04/1984US4469916 Method and apparatus for detecting signalling and data signals on a telephone channel
08/1984
08/22/1984EP0116430A1 Digital communication station
08/21/1984US4467473 Time compression multiplex digital transmission system
08/21/1984CA1173168A2 Serial transmission system for use in postage meters
08/15/1984EP0115658A1 Method and system of transmitting digital information in a transmission ring
08/14/1984US4466107 Data communication system
08/14/1984US4466097 Control signal-multiplexing circuit
08/14/1984CA1172765A1 Receive buffer for converting synchronous-to- asynchronous data
08/14/1984CA1172721A1 Synchronous time-shared data bus system
08/07/1984US4464765 Burst signal transmission system
08/07/1984US4464746 Arrangement for correcting pulse distortion in homochronous data transmission
08/07/1984US4464545 Echo canceller
08/07/1984CA1172331A1 Self-clocking data transmission system
08/07/1984CA1172330A1 Multiport modem and the use thereof in a method and a system for testing a multilevel communication network
08/02/1984WO1984003016A1 Synchronous communications multiplexer
08/02/1984WO1984003015A1 Telecommunication terminal
07/1984
07/17/1984US4460993 Automatic framing in time division multiplexer
07/05/1984WO1984002627A1 Secondary channel method and apparatus
07/04/1984EP0112716A2 Secondary channel method and apparatus
07/04/1984EP0112426A1 Synchronizing system for a multiplexed loop communication network
06/1984
06/21/1984WO1984002438A1 Distributed time division multiplexing bus
06/19/1984CA1169492A1 Echo canceler having simplified calculation circuits
06/13/1984EP0110314A2 Time division mutiplex data transmission method and system
06/12/1984US4454383 Asynchronous data transmission method and circuitry
06/12/1984CA1169170A1 Digital subscriber communication system
06/05/1984CA1168770A1 Idle time slot seizure and transmission facilities for loop communication system
05/1984
05/29/1984CA1168391A1 Demultiplexing plural data streams
05/29/1984CA1168331A1 Echo canceller
05/22/1984US4450571 Two-way signal transmission and one-way DC power supply using a single line pair
05/22/1984US4450555 Device for minimizing far-end crosstalk between half-duplex digital transmission lines
05/16/1984EP0108702A2 Serial to parallel data conversion circuit
05/16/1984EP0108672A2 Content induced transaction overlap communication system
05/08/1984US4447908 Method of transmitting binary data sequences and arrangement for enabling the rapid determination of the end of a transmitted binary data sequence
05/08/1984CA1167184A1 Synchronous/asynchronous data communication arrangement
04/1984
04/26/1984WO1984001679A1 A method of transferring an additional information channel across a transmission medium
04/24/1984US4445193 Bisynchronous host/terminal communication system with non-clock-generating modem & PLL generated clock signal
04/17/1984US4443882 Single terminal negative capacitance generator for response time enhancement
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
04/04/1984EP0104294A1 Data transmission system
03/1984
03/27/1984CA1164591A1 Communication system having an information bus
03/20/1984US4438511 Packetized ensemble modem
03/20/1984US4438425 Multiple signal transmitting apparatus for automobiles
03/13/1984US4437168 Communication control unit
03/13/1984US4436956 Switchable bandpass filter
03/13/1984CA1163734A1 Subscriber terminal for use in a time shared bidirectional digital communication network
03/06/1984CA1163385A1 Method of and apparatus for transmitting data in a synchronous data network
02/1984
02/28/1984CA1163025A1 Service integrated digital transmission system
02/15/1984EP0100662A2 Digital communication system
02/15/1984EP0100608A2 Time compression multiplex digital transmission system
02/08/1984EP0100169A2 Time compression multiplex digital transmission system
01/1984
01/31/1984US4429384 Communication system having an information bus and circuits therefor
01/31/1984CA1161503A1 Receiver apparatus for converting optically encoded binary data to electrical signals
01/17/1984CA1160774A1 Service integrated transmission system
01/17/1984CA1160771A1 Service integrated, digital transmission system
01/17/1984CA1160770A1 Service integrated digital transmission system operating in time multiplex
01/17/1984CA1160769A1 Service integrated digital signal transmission system
01/17/1984CA1160768A1 Service integrated digital transmission system
01/17/1984CA1160711A1 Multi-master station, multi-channel digital communication system with channel selection provided at each terminal
01/11/1984EP0098260A2 Circuit arrangement for controlling the synchronous transmission of data
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