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)
11/1986
11/04/1986US4621173 Method of reducing the convergence time of an echo canceller and apparatus for carrying out said method
11/04/1986CA1213649A1 Secondary channel method and apparatus
10/1986
10/29/1986EP0199338A2 Repeater circuit
10/28/1986US4620294 Digital signal processor modem
10/21/1986US4618952 Communication of unipolar pulses
10/21/1986CA1213017A1 Method for transmitting digital signals
10/21/1986CA1213016A1 Expandable and contractible local area network system
10/15/1986EP0197541A2 System for controlling operation mode of modulator/demodulator
10/15/1986CN86101645A 信号传送系统 Signal transmission system
10/15/1986CN86100949A Subscriber rf telephone system for providing multiple speech and/or data signals simultaneously over either a single or a plurality of rf channels
10/14/1986CA1212742A1 Communication control apparatus for digital devices
10/14/1986CA1212736A1 Noise-neutralizing digital interface circuit
10/08/1986EP0196549A2 Method for generating an equalizer control signal, and circuit arrangement for carrying out the method
10/07/1986US4616314 Microcomputer controlled data receiver
09/1986
09/24/1986EP0195100A1 Method and apparatus for data transmission between a transmission arranged in a borehole and a surface-mounted transceiver
09/23/1986US4613975 Selective fading protection system
09/23/1986US4613731 In a data communication system
09/17/1986EP0194738A1 Multi-stage echo canceller
09/16/1986US4612634 Integrated digital network (IDN)
09/16/1986CA1211528A1 Fail-safe transmission system
09/10/1986CN86100444A Multi-stage echo canceller
09/03/1986EP0193141A2 Method of and apparatus for use in synchronizing devices
08/1986
08/26/1986US4608630 Method and apparatus for transmitting data words asynchronously from one microprocessor to another in form of timing intervals
08/26/1986CA1210536A1 Digital communication station signaling control
08/26/1986CA1210535A1 Digital dual channel communication terminal
08/19/1986US4607139 Interface module for telephone lines
08/12/1986US4606046 Converter/line driver circuit for a line repeater
08/12/1986US4606044 Adjusting data transmission rate based on received signal quality
08/05/1986US4604740 Digital transceiver for full-duplex transmission of binary signals over a common line
08/05/1986US4604620 Information transmission system
08/05/1986US4604618 Time-division multiplex transmission system
07/1986
07/30/1986EP0189369A1 Data transmission system
07/30/1986EP0188443A1 An interface circuit for interfacing between asynchronous data in start/stop format and synchronous data
07/30/1986CN85109560A 数字传输系统 Digital transmission system
07/29/1986CA1208817A1 Fourth-order digital multiplex system for transmitting a plurality of digital signals at a nominal bit rate of 44 736 kbit/s
07/29/1986CA1208736A1 System and method for name-lookup in a local area network data communication system
07/29/1986CA1208733A1 Initialization device for echo cancelling device and application thereof to remote echos
07/16/1986EP0187339A2 Low power line driving digital transmission system
07/15/1986US4601045 Modulator-demodulator method and apparatus with efficient bandwidth utilization
07/15/1986CA1207925A1 Process for time-sequenced multiplexing of data on a transmission medium and devices to implement this process
07/08/1986US4599719 Full duplex data set with half-duplex emulation
07/03/1986WO1986003870A1 Hand-held communication device and system employing such devices
07/02/1986EP0186142A2 Two wire bidirectional digital transmission system
07/02/1986EP0186132A2 Digital switching system
07/02/1986CA1207052A Remote signalling apparatus
07/01/1986US4598410 Bidirectional repeater apparatus
07/01/1986US4598396 Duplex transmission mechanism for digital telephones
07/01/1986US4598172 Telecommunication terminal
06/1986
06/25/1986EP0185610A2 Device for contactless signal and energy transmission
06/25/1986EP0185332A2 Transceiver
06/24/1986US4597077 Integrated voice/data/control switching system
06/24/1986US4597073 Full-duplex split-speed data communication unit for remote DTE
06/24/1986CA1206647A1 Telecommunication terminal
06/17/1986CA1206215A1 Demodulation device for composite psk-psk modulated waves
06/11/1986EP0184325A2 Duplex transmission system using high reliability data waveforms
06/11/1986EP0184221A2 Hierarchical data transmission system
06/11/1986EP0184210A1 Data transmission arrangement
06/11/1986EP0183926A2 Method for the transmission of digital information in a radiotelephone network
06/11/1986EP0183871A1 Two-way cable-television system
06/10/1986US4594707 High speed limited distance multiplexed data communications modem using a single twisted pair of conductors
06/10/1986CA1205883A1 Digital communication system
06/10/1986CA1205876A1 Fir-type balance filter incorporated in the transmitter-receiver unit in a telecommunication system
06/03/1986CA1205530A1 Duplex signaling circuit
05/1986
05/21/1986EP0181346A1 High-speed digital loop transceiver
05/13/1986US4589108 Multiplexer, demultiplexer and multiplexing-demultiplexing equipment with reconfigurable frames
05/06/1986CA1204232A1 Synchronous communications multiplexer
04/1986
04/29/1986US4586189 Asynchronous to synchronous data interface
04/22/1986US4584690 Alternate Mark Invert (AMI) transceiver with switchable detection and digital precompensation
04/22/1986CA1203647A1 Digital transceiver for full-duplex transmission of logic signals on a single line
04/15/1986US4583232 Carrier current digital data transceiver
04/15/1986US4583214 Key telephone transmission system
04/15/1986US4583124 Facsimile communication control system
04/08/1986US4581588 Switchable bandpass filter
04/08/1986US4581586 Crosstalk reduction in unbalanced QPSK detectors
04/08/1986US4581492 Digital duplex communication system
04/02/1986EP0176098A2 Digital transmission system
04/02/1986EP0175873A2 Scannerless message concentrator and communications multiplexer
04/02/1986EP0175756A1 Two-wire duplex data transmission system
03/1986
03/27/1986WO1986001959A1 Bidirectional repeater apparatus
03/26/1986EP0175656A2 System for the two-way line transmission of electrical signals and an indicator instrument incorporating such a system
03/26/1986EP0175631A2 Integrated digital network
03/25/1986US4578544 Initialization device for echo cancelling device and application thereof to remote echos
03/18/1986US4577331 Multiple rate baseband transmitter
03/18/1986US4577327 Data transmission including a repeater
03/11/1986CA1201769A1 Fault location arrangement for digital optical transmission system
03/04/1986CA1201526A1 Packet data transmission system
02/1986
02/18/1986US4571719 FIR-Type balance filter incorporated in the transmitter-receiver unit in a telecommunication system
02/12/1986EP0171125A2 Circuit arrangement for transmitting binary signals
02/11/1986US4570036 For data signals
02/05/1986EP0169912A1 Data transmission system
02/04/1986US4569062 Interface circuit for interfacing between asynchronous data in start/stop format and synchronous data
02/04/1986US4569047 Signal transmission system
02/04/1986US4569045 3-Wire multiplexer
01/1986
01/28/1986US4567586 Service integrated digital transmission system
01/21/1986US4566132 Multifunction ultra-high frequency circuit and means using such a circuit
01/16/1986WO1986000482A1 An interface circuit for interfacing between asynchronous data in start/stop format and synchronous data
01/16/1986WO1986000480A1 Adaptive hybrid circuit
01/14/1986CA1199385A1 Content induced transaction overlap communication system
01/08/1986EP0167351A2 Signal multiplexing circuit
01/08/1986EP0166892A1 TDMA print-to-multipoint communication system
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