Patents
Patents for H04L 5 - Arrangements affording multiple use of the transmission path (28,368)
06/1994
06/09/1994WO1994013077A1 Ofdm transmission with polarization multiplexing
06/08/1994EP0600193A2 Method for broadcasting digital data, especially towards mobile stations, with a high bit rate, with time-frequency interweaving and analogous synchronisation
06/07/1994US5319799 Signal oscillation method for time-division duplex radio transceiver and apparatus using the same
06/07/1994US5319735 Embedded signalling
06/07/1994US5319635 Electronic duplex communication system
06/01/1994EP0599632A2 Apparatus and methods for wireless communications
06/01/1994EP0598745A1 Modem
06/01/1994EP0430955B1 Communication system
05/1994
05/31/1994US5317571 Method for determining the transmission time between remote and central terminal stations in a point-to-multipoint bidirectional transmission network
05/26/1994WO1994011955A1 Adaptive data rate modem
05/24/1994US5315584 System of data transmission by sharing in the time-frequency space with channel organization
05/24/1994CA2027495C Procedure and apparatus for amplification of a burst signal
05/18/1994EP0458802B1 Process for operating a fail safe multicomputer system
05/17/1994US5313492 Data modulator/demodulator
05/17/1994US5313467 Integrated communication link having a dynamically allocatable bandwidth and protocol for transmission of allocation information over the link
05/17/1994US5313169 Method of realigning the local oscillators of a receiver and device for implementing the method
05/11/1994EP0596523A2 High speed data transfer over twisted pair cabling
05/07/1994CA2101860A1 High speed data transfer over twisted pair cabling
05/04/1994EP0594755A1 Power distribution line communication system for reducing effects of signal cancellation
05/03/1994US5309474 Communication system
04/1994
04/28/1994WO1994009581A1 Full duplex ethernet
04/27/1994WO1994010772A1 A method and means for transmultiplexing signals between signal terminals and radio frequency channels
04/27/1994CA2117336A1 A method and means for transmultiplexing signals between signal terminals and radio frequency channels
04/26/1994US5307192 Process for bidirectional transmission of data
04/20/1994CN2162748Y Two-way duplex operation colony communication station changed by single operation
04/19/1994US5305306 Station-to-station full duplex communication in a token ring local area network
04/13/1994EP0591926A2 Communication system and method
04/12/1994US5303261 High-throughput pipelined communication channel for interruptible data transmission
04/12/1994US5303227 Method and apparatus for enhanced modes in SPI communication
04/12/1994CA1328510C Feature negotiation protocol and dynamically adjustable retraining sequence for a high speed half duplex modem
04/06/1994CN2161025Y Two-wire remote transmission apparatus
04/05/1994US5301363 Method and apparatus for adaptive power adjustment of mixed modulation radio transmission
04/05/1994US5301192 Temporary information storage system comprising a buffer memory storing data structured in fixed or variable length data blocks
03/1994
03/30/1994EP0589683A1 Method for frequency comb spread spectrum modulation
03/30/1994EP0589599A1 Multiplexed signal transmission system
03/30/1994EP0589594A2 Frequency-multiplexed cellular telephone cell site base station and method of operating the same
03/29/1994CA2005972C Duplex communications method and system
03/23/1994EP0588701A1 Method and device for simultaneous transmission of two heterochronous digital signals via the same link
03/22/1994US5297186 Device and method for on-line adaptive selection of baud rate and carrier frequency
03/17/1994WO1994006231A1 Digital signal transmission system using frequency division multiplex
03/16/1994CN1083995A Automatic gain control system for a high defination television signal receiver including an adaptive equalizer
03/15/1994US5295156 Modem
03/15/1994US5295132 Multiplex transmission apparatus with transmission line fault detection
03/02/1994EP0584918A1 Method of detecting the disconnection of a transmission line
03/02/1994EP0584904A2 A system and method for radio disconnect and channel access for digitised speech trunked radio systems
03/02/1994EP0584862A1 Multiplexing arrangement
02/1994
02/23/1994EP0583968A2 Automatic gain control system for a high definition television signal receiver including an adaptive equalizer
02/23/1994EP0583716A2 Process for bidirectional signal transmission
02/22/1994US5289464 Frequency-multiplexed cellular telephone cell site base station and method of operating the same
02/22/1994US5289459 Duplex data transmission
02/17/1994WO1994003901A1 Fault-tolerant, high-speed bus system and bus interface for wafer-scale integration
02/02/1994EP0581101A1 Audio/video communications processor
01/1994
01/26/1994EP0685132A4 Fully meshed cdma network for personal communications terminals.
01/25/1994US5282222 Method and apparatus for multiple access between transceivers in wireless communications using OFDM spread spectrum
01/25/1994US5282210 Time-division-multiplexed data transmission system
01/25/1994US5282209 Data word transmission system utilizing at least two transmission channels
01/25/1994CA2025604C Multi-slot call relocation control method and system
01/19/1994EP0579269A1 V.22 bis compatible handshaking procedure for a high speed half duplex modem
01/19/1994CN1081044A Method and apparatus for partial response demodulation
01/18/1994US5280498 Packet data communication system
01/18/1994US5280473 Modem with echo cancellation
01/12/1994CN1080799A Synchronous reconnection method and equipment using positive (or negative) code quick adjusting integral frame structure
01/11/1994CA2009556C Communication terminal connection system
01/05/1994EP0576586A1 Automatic frequency selection in a bi-directional cable television system
12/1993
12/28/1993US5274636 Automatic multiplex data link system, symbol encoder decoder therefor
12/28/1993US5274628 Multisignal synchronizer with shared last stage
12/21/1993US5272724 Wideband signal synchronization
12/21/1993US5272697 Apparatus and method for time multiplexing a resource among a plurality of entities
12/21/1993US5272694 Synchronization of terminal stations in a multirate half-duplex tree-structured network
12/21/1993US5272555 Bidirectional optical transmission method and apparatus therefor
12/07/1993US5268934 Asynchronous-to-synchronous converter
12/07/1993US5268761 Automatic gain control system for a high definition television signal receiver including an adaptive equalizer
12/01/1993EP0536334A4 System and method for generating signal waveforms in a cdma cellular telephone system
11/1993
11/30/1993US5267300 High speed digital data transmission over switched voice network
11/30/1993US5267263 Method and apparatus for interfacing synchronous data devices over an asynchronous communications channel
11/30/1993US5267236 Asynchronous parallel data formatter
11/30/1993US5267069 Fiber optic data link system
11/30/1993CA1324846C Regenerative node for a communications network
11/28/1993CA2097144A1 Non-interruption transmission line switching system in a duplex transmission network
11/25/1993WO1993023928A1 Power line coupler modem device for communication over electrical lines
11/24/1993EP0344169B1 Transmission system
11/23/1993US5265128 Method and device for the digital transmission of information in short-wave radio networks
11/23/1993US5265105 Decoding circuit for inhibiting error propagation
11/23/1993US5265095 Method for inputting signals into and outputting signals out from subareas of the auxiliary signals of transport modules of a synchronous digital signal hierarchy
11/18/1993EP0570322A1 Power-saving, full duplex nodal communications systems
11/18/1993EP0570210A2 System for controlling frequency multiplexing modems
11/18/1993EP0569554A1 Transmission of multiple carrier signals in a nonlinear system
11/16/1993US5263196 Method and apparatus for compensation of imbalance in zero-if downconverters
11/16/1993US5263022 Multiplex transmission method
11/16/1993US5263018 Apparatus for time division multiplexed processing of plural QAM signals
11/09/1993US5260701 Bidirectional inductive transmission of data with slave station supplied by the master
11/09/1993CA1324193C High speed half duplex modem with fast turnaround protocol
11/03/1993EP0568241A2 Network for establishing multiple digital channels on-demand
11/03/1993EP0567889A2 System for bidirectional data transmission between several fixed stations and one mobile station
10/1993
10/26/1993US5257160 Serial signal transmission device and control method for determining polarity
10/20/1993EP0566139A1 Communications system for communications between an electronic control apparatus and a test apparatus
10/20/1993CN1077581A Single point multiple address radio telephone stystem with digital processing
10/19/1993US5255111 Full-duplex optical transmission system
10/19/1993US5255086 Method and apparatus for RF data transfer in a CATV system
10/19/1993CA2004030C Spectrally efficient tdm duplex communication system