Patents
Sitemap › H04 - Electric communication technique › H04L - Transmission of digital information, e.g. telegraphic communication › H04L 25 - Baseband systems
Patents for H04L 25 - Baseband systems (55,083)
10/1987
10/07/1987EP0239731A2 Differential transceiver with line integrity detection
10/07/1987CN87102279A Adaptive blind equalization method and device
10/07/1987CN87102265A Method and apparatus for channelized serial transmission of redundantly encoded binary data
10/07/1987CN86100523A Baseband signal numeral shaping network
10/06/1987US4698826 Clock repeater for triplicated clock distributor
10/06/1987US4698809 Method and apparatus for the channelized serial transmission of redundantly encoded binary data
10/06/1987US4698628 Method and apparatus for transmission of data with data reduction
10/01/1987DE3610904A1 Adaptive decision feedback equalisation of line signals in electrical communications
10/01/1987DE3610523A1 Method for asynchronous serial data transmission and arrangement to carry out the method
10/01/1987DE3610383A1 Adaptive decision feedback equaliser
09/1987
09/30/1987EP0239153A2 Adaptive blind equalization method and device
09/29/1987US4697275 Receiving circuit for signal transmission systems
09/29/1987US4697265 Error monitor circuit
09/22/1987US4695998 Method and circuit arrangement for the compensation of echo signals
09/22/1987US4695991 Reading information stored in multiple frame format
09/22/1987US4695969 Equalizer with improved performance
09/22/1987CA1227246A1 Method and device for measuring phase jitter on a transmission channel
09/17/1987DE3608357A1 Multiplexing and nB/mB coding arrangement
09/16/1987EP0237195A1 Multiplex system including shielded cable
09/15/1987US4694504 Synchronous, asynchronous, and data rate transparent fiber optic communications link
09/15/1987US4694468 Apparatus useful in channel equalization adjustment
09/15/1987US4694421 Interface system which selectively provides impedance matching between a host computer and a control circuit
09/15/1987US4694291 Device for transmitting a clock signal accompanied by a synchronization signal
09/15/1987CA1226960A1 Rate adaptation circuit and method for asynchronous data on digital networks
09/15/1987CA1226949A1 Data transmission system
09/15/1987CA1226918A1 Two-wire duplex data transmission system
09/15/1987CA1226905A1 Method and system for digital data transmission
09/09/1987EP0235649A1 Circuit arrangement for serial data transmission between several stations
09/09/1987EP0235648A1 Circuit arrangement for serial data transmission between several stations
09/09/1987EP0235300A1 Radio data transmission system
09/08/1987US4692687 Optical pulse receiving device
09/08/1987CA1226646A1 Digital data communication apparatus
09/02/1987EP0234948A2 Data transmission system
09/02/1987EP0234453A1 Circuit arrangement for serial data transmission between several stations
09/02/1987EP0234070A2 Apparatus for fixed-length binary encoding and decoding
09/01/1987US4691384 Intrinsically safe multi-drop communications link
09/01/1987CA1226347A1 Selective fading protection system
08/1987
08/26/1987EP0233679A1 Non intrusive channel impairment analyser
08/25/1987US4689802 Digital pulse width modulator
08/25/1987US4689790 Method and apparatus for remote signalling on a digital transmission link
08/25/1987CA1226067A1 Multi-function data signal processing method and apparatus
08/20/1987DE3604835A1 Method for transmitting useful information via a transmission path
08/19/1987EP0232315A1 Asynchronous addressable electronic key telephone system
08/19/1987EP0124576B1 Apparatus for receiving high-speed data in packet form
08/18/1987US4688234 Apparatus and method for producing a signal-to-noise ratio figure of merit for digitally encoded-data
08/18/1987US4688232 Decoder for Manchester encoded data
08/18/1987US4688226 Code error overlaying in digital transmission signals
08/18/1987US4688019 Signal transmission system
08/18/1987US4688016 Byte-wide encoder and decoder system for RLL (1,7) code
08/18/1987CA1225743A1 Soft decision convolutional code transmission system
08/18/1987CA1225711A1 Method and apparatus for the compensation of echo signals
08/18/1987CA1225710A1 Self-synchronizing scrambler
08/18/1987CA1225709A1 Self-synchronizing descrambler
08/18/1987CA1225704A1 Dynamic digital equalizer
08/12/1987EP0232043A2 Scrambling data signals
08/12/1987EP0231202A1 Circuit arrangement to align the pcm groups entering a communication branch point with another
08/11/1987US4686686 Line equalizer operable in response to an input signal of a variable data rate
08/11/1987US4686676 Apparatus and method for determining true data in a digital data stream from distorted data
08/11/1987US4686528 Method of encoding and decoding data signals
08/05/1987EP0230900A1 Device for clock recovery
08/05/1987EP0230714A2 Data transmission system
08/05/1987EP0230559A1 Method for clock-synchronization of a signal receiver
07/1987
07/30/1987EP0152423A4 Maintenance response signalling arrangement for a digital transmission system.
07/29/1987EP0230310A2 Velocity error correcting circuit
07/29/1987EP0229948A2 Circuit for serial data transmission
07/27/1987EP0165242A4 Fiber optic digital data transmitting system.
07/23/1987EP0151616A4 Control signalling arrangement for a digital transmission system.
07/22/1987CN86107710A Anti-attenuation frame synchronization method
07/21/1987US4682342 Signal transmission system
07/21/1987US4682334 Synchronous data transmission method and device implementing same
07/21/1987US4682325 System for selectively coupling a plurality of stations into a single communications path
07/21/1987US4682123 Digital voice and data frequency modulation circuit
07/21/1987US4681111 Analog and digital telemetry system for an implantable device
07/21/1987CA1224550A1 Method of controlling a supervisory arrangement in a digital transmission system
07/21/1987CA1224542A1 Demodulator for multilevel amplitude modulation system
07/21/1987CA1224541A1 Circuit for establishing accurate sample timing
07/16/1987DE3600795A1 Digital communications system
07/15/1987EP0228534A2 Electrical apparatus for increasing digital data density by signal processing
07/14/1987CA1224274A1 Manchester decoder
07/14/1987CA1224273A1 Method and apparatus for converting a digital data
07/14/1987CA1224272A1 Method and apparatus for converting a digital signal
07/14/1987CA1224266A1 Selective scrambling in the compact disc system
07/09/1987EP0216903A4 Telemetry system for an implantable device.
07/08/1987EP0228250A2 Coupling Discriminator
07/08/1987EP0228213A2 System for transmitting and receiving asynchronous nonhomogeneous variable width parallel data over a synchronous high speed serial transmission media
07/08/1987EP0227759A1 Transmission system
07/07/1987US4679252 Fiber optic receiver having a method and an apparatus for data clock extraction
07/07/1987US4679227 Ensemble modem structure for imperfect transmission media
07/07/1987US4679209 Digital line receiver
07/07/1987US4679191 Variable bandwidth switching system
07/07/1987US4678939 Output circuit for signal transmission systems
07/07/1987CA1223928A1 Arrangement for restoring the l.f. content of a digital signal
07/01/1987EP0227521A1 Method for the CMI coding of digital information arranged in frames, apparatus for carrying it out and its use in consumer information for very fast digital networks
07/01/1987EP0226646A1 Digital partial response filter
06/1987
06/30/1987US4677646 Dataset powered by control and data signals from data terminal
06/30/1987US4677644 Method and apparatus for remote signalling by substituting a message for the data conveyed by a digital transmission link
06/30/1987US4677627 Error correction scheme
06/30/1987US4677319 Electrical circuit for interfacing high frequency signals to the logic levels of any logic family having a switching voltage at the mean of the "0" and "1" voltages
06/25/1987DE3545263A1 Method for AC voltage coupled transmission of digital signals on metal conductor pairs via connections in each case of differing lengths
06/23/1987US4675884 Decoding circuit
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