Patents for H04L 25 - Baseband systems (55,083)
07/1986
07/03/1986WO1986003914A1 Circuit switching devices
07/02/1986EP0186462A2 A method for detection of manchester-encoded signals
07/02/1986EP0186420A2 Communication data systems
07/02/1986CA1207034A Adaptive equalizer
07/01/1986US4598412 Binary digital data signal reproducing circuit in digital data transmission system
07/01/1986US4598267 Method and apparatus for converting a digital signal
06/1986
06/24/1986US4597089 Single pulse fast learn modem
06/24/1986US4597088 Equalizer for the correction of digital signals with compensation of precursor and postcursor interferences
06/24/1986US4597077 Integrated voice/data/control switching system
06/24/1986US4596984 Digital data input circuit
06/19/1986WO1986003636A1 Receiver having a self biasing direct coupled data limiter
06/17/1986US4596048 Communication system
06/17/1986US4596026 Asynchronous data clock generator
06/17/1986US4596023 Balanced biphase transmitter using reduced amplitude of longer pulses
06/17/1986CA1206204A1 Optical receiver having collision detection function
06/11/1986EP0184373A1 Flexible regenerator
06/11/1986EP0184325A2 Duplex transmission system using high reliability data waveforms
06/11/1986EP0184109A1 Method and arrangement for signalling over a digital transmission link
06/11/1986EP0184108A1 Method and arrangement for signalling over a digital transmission link by substituting messages by transmitted data
06/11/1986EP0184107A1 Method for signalling over a digital transmission link and arrangement for carrying out the method
06/11/1986EP0129542A4 Cmos circuit using transmission line interconnections.
06/05/1986WO1986003356A1 Data modem system
06/04/1986EP0101713B1 Method and apparatus for synchronising the phase of a transit exchange in a digital telecommunication network
06/03/1986CA1205586A1 Apparatus for receiving high-speed data in packet form
06/03/1986CA1205530A1 Duplex signaling circuit
05/1986
05/27/1986US4592072 Decoder for self-clocking serial data communications
05/27/1986US4592033 Apparatus for improving the data transmission rate in a telemetry system
05/21/1986EP0181517A1 Demodulator for an asynchronous binary signal
05/21/1986EP0181346A1 High-speed digital loop transceiver
05/20/1986US4590600 Dynamic digital equalizer
05/20/1986CA1204823A1 Signal transmission system
05/14/1986EP0181030A1 Arrangement for supervising a CMI-code converter
05/13/1986US4588905 Digital waveform conditioning circuit
05/13/1986CA1204514A1 Interface for serial data communications link
05/07/1986EP0180403A2 Apparatus and method for encoding and decoding a binary data stream
05/07/1986EP0180066A2 Multidrop modem communication system
05/06/1986US4587444 Variable-threshold-type differential signal receiver
04/1986
04/29/1986US4586189 Asynchronous to synchronous data interface
04/29/1986US4586186 Maintenance response signalling arrangement for a digital transmission system
04/29/1986US4585952 Digital waveform shaping circuit
04/29/1986CA1203859A1 Apparatus and method for adjusting the receivers of data transmission channels
04/29/1986CA1203858A1 Adaptive equalizer for digital signals
04/24/1986WO1986002507A1 Satellite telecommunications system
04/23/1986EP0178821A2 Programmable automatic cable equalizer
04/23/1986EP0178720A1 Circuit arrangement for the reception of digital data with an adaptive clock recovery circuit
04/23/1986EP0178622A2 Timing recovery circuit for Manchester coded data
04/22/1986US4584719 Fiber optic workstation datalink interface
04/22/1986US4584696 For the recovery of digital data from an incoming data stream
04/22/1986US4584695 Digital PLL decoder
04/22/1986US4584694 Method and apparatus for estimating baud rate
04/22/1986US4584693 QPSK system with one cycle per Baud period
04/22/1986US4584691 Timed pulse communication system
04/22/1986US4584690 Alternate Mark Invert (AMI) transceiver with switchable detection and digital precompensation
04/22/1986CA1203649A1 Digital transmission system
04/22/1986CA1203632A1 Method and apparatus for transferring digital data
04/16/1986EP0178205A1 Digital multiple-access network
04/16/1986EP0178027A2 Method of transmitting information, encoding devide for use in the method, and decoding device for use in the method
04/16/1986EP0177966A1 Satellite communication system
04/15/1986US4583235 Self-adjusting equalizer configuration which automatically adjusts to the cable length
04/15/1986US4583234 Decision feedback equalizing apparatus
04/15/1986US4583233 Method of monitoring suitability of a transmission path for transmission of digital data signals, and apparatus for use in carrying out the method
04/15/1986US4583091 Serial signal transmission system
04/15/1986US4583007 Failsafe decision circuit
04/09/1986EP0177018A2 Method for data transmission
04/09/1986EP0176685A2 Method for detecting the digital sum variation of a serial data signal
04/09/1986EP0176646A1 Line interface
04/08/1986US4581750 Transmission system for the transmission of binary data symbols
04/08/1986US4581731 Receiver for optical communication
04/08/1986US4581639 Method and apparatus for monitoring suitability of a transmission path for transmission of digital data signals
04/02/1986EP0176015A1 Method for transmitting supplementary information over a digital auxiliary channel and utilisation of the method
04/02/1986EP0175756A1 Two-wire duplex data transmission system
04/01/1986US4580275 Adaptive equalizer for binary signals and method of operating same
04/01/1986US4580263 Signal quality monitoring device
04/01/1986CA1202726A1 Data transmission systems
03/1986
03/27/1986WO1986001955A1 Method and apparatus for processing digital signals prior to recording
03/26/1986EP0175410A1 Monolithic interface circuit between a signal processor and a telecommunication network
03/26/1986EP0175307A1 Regenerator for AMI-coded digital signals with a code rule verification
03/25/1986US4578799 Method and apparatus for recovering data and clock information from a self-clocking data stream
03/25/1986US4578797 In a communications system
03/18/1986US4577331 Multiple rate baseband transmitter
03/18/1986US4577329 Self-adaptive equalizer for baseband data signals
03/18/1986US4577328 Method and circuit for detecting a training signal
03/18/1986US4577155 Data extracting circuit
03/12/1986EP0174125A2 Digital data receiver
03/12/1986EP0174124A2 Fiber optic workstation datalink interface
03/12/1986EP0174005A2 Line equalizer operable in response to an input signal of a variable data rate
03/12/1986EP0173842A2 Self-synchronizing descrambler
03/11/1986US4575863 Fast recovery bias circuit
03/11/1986US4575682 Circuit for establishing accurate sample timing
03/11/1986CA1201769A1 Fault location arrangement for digital optical transmission system
03/05/1986EP0173106A2 Method for the transmission of digital information on connecting lines of telecommunication networks, especially telepone exchanges
03/05/1986EP0172887A1 Increased bit rate optical data stream
03/04/1986US4574382 Variable length character code system
03/04/1986US4574206 Wave-shaping circuit
03/04/1986CA1201504A1 Method and device for teledetection and telemetry of combustible gases in an atmosphere
02/1986
02/27/1986WO1986001353A1 Optical receivers
02/26/1986EP0172694A1 Optical receivers
02/26/1986EP0172532A2 Waveform shaping apparatus
02/26/1986EP0172195A1 Parity checking device
02/26/1986EP0104193B1 Insulated device for the transmission of binary information through an electric line