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)
09/1985
09/25/1985EP0155348A2 Method for signal transmission in a length or angle measurement device and device for carrying out the method
09/24/1985US4543664 Direct current coupled data transmission
09/24/1985US4543496 Data converter and line driver for a digital data communication system
09/24/1985CA1194169A1 Coding for odd error multiplication in digital systems with differential coding
09/24/1985CA1194167A1 Digital duplex communication system
09/24/1985CA1194138A1 Terminal arrangement for a duplex transmission system
09/18/1985EP0155058A2 A method of, and a circuit for, estimating true data from distorted digital data signals
09/18/1985EP0155049A1 Transmission system for the transmission of data signals in a modulation band
09/18/1985EP0155048A1 Data transmission system
09/17/1985US4542517 Digital serial interface with encode logic for transmission
09/17/1985US4542420 Manchester decoder
09/17/1985CA1193733A1 Frequency-independent, self-clocking encoding technique and apparatus for digital communications
09/17/1985CA1193689A1 Circuitry for allocating access to a demand-shared bus
09/17/1985CA1193688A1 Circuitry for allocating access to a demand-shared bus
09/12/1985WO1985004064A1 Increased bit rate optical data stream
09/11/1985EP0154565A2 Modem
09/11/1985EP0154086A2 Data recovery circuit
09/10/1985US4540947 FM Signal demodulating apparatus
09/10/1985US4540897 Digital modulation signal reading device
09/10/1985CA1193338A1 Circuitry for allocating access to a demand-shared bus
09/10/1985CA1193326A1 Microwave oven with rotary antenna
09/04/1985EP0153708A2 Multi-level decision circuit
09/03/1985US4539691 Method and apparatus for encoding a binary digital information signal
09/03/1985US4539690 Automatic and adaptive digital nonlinear decision feedback equalizer
09/03/1985US4539689 Fast learn digital adaptive equalizer
09/03/1985US4539680 Chip to chip information bit transmission process and device
09/03/1985US4539675 Echo canceller
09/03/1985CA1193016A1 Method and apparatus for n-to-m encoding
09/03/1985CA1193015A1 Method and apparatus for encoding a digital signal with low dc component
08/1985
08/28/1985EP0152854A1 Method and arrangement for detecting errors in a CMI-coded binary information flow
08/28/1985EP0152423A1 Maintenance response signalling arrangement for a digital transmission system.
08/28/1985EP0044311B1 Clock derivation circuit for double frequency encoded serial digital data
08/27/1985US4538286 Data rate conversion and supervisory bit insertion in a data system
08/27/1985US4538283 Adaptive equalizer suitable for use with fiber optics
08/27/1985US4538236 Adaptive digital signal coring circuit
08/27/1985CA1192643A1 Wideband transceiver with emi suppression
08/27/1985CA1192634A1 Coupling an electrical signal to transmission lines
08/21/1985EP0151633A1 An interruptible voltage-controlled oscillator.
08/21/1985EP0151616A1 Control signalling arrangement for a digital transmission system.
08/20/1985US4536872 Telecommunication system for transmitting data information by means of a digital exchange
08/20/1985US4536742 Method of encoding a stream of data bits, device for carring out the method, and device for decoding a stream of data bits
08/20/1985US4536740 Doublet detector for data recording or transmission
08/20/1985CA1192313A1 Pulse signal transmission system
08/20/1985CA1192309A1 Method and apparatus for encoding and decoding a binary digital information signal
08/20/1985CA1192270A1 Method and circuit for detecting a training signal
08/15/1985WO1985003612A1 Self-synchronization scrambler
08/15/1985WO1985003611A1 Self-synchronizing descrambler
08/15/1985WO1985003592A1 Parity checking device
08/14/1985EP0151459A2 Code modulation system
08/14/1985EP0151453A2 Correction device for first and second order amplitude distortion of the spectrum of a digital signal
08/14/1985EP0151430A2 Detector
08/13/1985US4535451 Fourth-order digital multiplex system for transmitting a plurality of digital signals at a nominal bit rate of 44 736 kbit/s
08/13/1985US4535443 Terminal arrangement for a duplex transmission system
08/13/1985US4535306 Phase-locked loop detecting circuit
08/07/1985EP0150862A2 Self-synchronizing scrambler
08/07/1985EP0150861A2 Self-synchronizing descrambler
08/06/1985US4534064 Fault location arrangement for digital optical transmission system
08/06/1985US4534039 Dataset powered by control and data signals from data terminal
08/06/1985US4534038 Coupling an electrical signal to transmission lines
08/06/1985US4534037 Method and apparatus for scrambled pulse-code modulation transmission or recording
08/06/1985CA1191561A1 Synchronous data transmission equipement
07/1985
07/31/1985EP0150083A2 Apparatus for encoding n-bit information words into m-bit code words, apparatus for decoding m-bit code words into n-bit information words
07/31/1985EP0150082A2 Method of transmitting information, encoding device for use in the method, and decoding device for use in the method
07/31/1985EP0150072A2 Decoder
07/31/1985EP0149785A1 Method and circuit arrangement in the form of an adaptive transversal filter for processing digital signals
07/31/1985EP0045749B1 Selfsynchronizing clock derivation circuit for double frequency encoded digital data
07/30/1985CA1191210A1 Method of phase-synchronising a transit exchange in a digital telecommunication network
07/24/1985EP0149280A1 Arrangement for transmitting data between two parts rotatable with respect to one another
07/23/1985US4531239 Optical receiver having collision detection function
07/23/1985US4531223 Clock derivation circuits
07/23/1985US4531221 Premodulation filter for generating a generalized tamed frequency modulated signal
07/23/1985US4531220 Receiver for a data transmission modem, comprising an echo canceller and an equalizer
07/23/1985US4531153 Method and apparatus for encoding and decoding a binary digital information signal
07/23/1985US4531022 Device for generating binary digit pseudo-random sequences
07/17/1985EP0148263A1 Probabilistic scrambler and method of probabilistic scrambling
07/17/1985EP0148191A1 Digital communications system
07/16/1985US4530094 Coding for odd error multiplication in digital systems with differential coding
07/16/1985US4530088 Group coding system for serial data transmission
07/16/1985CA1190653A1 Digital waveform conditioning circuit
07/10/1985EP0148082A2 Driver for differential signal transmission
07/10/1985EP0147677A2 Method of coding to minimize delay at a communication node
07/10/1985EP0147658A2 Arrangement for improving parity counting
07/09/1985US4528550 Method and apparatus for code conversion of binary of multilevel signals
07/09/1985US4528512 Timing synchronizing circuit for demodulators
07/09/1985CA1190324A1 Byte oriented dc balanced (0,4) 8b/10b partitioned block transmission code
07/09/1985CA1190288A1 Device for recovery of clock frequency in digital transmission
07/04/1985WO1985002962A1 Fast recovery bias circuit
07/03/1985EP0146979A1 Method and system for determining the optimum position of the reference coefficient of an adaptive equalizer
07/03/1985EP0146609A1 Manchester decoder
07/02/1985US4527277 Timing extraction circuit
07/01/1985EP0072857A4 Data communication system.
06/1985
06/26/1985EP0146043A2 Arrangement for keying a single current line at the transmitting side
06/25/1985US4525849 Data transmission facility between two asynchronously controlled data processing systems with a buffer memory
06/25/1985US4525848 Manchester decoder
06/25/1985US4525845 Balanced circuit for connecting receiver and transmitter to transmission line
06/25/1985US4525835 Duplex radio system utilizing time compression expansion
06/25/1985US4525684 Auto-equalizer apparatus
06/20/1985WO1985002733A1 Fiber optic digital data transmitting system
06/19/1985EP0144979A2 Method of measuring the bit error rate of binary digital signals
06/19/1985EP0144558A2 CMI coder
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