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)
09/1990
09/12/1990CN1045319A Digital signal transmission system
09/11/1990US4956854 Digital pattern decoder
09/05/1990EP0384920A1 Circuit for digitally adjusting the gain of a digitally adjustable receiver amplifier
09/05/1990EP0204745B1 Data modem system
09/04/1990US4955081 Light communication system
09/04/1990US4955040 Method and apparatus for generating a correction signal in a digital clock recovery device
09/04/1990CA1273691A1 Circuit arrangement for serial data transmission between a plurality of subscriber stations
09/04/1990CA1273690A1 Circuit arrangement for serial data transmission between a plurality of subscriber stations
08/1990
08/29/1990EP0384795A1 Method and device for transmitting information between stations of a communication network, especially for a motor vehicle
08/29/1990EP0384258A2 Alternate pulse inversion encoding scheme for serial data transmission
08/28/1990US4953183 Arrangement for combatting intersymbol interference and noise
08/28/1990US4953180 Bit rate adaptation system for digital transmission systems
08/28/1990US4953160 Digital data over voice communication
08/24/1990CA2010763A1 Digital signal transmission system
08/24/1990CA2002783A1 Alternate pulse inversion encoding scheme for serial data transmission
08/23/1990WO1990009713A1 Network interface
08/23/1990DE4013317A1 Stopfverfahren zur reduktion des wartezeitjitters und anordnung zur durchfuehrung des verfahrens Stuffing for the reduction of the waiting time jitter and arrangement for implementing the method
08/22/1990EP0383271A2 Waveform shaping circuit and receiver using same
08/16/1990EP0382243A2 Optical transmission line system
08/09/1990WO1990009070A1 A method of controlling the frequency of a coherent radio receiver and apparatus for carrying out the method
08/09/1990WO1990009069A1 A method of rapidly controlling the frequency of a coherent radio receiver and apparatus for carrying out the method
08/08/1990EP0381637A1 A method of controlling the frequency of a coherent radio receiver and apparatus for carrying out the method
08/08/1990EP0381636A1 A method of rapidly controlling the frequency of a coherent radio receiver and apparatus for carrying out the method
08/08/1990EP0381464A2 Transmitting high-bandwidth signals on coaxial cable
08/08/1990EP0381371A2 A burst mode digital data receiver
08/08/1990EP0214261B1 Signal generation
08/08/1990CN1044561A Method of controlling frequency of coherent radio receiver and apparatus for carrying out method
08/08/1990CN1044560A Method of rapidly controlling frequency of coherent radio receiver and apparatus for carrying out method
08/07/1990US4947406 Communication interface
08/07/1990US4947383 Machine readable markers for cartesian information storage media
08/07/1990CA1272529A1 Apparatus and method for noise reduction in a digital line receiver
08/03/1990CA2007369A1 Transmitting high-bandwidth signals on coaxial cable
08/02/1990DE4001065A1 Redundant block encoded serial data signal synchroniser - stores alternate bits in antiphase clocked shift registers to assemble new codeword bitwise in parallel register
08/01/1990EP0380172A2 Binary data signal transmission system
08/01/1990EP0379901A1 Data-processing apparatus
08/01/1990EP0379640A2 Transmission system for a radio transceiver
08/01/1990CN1044370A Active signalling transmitter control
07/1990
07/31/1990US4945538 Method and apparatus for processing sample values in a coded signal processing channel
07/31/1990US4945264 Interface control circuit with active circuit charge or discharge
07/31/1990US4944299 High speed digital telemetry system for implantable device
07/26/1990WO1990008438A1 Active signalling transmitter control
07/25/1990EP0379375A2 Parallel mode adaptive transversal equalizer for high-speed digital communications system
07/24/1990US4943965 Digital signal decoding method and circuit therefor
07/24/1990US4943926 Method for the analysis and synthesis of binary signals
07/24/1990US4943789 Automatic equalizer for digital transmission
07/24/1990US4943784 Frequency stable digitally controlled driver circuit
07/24/1990US4943739 Non-reflecting transmission line termination
07/24/1990CA1271989A1 Automatic drift control circuit
07/17/1990CA1271846A1 Method of encoding n-bit information words into m-bit code words, apparatus for carrying out said method, method of decoding m-bit code words into n-bit information words, andapparatus for carrying out said method
07/11/1990EP0377335A2 Decoding biphase-coded data
07/10/1990US4941154 Trellis coding method and arrangement for fractional bit rates
07/10/1990US4941153 High-speed digital data communication system
07/10/1990US4941126 Weak/strong bus driver
07/10/1990CA1271531A1 Circuit arrangement for sampling a ternary signal
07/04/1990EP0376554A2 Signal conversion apparatus which reduces quantization errors for telecommunications applications
07/04/1990EP0376335A2 Digital transmission system
07/04/1990EP0376250A1 Self-adaptive equalization device for a differentially coherent demodulation arrangement
07/03/1990US4939750 Adaptive signal discrimination circuit and a method for discriminating high and low level of data signals
07/03/1990US4939747 Digital communication system with addressable repeaters and devices for fault isolation
07/03/1990US4939734 Method and a system for coding and decoding data for transmission
07/03/1990CA1271235A1 Bipolar transistor switching enhancement circuit
06/1990
06/28/1990WO1990007242A1 Apparatus and method for binary data transmission
06/28/1990WO1990007238A1 Metastable-free digital synchronizer with low phase error
06/28/1990DE3942431A1 Frequency and phase detector for NRZ system - has true and inverse clock compared to NRZ data and output differences to setting phase-frequency
06/28/1990CA2005790A1 Digital transmission system
06/27/1990EP0375645A2 Serial link transparent mode disparity control
06/27/1990EP0374214A1 Variable rate rectangular matched filter.
06/27/1990CN1008584B Adaptive equalizer
06/26/1990US4937844 Modem with data compression selected constellation
06/26/1990US4937573 Variable length code and devices for high frequency transmission
06/26/1990US4937568 Signal serial/parallel conversion system
06/26/1990CA1270959A1 Coupling discriminator
06/21/1990DE3842423A1 Method for determining the correlation increments of the Viterbi algorithm
06/20/1990EP0374077A2 Transmission system for telegraphic communications
06/19/1990CA2004827A1 Apparatus and method for binary data transmission
06/19/1990CA1270577A1 Multiconfigurable interface for a computer printer
06/19/1990CA1270526A1 Radio communication receiver with apparatus for altering bit rate of the receiver
06/13/1990EP0372440A2 Digital filter
06/12/1990US4933891 Method and circuit configuration for generating filter coefficients
06/12/1990US4933672 Data transmission system with a digital alarm facility
06/06/1990EP0371106A1 Coupler for galvanically isolated transmission of a two-valued signal by means of a pulse transformer
06/05/1990US4931980 Digital computing device for a data transmission installation using code 2B 1Q or the like
06/05/1990US4931790 Digital remote control method
05/1990
05/31/1990WO1990006030A1 Process and device for transmitting numerical data
05/31/1990WO1990006022A1 Multibit amplitude and phase modulation transceiver for lan
05/31/1990DE3932035A1 Serial data transfer via voltage isolator - has word added to carrier and decoded as bit=parallel at output
05/30/1990EP0370772A2 Digital signal reproducing apparatus
05/30/1990EP0370152A1 Method and device for digital data transmission
05/29/1990US4930127 Method and device for transmitting a digital engineering service channel by means of the parity channel of a digital bit stream transmitted in a code with parity checking
05/23/1990EP0369962A2 Method for processing signals in a channel
05/23/1990EP0369405A2 Bus driver integrated circuit and a clocked inverter for use therein
05/23/1990DE3839422A1 Device for suppressing noise spikes within data bits of a demodulated FSK signal
05/22/1990US4928289 Apparatus and method for binary data transmission
05/16/1990EP0368307A2 Demodulator with composite transversal equalizer and eye detection clock synchronizer
05/16/1990EP0368189A2 Reduction of signal processing requirements in a 2B1Q-code echo canceller or equalizer
05/15/1990US4926472 Reduction of signal processing requirements in a 2B1Q-code echo canceller or equalizer
05/15/1990US4926443 Correction circuit for a digital quadrature-signal pair
05/15/1990US4926442 CMOS signal threshold detector
05/15/1990US4926169 Coder-decoder for purged extended golay (22,7) codes
05/15/1990US4926158 Powered communication link
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