Patents for H04L 25 - Baseband systems (55,083) |
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11/10/1992 | US5162791 Collision detection using code rule violations of the manchester code |
11/05/1992 | DE4109822C1 Data transmission equipment sending plesiochroic useful signals by pulse stuffing - includes substitution signal generator delivering equal values for all bits except frame identification word |
11/04/1992 | EP0511915A1 Method and apparatus for increasing the transmission rates of signals in multi-function borehole cables |
11/04/1992 | EP0511744A2 Multiplex transmission between nodes with acquisition signals and CRC calculation |
11/04/1992 | EP0511708A2 Method and apparatus for communication channel identification and signal restoration |
11/04/1992 | EP0511698A1 Semi-recursive adaptive equalizer |
11/04/1992 | EP0511373A1 Dc-free line code and bit and frame synchronization for arbitrary data transmission |
11/03/1992 | US5161151 System and method for controlling multiplex communications between master station and slave stations |
11/03/1992 | US5160929 System for parallel communication of binary data via trinary transmission lines |
11/03/1992 | CA1309779C Node for a backplane bus |
10/31/1992 | CA2065554A1 Opto-electronic interface for decoding wave division multiplexed manchester gray coded binary signal |
10/29/1992 | WO1992019061A1 Superframes |
10/29/1992 | WO1992019055A1 Data bit to constellation symbol mapper |
10/28/1992 | EP0510976A2 Level independent automatic cable equalizer |
10/28/1992 | EP0510756A2 Sample tuning recovery for receivers using Viterbi processing |
10/28/1992 | EP0510364A2 Repeater station wherein input frame data are accessible |
10/28/1992 | EP0454727A4 Active signalling transmitter control |
10/28/1992 | CN1065762A Apparatus and method of dc offset correction for receiver |
10/27/1992 | US5159610 Trellis precoding for modulation systems |
10/27/1992 | US5159609 Data receiving device with delayed equalization and retroactive time-pulse recovery |
10/27/1992 | US5159565 Method for the determination of fir filter coefficients in equalizers |
10/27/1992 | US5159282 Demodulation apparatus incorporating adaptive equalizer for digital communication |
10/27/1992 | CA2063350A1 Level independent automatic cable equalizer |
10/22/1992 | DE4111301A1 Serial data transmission by supply volage pulse modulation - enables terminal to receive and transmit simultaneously by interruption of current on line via exchange receiver |
10/21/1992 | EP0509680A2 Common mode filtered magnetic connector |
10/20/1992 | US5157690 Adaptive convergent decision feedback equalizer |
10/20/1992 | US5157655 Apparatus for generating a ds-3 signal from the data component of an sts-1 payload signal |
10/20/1992 | US5157651 Apparatus and method for determining line rates |
10/20/1992 | CA1309196C Vehicle multiplex system |
10/15/1992 | WO1992017970A1 Channel codec apparatus and method utilizing flat codes |
10/15/1992 | WO1992017968A1 Data communication network providing power and message information |
10/14/1992 | EP0508885A2 A synchronous decoder for self-clocking signals |
10/14/1992 | EP0508655A2 Equalized eye pattern instrument |
10/14/1992 | EP0508459A2 Digital transmission test system |
10/14/1992 | EP0508407A2 Maximum likelihood sequence estimation for rapidly varying mobile radio communication channels |
10/14/1992 | CN1065367A Clock rate matching in independent networks |
10/13/1992 | US5155745 Synchronizer for asynchronous computer command data |
10/13/1992 | US5155742 Time dispersion equalizer receiver with a time-reversal structure for TDMA portable radio systems |
10/13/1992 | US5155637 Data transmission and detection system |
10/13/1992 | US5155486 Asynchronous serial data receiver with capability for sampling the mid-point of data bits |
10/13/1992 | CA1308811C Method and apparatus for implementing a prml code |
10/09/1992 | WO1992017967A1 Multi-level symbol synchronizer |
10/08/1992 | DE4136205C1 Signal processing circuit for cordless telephone - reduces signal harmonics in data transmission using Manchester decoder to extract information from received triangular signal |
10/07/1992 | EP0507684A1 Communication system, especially for air traffic control |
10/07/1992 | EP0507579A2 Multiplexed transmission between nodes with cyclic redundancy check calculation |
10/07/1992 | EP0507444A2 Data transmission apparatus with error computer and maximal likelihood calculator |
10/06/1992 | US5153466 All monolithic transceiver operative from a low voltage vcc dc supply |
10/04/1992 | CA2064946A1 Communication system applicable namely to air traffic control |
10/01/1992 | WO1992017029A1 Circuit for slicing data |
10/01/1992 | WO1992017017A1 Transmitter end stage |
10/01/1992 | WO1992017016A1 Reception comparator |
10/01/1992 | DE4110533A1 Information transmission via two binary transmission channels - using simultaneous transmission of data signal and inverted data signal and combining by logical disjunction |
09/30/1992 | WO1992017966A1 Clamping receiver and transmission protocol |
09/30/1992 | EP0506237A2 A communication apparatus with fault tolerance |
09/30/1992 | EP0505657A1 Preamble recognition and synchronization detection in partial-response systems |
09/30/1992 | CA2104694A1 Clamping receiver and transmission protocol |
09/29/1992 | US5151924 Automatic equalization method and apparatus |
09/29/1992 | US5151698 Method for the coding of a digital signal, coder and decoder to implement this method, regeneration method and corresponding regenerator utilizing pulse position modulation |
09/29/1992 | US5151612 Circuit for eliminating digital noise or short pulses utilizing set/reset shift register |
09/28/1992 | WO1992017938A2 Differential driver/receiver circuit |
09/28/1992 | CA2108040A1 Differential driver/receiver circuit |
09/28/1992 | CA2059922A1 Preamble recognition and synchronization detection in partial-response systems |
09/27/1992 | WO1992017965A1 ALL MONOLITHIC TRANSCEIVER OPERATIVE FROM A LOW VOLTAGE Vcc DC SUPPLY |
09/27/1992 | CA2076859A1 All monolithic transceiver operative from a low voltage vcc dc supply |
09/24/1992 | DE4108573A1 Conductor regenerator for digital transmission system on metal cable - has cable connecting blocks permitting electro-optical and opto-electrical signal conversion with transition between corresp. transmission systems |
09/23/1992 | EP0505283A2 Device for the galvanic insulation of DC electrical signals or signals containing a DC component |
09/23/1992 | EP0505281A1 Synchronisation of terminal stations in a multirate half duplex tree network |
09/23/1992 | EP0504890A2 Demodulator for demodulating a pi/4-shift DQPSK signal |
09/23/1992 | EP0504546A2 Method of establishing initial phase synchronisation and adaption of the receive filter of a digital receiver in a baseband transmission system |
09/23/1992 | EP0504306A1 Waveshaping transversal filter and method utilizing the same for data transmission over coaxial cable |
09/22/1992 | US5150380 Receiver capable of removing both intersymbol interference and frequency offset |
09/22/1992 | US5150379 Signal processing system for adaptive equalization |
09/22/1992 | US5150359 Multiplexed synchronous/asynchronous data bus |
09/17/1992 | WO1992016062A1 Data bus interface apparatus |
09/17/1992 | DE4108709A1 Empfangskomparator Receiving comparator |
09/17/1992 | DE4108610A1 Senderendstufe Transmitter output stage |
09/16/1992 | EP0504062A1 Integrated circuit with servo-controlled impedances and application to transceivers, particularly for communication between units of an information system |
09/16/1992 | EP0504060A1 Method and circuit for transmission detection in bidirectional differential links |
09/15/1992 | US5148449 Centering multi-level data |
09/15/1992 | US5148144 Data communication network providing power and message information |
09/15/1992 | CA1307598C Method and apparatus for stabilized data transmission |
09/09/1992 | EP0502739A2 NRZ clock and data recovery system employing phase lock loop |
09/09/1992 | EP0502251A2 Method for intermediate amplification of digital signals and repeater for digital signals |
09/09/1992 | EP0189456B1 Multipurpose digital ic for communication and control network |
09/08/1992 | US5146476 High gain amplifier for reception of low level pulse code modulation nonreturn-to-zero signals |
09/08/1992 | US5146475 Maximum-liklihood sequence estimation apparatus |
09/08/1992 | US5146473 Subscriber unit for wireless digital subscriber communication system |
09/08/1992 | CA2061909A1 Nrz clock and data recovery system employing phase lock loop |
09/03/1992 | DE4205352A1 LF noise reduction filter for digital pulse train - extracts low frequency noise signal using low-pass filter and subtracts it from original input to regenerate pulse train |
09/02/1992 | EP0501907A2 Methods and apparatus particularly useful for blind deconvolution |
09/02/1992 | EP0501449A2 Automatic equalizer |
09/02/1992 | EP0500804A1 Self-synchronizing infra-red communication system |
09/01/1992 | US5144644 Soft trellis decoding |
09/01/1992 | US5144469 Method for the transmission of data between two stations by means of optical waveguides |
09/01/1992 | US5144305 Transmission arrangement comprising a block code encoded main channel and an auxiliary channel |
09/01/1992 | US5144304 Data and forward error control coding techniques for digital signals |
08/26/1992 | EP0500263A2 Method for synchronising a receiver's data clock |
08/26/1992 | EP0500041A2 Decision-feedback equalizer capable of producing an equalized signal at a high speed |
08/25/1992 | US5142554 Data separator with noise-tolerant adaptive threshold |
08/25/1992 | US5142552 Method and apparatus for analog D.C. offset cancellation |