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)
01/1984
01/10/1984US4425647 IR Remote control system
01/10/1984US4425562 Device for coding signals which are distributed between a number of channels
01/10/1984US4425548 Digital signal processing circuit
01/10/1984CA1160313A1 Storage camparator, for regenerating digital electric signals and digital transmission system using such a comparator
01/10/1984CA1160308A1 Data communication system
01/10/1984CA1160307A1 Digital phase decoder with collision detection
01/05/1984WO1984000090A1 Training system for data receiver
01/03/1984US4424536 Data exchange circuit for a magnetic memory apparatus
01/03/1984US4424497 System for phase locking clock signals to a frequency encoded data stream
01/03/1984US4424413 Circuit for converting a binary input signal into a telegraph signal
12/1983
12/28/1983EP0096966A2 Automatic correction circuit for received digitally encoded signals
12/28/1983EP0096943A2 Terminal arrangement for a duplex transmission system
12/28/1983EP0096872A2 Transmitter stager for high-speed digital signals
12/27/1983US4423506 Wire data transmission system
12/27/1983US4423391 Equalizer circuit for communication signals
12/27/1983US4423319 Communication link
12/27/1983CA1159563A1 Electronic postage meter having plural computing systems
12/21/1983EP0096048A1 Echo canceller.
12/20/1983US4422175 Constrained adaptive equalizer
12/20/1983CA1159143A1 Write control apparatus
12/20/1983CA1159129A1 Asynchronous transmission system for binary-coded information
12/13/1983US4420842 Fiber optic digital data transmitting system
12/06/1983US4419756 Voiceband data set
12/06/1983CA1158371A1 Multiplexer system providing improved bit count integrity
11/1983
11/30/1983EP0095389A2 Data transmission system
11/29/1983US4418406 Signal wave control circuit
11/29/1983US4418322 Automatic digital circuit for synchronizing with a variable baud rate generator
11/29/1983CA1157917A1 Fast learn digital adaptive equalizer
11/24/1983WO1983004153A1 Method for tansmitting signal pulses over a channel
11/23/1983EP0094431A1 Telemetry system with signal booster for digital data transmission through a transmission line
11/22/1983US4417349 SCA Data transmission system with a raised cosine filter
11/22/1983US4417320 Interface for data communication systems using serial biphase data transmissions
11/22/1983US4417213 Data regenerative system for NRZ mode signals
11/22/1983US4417099 Electro-optical isolator circuit for line powered modem
11/22/1983CA1157590A1 Microprogrammable tdma terminal controller
11/22/1983CA1157532A1 Data recovery method using variable window
11/16/1983EP0094293A2 An arrangement for encoding and decoding information signals
11/16/1983EP0094254A2 Integrated scrambler-encoder using PN sequence generator
11/16/1983EP0094178A2 Interface for serial data communications link
11/16/1983EP0093872A1 Method for the transmission of measured values in a control system
11/15/1983CA1157120A1 Phase-encoded data signal demodulator
11/08/1983US4414659 Method and apparatus for encoding digital data so as to reduce the D.C. and low frequency content of the signal
11/08/1983US4414585 Method of transmitting an audio signal via a transmission channel
11/02/1983EP0092734A2 Regenerator for an intrabundle power-line communication system
11/01/1983US4413347 Ternary to binary pulse regenerator for a regenerative repeater
11/01/1983US4413300 Line driver circuit having a protective circuit against excess currents
11/01/1983US4413251 Method and apparatus for generating a noiseless sliding block code for a (1,7) channel with rate 2/3
10/1983
10/26/1983EP0092071A2 Operating supervision for digital signal transmission links
10/25/1983US4412336 Storage comparator, for regenerating digital electric signals and digital transmission system using such a comparator
10/25/1983US4412335 Digital signal distribution system
10/25/1983CA1155960A1 Process and coder for the serial transmission of binary digits
10/25/1983CA1155938A1 Transmission arrangement having an adjustable network
10/19/1983EP0091657A1 Data transmission apparatus between two asynchronously controlled data processing systems with a buffer memory
10/19/1983EP0091562A2 Data transmission system
10/19/1983EP0091488A1 Bus system.
10/18/1983US4410980 Time division multiplexing system
10/18/1983US4410955 Method and apparatus for digital shaping of a digital data stream
10/18/1983US4410878 Digital signal transmission
10/18/1983US4410877 Method of coding data bits on a recording medium, arrangement for putting the method into effect and recording medium having an information structure
10/13/1983WO1983003500A1 Insulated device for the transmission of binary information through an electric line
10/12/1983EP0091215A2 Demodulator for an asynchronous binary signal
10/12/1983EP0090825A1 Data communication system
10/11/1983US4409684 Circuit for synchronizing a transmitting-receiving station to a data network of a digital communication system
10/11/1983CA1155224A1 Method of and device for effecting objective quality measures on speech transmission apparatuses
10/05/1983EP0090728A1 Process for transmitting a HDBN coded signal with an auxiliary binary signal, coder and decoder according to the process and remote repeater supervision of a digital link by such an auxiliary signal
10/05/1983EP0030724B1 Method and device for carrying out objective measurements on digital speech transmission systems
10/04/1983US4408332 Adaptive system in a digital data receiver providing compensation for amplitude and phase distortions introduced by a data transmission channels
10/04/1983US4408325 Transmitting additional signals using violations of a redundant code used for transmitting digital signals
10/04/1983US4408307 Optical transmission of digital seismic data
10/04/1983US4408189 Method and apparatus for code conversion of binary to multilevel signals
10/04/1983CA1154873A1 Method and apparatus for reducing dc components in a digital information signal
10/04/1983CA1154841A1 Digital signal transmission method and apparatus
09/1983
09/28/1983EP0089515A1 Power-line baseband communication system
09/28/1983EP0089467A1 Method and system for pulse signal transmission
09/27/1983US4406988 Circuit for processing a digital signal
09/27/1983US4406924 Radio-controlled devices for use in power distribution circuits
09/27/1983CA1154539A1 Code converter for polarity-insensitive transmission systems
09/27/1983CA1154514A1 Method of synchronizing a quadphase receiver and a clock synchronization device for carrying out the method
09/21/1983EP0089276A1 Clock frequency recovering device for digital transmission
09/20/1983US4406009 Method and apparatus for converting binary information into a single-sideband 3-level correlative signal
09/20/1983CA1154165A1 Manchester decoder
09/15/1983WO1983003175A1 Method and apparatus for synchronising the phase of a transit exchange in a digital telecommunication network
09/14/1983EP0088432A1 Multiplexer apparatus having nBmB coder
09/13/1983US4404681 Device for setting a signal processing circuit
09/13/1983CA1153820A1 Soft quantizer for fm radio binary digital signaling
09/07/1983EP0087664A1 Phase decoder for data communication systems
09/06/1983US4403333 Method for recognizing digital information in transmission in mobile radio communications systems
09/06/1983US4403330 Regenerative repeater for multi-stage digital signals
09/01/1983WO1983003036A1 Telecommunication system for transmitting data information by means of a digital exchange
08/1983
08/31/1983EP0087265A1 Line transmission systems
08/30/1983US4402084 Regenerator having a code rule violation checking device
08/30/1983US4402079 Delay correction circuit
08/30/1983CA1153118A1 Method and apparatus for code conversion of binary to multilevel signals
08/30/1983CA1153108A1 Digital read recovery with variable frequency compensation using read only memories
08/24/1983EP0086441A1 Quadriphase coding arrangements for synchronous data transmission
08/23/1983CA1152651A1 Method and apparatus for encoding a digital signal to have minimal dc component
08/23/1983CA1152649A1 Data encoding method and system employing two-thirds code rate with full word look-ahead
08/23/1983CA1152608A1 Direct current telegraphy systems
08/23/1983CA1152607A1 Arrangement for generating a clock signal
08/23/1983CA1152602A1 Transmission apparatus
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