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)
02/1985
02/12/1985US4499454 Method and apparatus for encoding a digital signal with a low DC component
02/06/1985EP0037827B1 Receiver for complex data signals
02/05/1985US4498198 Binary signal decoding apparatus and method
02/05/1985US4498187 Electronic postage meter having plural computing systems
02/05/1985US4498176 Method and apparatus for the error-free synchronization of asynchronous pulses
02/05/1985US4498082 Method and apparatus for locating a discontinuity in a data transmission ring
01/1985
01/29/1985US4497068 Encoding system for optic data link
01/29/1985US4497060 Self-clocking binary receiver
01/29/1985US4497055 Data error concealing method and apparatus
01/29/1985US4496994 Noise immune data regenerating circuit for video signal reproduction
01/22/1985US4495626 Method and network for improving transmission of data signals between integrated circuit chips
01/17/1985WO1985000259A1 Probabilistic scrambler and method of probabilistic scrambling
01/16/1985EP0131055A1 Automatic gain control circuit.
01/16/1985EP0130998A1 Ternary encoding and decoding of digital data
01/15/1985US4494241 For wave shaping signals
01/15/1985CA1181150A1 Arrangement for correcting pulse distortion in homochronous data transmission
01/09/1985EP0130899A2 Programmable series/parallel converter circuit for a digital signal, and its use in a receiver for digital video signals
01/08/1985US4493114 Method of communicating in the ultraviolet spectrum
01/08/1985US4493092 Interface circuit for digital signal transmission system
01/08/1985US4493082 Soft decision convolutional code transmission systems
01/03/1985WO1985000067A1 Method of modulating digital data
01/02/1985EP0129994A2 Interface circuit
01/02/1985EP0129542A1 Cmos circuit using transmission line interconnections
01/02/1985CA1180450A Method and apparatus for encoding an nrzi digital signal with low dc component
01/02/1985CA1180408A Method and apparatus for signal-eye tracking in digital transmission systems
01/01/1985US4491808 Equalizer circuit for use in communication unit
12/1984
12/27/1984EP0129305A2 Optical fibre receiver
12/27/1984EP0129175A2 Equalizer modifying a phase of a gain control signal to carry out equalization
12/27/1984CA1180077A Method and apparatus for synchronizing a station connected in a data line
12/27/1984CA1180070A Adaptive filter
12/25/1984US4490819 Rate converter
12/25/1984US4490712 Information transcoding process and a transmission system using such a process
12/20/1984WO1984005002A1 Multi-function data signal processing method and apparatus
12/19/1984EP0128473A2 Receiver for optical communication
12/19/1984EP0128396A1 Integrated bus-oriented communication system
12/18/1984US4489418 Differential encoding technique
12/18/1984US4489417 Multi-level communication circuitry for communicating digital signals between integrated circuits
12/11/1984US4488218 Dynamic priority queue occupancy scheme for access to a demand-shared bus
12/11/1984US4488143 Fixed rate run length limited (RLL) code string generation using length oriented arithmetic code data string expansion and data string recovery using arithmetic code compression of RLL code strings
12/11/1984US4488126 Equalizer arrangement for mixed-gauge cables
12/11/1984CA1179429A1 Apparatus and method for encoding information
12/06/1984WO1984004863A1 Manchester decoder
12/05/1984EP0127136A2 Method of transmitting digitally coded analog signals
12/04/1984US4486753 Bus line drive circuit
12/04/1984US4486740 DC Cancellation in ternary-coded data systems
12/04/1984US4486739 Byte oriented DC balanced (0,4) 8B/10B partitioned block transmission code
12/04/1984CA1179052A2 Digital formatting system
11/1984
11/28/1984EP0126609A2 Digital encoding and decoding apparatus
11/28/1984EP0126398A1 Arrangement for transmitting digital AMI-coded signals
11/28/1984EP0126384A2 Method and arrangement for decoding an nB/(n+1)B-coded data stream
11/28/1984EP0126301A2 Adaptive equalizer for digital signals
11/27/1984US4485478 Digital burst signal transmission system
11/27/1984CA1178721A1 Binary signal receiver for time compression multiplexing
11/27/1984CA1178686A1 Line protocol for communication system
11/27/1984CA1178665A1 Method and apparatus for converting binary information into a high density single-side band signal
11/22/1984EP0116603A4 Digital signal transmission and receiving apparatus.
11/21/1984EP0125984A1 Method of reshaping a distorted digital signal and arrangement for carrying out said method
11/21/1984EP0125805A2 Bit error detection circuit for PSK-modulated carrier wave
11/20/1984US4484338 Data transmission systems
11/20/1984US4484336 Digital transmission systems
11/14/1984EP0124959A2 Group coding method for serial data transmission
11/13/1984US4483009 Tranversal equalizer
11/13/1984CA1177968A1 Digital signal detecting circuit having weighting resistors
11/13/1984CA1177931A1 Two-way optical data communication system
11/13/1984CA1177909A1 Device for multiplying by 2.sup.n the frequency of a pulse signal
11/08/1984WO1984004437A1 Digital communications system
11/08/1984WO1984004435A1 Variable bandwidth switching system
11/07/1984EP0124203A2 Apparatus for improving the data transmission rate in a telemetry system
11/06/1984US4481678 Signal receiving circuit for optical communication
11/06/1984US4481676 Transmitter-receiver system for variable-rate digital data transmission via optical-fiber links
11/06/1984US4481675 Pulse detecting circuit of receiver for use in digital radio communication system
10/1984
10/31/1984EP0123563A2 Converting digital signals
10/31/1984EP0123315A2 Transversal type equalizing method
10/30/1984US4480200 Zero-crossing point detection circuit
10/25/1984WO1984004220A1 Enhanced distance data transmission system
10/24/1984EP0122870A2 Enhanced distance data transmission system
10/24/1984EP0122655A1 Digital transmission system
10/24/1984EP0122438A2 Receiving circuit for data signals transmitted according to the code-diphase method
10/23/1984US4479266 Multiple-threshold optical receiver for a variable-rate digital data transmission system
10/23/1984US4479067 Output buffer circuit
10/17/1984EP0122083A2 Method and apparatus for encoding a binary data stream into a binary code stream
10/17/1984EP0122027A1 Variable-length encoding-decoding system
10/17/1984EP0121841A2 Method or improving time resolution in digital systems
10/17/1984EP0121750A1 Clock recovery circuit for a synchronous data transmission utilizing a combination of the biphase L code, and the modified biphase code
10/16/1984US4477914 Adaptive equalizer
10/16/1984CA1176320A1 Signal wave control circuit
10/10/1984EP0121389A2 Apparatus and method for adjusting the receivers of data transmission channels
10/09/1984US4476557 Duplex signaling circuit
10/09/1984CA1175919A1 Device for discriminating between two values of a signal with dc offset compensation
10/03/1984EP0120640A2 Data distribution network
10/03/1984EP0120474A2 DC voltage control circuits
10/03/1984EP0120172A1 Bus interface device for a data processing system
10/02/1984US4475212 Frequency-independent, self-clocking encoding technique and apparatus for digital communications
10/02/1984US4475209 Regenerator for an intrabundle power-line communication system
10/02/1984CA1175526A1 Digital information transmission system
10/02/1984CA1175523A1 Voiceband data set
10/02/1984CA1175522A1 Adaptive system in a digital data receiver providing compensation for amplitude and phase distortions introduced by a data transmission channel
09/1984
09/26/1984EP0119766A1 Data capture window extension circuit
09/26/1984EP0119600A2 Regeneration of digital signals with a high bit rate
09/25/1984US4473820 Signal decoder for converting a co-directional 64 kbit/s interface signal into a binary information signal, a 64 KHZ clock and an 8 KHZ clock
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