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)
08/1983
08/23/1983CA1152577A1 Arrangement having a non-recursive filter
08/17/1983EP0086091A2 Apparatus and method for signal processing
08/16/1983US4399530 Method and apparatus for coding and decoding binary data
08/16/1983US4399474 Automatic threshold tracking system
08/16/1983US4399413 High speed sampling head
08/09/1983US4398106 On-chip Delta-I noise clamping circuit
08/04/1983WO1983002701A1 Resonator for a regenerator
08/03/1983EP0084625A2 Fibre-optic transmission system
08/03/1983EP0084592A1 Process and device for measuring the time difference between the sampling-times of two sampled signals, in particular of the input and output signals of a sampling frequency converter
08/02/1983US4397042 Optical modulation/demodulation system
08/02/1983US4397029 Least squares adaptive lattice equalizer
08/02/1983CA1151260A1 Digital data transmission system
08/02/1983CA1151246A1 Method and device for training an adaptive equalizer by means of an unknown data signal in a transmission system using double sideband-quadrature carrier modulation
07/1983
07/27/1983EP0084429A1 Automatic receiver gain control in centralized monitor system
07/27/1983EP0084370A1 Circuit arrangement for keying a single current line
07/27/1983EP0084358A2 Method and circuit arrangement for identifying the read-signals from a magnetic storage medium
07/26/1983CA1150794A1 High impedance transceiver for tapped bus transmission systems
07/26/1983CA1150793A1 Bus transmission system
07/26/1983CA1150791A1 Circuit for determining the phase jitter of digital signals
07/19/1983US4394768 Adaptive system in a digital data receiver providing compensation for amplitude and phase distortions introduced by a data transmission channel
07/19/1983US4394641 Method and device for coding binary data and a device decoding coded data
07/19/1983CA1150399A1 Method and apparatus for magnetic recording and reproduction of digital signal
07/19/1983CA1150398A1 Digital frequency modulation and modified frequency modulation read recovery with data separation
07/12/1983USRE31311 DC Free encoding for data transmission system
07/12/1983US4393516 Data transmission system and method
07/12/1983US4393501 Line protocol for communication system
07/12/1983US4393499 Adaptive signal quality measurement circuit for PSK and FSK demodulators
07/12/1983US4393458 Data recovery method and apparatus using variable window
07/12/1983US4393279 Digital data transmission system having frequency or phase modulated data carrying signals to provide supervisory channel
07/12/1983CA1149902A1 D.c. telegraph transmitter
07/07/1983WO1983002373A1 Automatic equalizer and method of initialization thereof
06/1983
06/28/1983US4390980 Demultiplexing plural data streams
06/28/1983US4390963 Interface adapter architecture
06/28/1983US4390947 Serial line communication system
06/28/1983CA1149032A1 Adaptive filter including a delay circuit
06/28/1983CA1149031A1 Adaptive filter including a delay circuit
06/22/1983EP0082080A1 Method and apparatus for the transmission of signals, and use in the detection and/or measuring of the concentration of combustible gas in an atmosphere
06/22/1983EP0081875A2 Electrical data pulse processing
06/22/1983EP0081835A1 Regenerator for a digital cummunication system
06/22/1983EP0081750A1 Self-clocking serial decoder
06/22/1983EP0081499A1 Data operated squelch.
06/21/1983US4389726 Adaptive predicting circuit using a lattice filter and a corresponding differential PCM coding or decoding apparatus
06/21/1983US4389682 Magnetic recording systems
06/21/1983US4389636 Encoding/decoding syncronization technique
06/21/1983US4389623 Automatic equalizer ulitizing a preiodically contained reference signal
06/14/1983US4388732 Fiber optic data link
06/14/1983US4388727 Receivers suitable for use in remotely-operable switching devices and data transmission systems
06/14/1983US4388726 System for the ultra-high frequency transmission of numerical data
06/14/1983US4388725 Bus transmission system
06/14/1983US4388724 Adaptive equalizer device
06/14/1983CA1148224A1 Transversal equalisers
06/08/1983EP0080782A1 Signal transmission system
06/08/1983EP0080509A1 Signal booster for digital data transmision through transmission lines
06/07/1983US4387460 Supplementary information transmitting arrangement for a digital data transmission system
06/07/1983US4387366 Code converter for polarity-insensitive transmission systems
06/07/1983US4387364 Method and apparatus for reducing DC components in a digital information signal
06/07/1983CA1147865A1 Message interchange system among microprocessors connected by a synchronous transmitting means
06/07/1983CA1147858A1 System for recording digital information in a pulse-length modulation format
06/07/1983CA1147815A1 Ir remote control system
05/1983
05/31/1983US4386430 Automatic equalizer for synthesizing recursive filters
05/31/1983CA1147470A1 Binary conversion device, particularly for image information transmitters and receivers with redundancy reduction
05/31/1983CA1147403A1 Laser digital transmitter
05/26/1983WO1983001876A1 Echo canceller
05/26/1983WO1983001873A1 Telemetry system with signal booster for digital data transmission through a transmission line
05/25/1983EP0079527A2 Data transmission installation for full duplex transmission
05/24/1983US4385395 Bit clock reproducing circuit
05/24/1983US4385328 Data extracting circuit
05/24/1983CA1147072A1 Electrical communications system
05/24/1983CA1147035A1 Four-wire line arrangement for use in a digital telecommunications system
05/18/1983EP0079204A1 Equalizer circuit for use in communication unit
05/18/1983EP0079107A1 Deriving a clock signal from a received digital signal
05/17/1983CA1146672A1 Zero disparity coding/decoding system
05/17/1983CA1146669A1 Simulator for bit and byte synchronized data network
05/17/1983CA1146667A1 Ghost cancelling system
05/11/1983EP0078577A1 Code generator
05/10/1983US4383324 Digital data transmission systems
05/10/1983US4383322 Combined use of PN sequence for data scrambling and frame synchronization in digital communication systems
05/10/1983US4383316 Apparatus for and method of collating partitioned time disordered synchronous data streams
05/03/1983US4382298 Binary digit or bit restoration circuit
04/1983
04/28/1983WO1983001544A1 High speed data bus structure and system
04/26/1983US4381290 Method and catalyst for making chlorine dioxide
04/26/1983CA1145418A1 Data signal detection circuit
04/20/1983EP0077216A1 Radio system
04/19/1983US4380761 Digital phase decoder with collision detection
04/19/1983CA1145051A1 Spectrum converter for analog signals
04/14/1983WO1983001360A1 Data communication system
04/13/1983EP0076505A1 Digital transmitting system
04/12/1983US4380082 Digital signal receiver with FM interference elimination capability
04/12/1983US4380080 Tri-level differential line receiver
04/12/1983CA1144656A1 Transmission of additional signals via line encoded digital transmission systems by employing random signalling opportunities
04/12/1983CA1144618A1 Adaptive decision level circuit for regenerating digital signals
04/12/1983CA1144602A1 System for transmitting optical binary data signals through an optical fiber with pilot pulses inserted between two wide spaced successions of data signals
04/06/1983EP0075852A2 Pulse code modulation system
04/05/1983US4379206 Monitoring circuit for a descrambling device
03/1983
03/30/1983EP0075480A2 Serial data communication system
03/30/1983EP0075295A2 Optical transmission system for high-frequency digital signals
03/30/1983EP0075244A1 Regenerator for high-frequency digital signals with an additional low-frequency signal patch
03/29/1983CA1143832A1 Group coded recording data recovery system
03/29/1983CA1143804A1 Wide range data cable equalizer
03/29/1983CA1143795A1 Fiber optics communication system
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