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)
08/1989
08/22/1989US4860311 Method and apparatus for automatically converting input pulse train signals to output signals of desired polarity
08/22/1989US4860310 Duobinary encoded signal decoder
08/22/1989US4860309 Trinary bus communication system
08/22/1989US4860292 Communication protocol
08/22/1989US4860286 Encoding method in transmission of plurality of oversampled data channels, and apparatus for carrying out the method
08/22/1989US4860235 Arithmetic unit with alternate mark inversion (AMI) coding
08/22/1989US4860010 Automatic drift control circuit
08/22/1989US4859877 Bidirectional digital signal transmission system
08/22/1989US4859815 Serial link transparent mode disparity control
08/16/1989EP0328448A1 Process and device for the synchronisation of terminals communicating via a chain without temporary transparency
08/16/1989EP0328266A2 Binary data regenerator with adaptive threshold level
08/16/1989EP0327533A1 Radio communication receiver with apparatus for altering bit rate of the receiver.
08/15/1989US4857727 Optically powered remote sensors with timing discrimination
08/10/1989WO1989007376A1 Adaptive television ghost cancellation system
08/09/1989EP0326614A1 Synchronous signal decoder
08/08/1989US4856026 Data transmission system comprising smearing filters
08/08/1989US4856023 System for maintaining low bit error rate in a starcoupled network of direct coupled stations
08/08/1989US4855742 Method of transmitting n-bit information words, information transmission system for carrying out the method, and encoding device and decoding device for use in the information-transmission system
08/08/1989US4855732 System for the transmission of signals between a reception assembly lowered into a well and a central control and recording laboratory
08/08/1989CA1258296A1 Decision feedback equalizer with a pattern detector
08/01/1989US4853943 Manchester code clock and data recovery system
08/01/1989US4853931 Violating All Zero Octet (VAZO) detector for a zero byte time slot interchange (ZBTSI) encoder
08/01/1989CA1258130A1 Cmi signal transmission system
08/01/1989CA1258101A1 Arrangement for generating a clock signal
07/1989
07/27/1989WO1989006885A1 Data bit detector for fiber optic system
07/27/1989WO1989006878A1 Apparatus and method for adaptively optimizing equalization delay of data communication equipment
07/27/1989DE3900633A1 Facsimile control system
07/26/1989EP0325391A2 Pseudo-ternary code transmitter
07/26/1989EP0325281A2 Optical transmitter, optical receiver and optical transmission apparatus and control method of optical receiver
07/26/1989EP0205563B1 System for selectively coupling a plurality of data stations into a single communications path
07/25/1989US4852160 Channel unit interface circuit
07/25/1989US4852128 Optical communications transmitter and receiver
07/25/1989US4852122 Modem suited for wireless communication channel use
07/25/1989US4852103 Code error detecting circuit
07/25/1989US4852041 Interface converter
07/25/1989US4851837 Method and apparatus for processing digital signals prior to recording
07/25/1989US4851710 Metastable prevent circuit
07/25/1989CA1257933A1 Synchronous encoder
07/25/1989CA1257931A1 Rhythm recovery device
07/25/1989CA1257914A1 Adaptive automatic equalizer
07/24/1989EP0308450A4 Jitter control in digital communications links.
07/19/1989EP0324532A2 Threshold tracking system
07/18/1989US4849996 Phase perturbation compensation system
07/18/1989US4849967 Multiplex control system
07/13/1989WO1989006458A1 Electro-optical data handling system with noise immunity
07/12/1989EP0323870A2 Signal equalising arrangement and method, using a feedback equaliser
07/12/1989EP0323586A2 Transmission system
07/12/1989EP0323525A1 Digital differential signal transmission apparatus having intrinsically safe barrier
07/12/1989EP0323488A1 Device for potential-free transmission of digital signals in serial networks with bitwise arbitration
07/11/1989US4847873 Interface circuit
07/11/1989US4847871 Viterbi detector for digital signal
07/11/1989US4847865 Automatic threshold adjustment circuit for digital data communication
07/11/1989US4847831 Bidirectional repeater for manchester encoded data signals
07/11/1989US4847797 For reception of electrical signals
07/11/1989US4847756 Data transmission system for a computer controlled copying machine having master and slave CPU's
07/11/1989US4847703 Data transmission and detection system
07/11/1989US4846310 Signal transmission apparatus for elevator
07/11/1989CA1257120A1 Cascaded fiber optic lattice filter
07/06/1989DE3743836A1 Method for error reduction in digital signal transmission
07/06/1989DE3742897A1 Circuit for gating out bits
07/05/1989EP0322897A2 Simultaneous data and electric power transmitting/receiving system
07/05/1989EP0322542A1 Method for equalizing dispersive, linear or nearly linear channels for transmitting digital signals, and apparatus for carrying out said method
06/1989
06/29/1989WO1989006073A1 Process and arrangement for equalizing dispersive, linear or approximately linear channels for transmitting digital signals
06/29/1989DE3833031A1 Descrambler, particularly for digital satellite sound broadcast signals
06/28/1989EP0322038A1 Digital pre-modulation filter
06/28/1989EP0322025A2 Transmitter circuit
06/27/1989US4843382 Method for monitoring a digital transmission line
06/27/1989CA1256526A1 Adaptive hybrid circuits for crosstalk cancellation
06/21/1989EP0320843A1 Method of and device for transmitting a digital service channel by way of the parity channel of a parity check coded digital data stream
06/20/1989US4841550 Universal null DTE
06/20/1989US4841548 Method and apparatus for extracting an auxiliary data clock from the clock and/or the clock-phase of a synchronous or plesiochronic digital signal
06/20/1989US4841301 Device operable like an automatic level control circuit for decoding a multivalued signal
06/20/1989CA1255940A1 Fiber optic workstation datalink interface
06/13/1989US4839912 Switching circuit arrangement for monitoring a binary signal
06/13/1989US4839905 Multirate automatic equalizer
06/13/1989CA1255803A1 Device operable like an automatic level control circuit for decoding a multivalued signal
06/07/1989EP0319216A2 Coding apparatus and magnetic recording system the same
06/07/1989EP0319085A1 Digital transmission with galvanic separation in video circuits
06/07/1989EP0318581A1 High speed scrambling at lower clock speeds
06/06/1989US4837821 Signal transmission system having encoder/decoder without frame synchronization signal
06/06/1989US4837782 CMI decoder
06/06/1989US4837780 Transmit line buildout circuits
06/06/1989US4837779 Communicator and communication method and system
06/06/1989US4837778 Circuit arrangement for time-regeneration of broadband digital signals
06/06/1989US4837642 Threshold tracking system
06/06/1989CA1255368A1 Multi-value signal monitor circuit
06/01/1989WO1989005079A1 Dynamic speed shifter for fiber optic data transmission
06/01/1989WO1989005078A1 Optical communications network
06/01/1989WO1989005077A1 Optical communications network
06/01/1989WO1989005072A1 Apparatus and method for identification of message initiation in a process control network
06/01/1989WO1989005070A1 Optical communications network
06/01/1989WO1989005069A1 Optical communications network
05/1989
05/31/1989EP0318335A1 Fault location in optical communications networks
05/31/1989EP0318333A1 Stations for a digital communications network
05/31/1989EP0318332A1 Synchronisation of digital communications network
05/31/1989EP0318331A1 Scrambling in a digital communications network
05/31/1989EP0318227A2 Frame synchronising method and system
05/31/1989EP0318105A1 Analog circuit for baseband modem
05/31/1989EP0187778B1 Adaptive hybrid circuit
05/30/1989CA1255004A1 Digital signal transmission system
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