Patents
Patents for H03M 5 - Conversion of the form of the representation of individual digits (4,193)
09/1984
09/12/1984EP0118121A2 Improvements in or relating to an apparatus for encoding and decoding sequential information in data handling systems
09/11/1984US4471399 Power-line baseband communication system
09/11/1984CA1174297A1 Bi-phase modulator/demodulator
08/1984
08/29/1984EP0116972A2 Switchable transcoder
08/14/1984US4466089 Information signal reproducing apparatus
08/14/1984US4466000 Data communication system
08/14/1984CA1172767A1 Write precompensation and write encoding for fm and mfm recording
08/08/1984EP0115327A2 CMI-decoder
08/07/1984US4464765 Burst signal transmission system
08/07/1984US4464714 System for transmitting digital information, coding arrangement for use in that system, decoding arrangement for use in that system and record carrier for use in that system
08/07/1984CA1172331A1 Self-clocking data transmission system
08/01/1984EP0114322A2 Method and arrangement for converting a two-level binary signal into a pulse-coded signal presenting data pulses and refreshing pulses
07/1984
07/31/1984US4463344 Method and apparatus for generating a noiseless sliding block code for a (2,7) channel with rate 1/2
07/24/1984US4462051 Demodulator for an asynchronous binary signal
07/19/1984WO1984002817A1 Method of transferring digital signal
06/1984
06/27/1984EP0112043A2 Self-clocking binary receiver
06/27/1984EP0111968A1 Transmission system for the transmission of binary data symbols
06/26/1984US4456905 Method and apparatus for encoding binary data
06/26/1984US4456884 Phase-lock loop and Miller decoder employing the same
06/20/1984EP0111309A2 CMI decoder
06/13/1984EP0110179A2 Multi-level transfer circuitry for transmitting digital signals between integrated circuits
06/12/1984CA1169152A1 Circuit for decoding a diphase signal
06/05/1984US4453157 Bi-phase space code data signal reproducing circuit
05/1984
05/29/1984CA1168391A1 Demultiplexing plural data streams
05/22/1984US4450572 Interface for serial data communications link
05/22/1984CA1167968A1 Method and apparatus for encoding and decoding digital information
05/15/1984US4449119 Self-clocking serial decoder
05/15/1984US4449102 Adaptive threshold circuit
05/15/1984US4449065 Tri-level input buffer
04/1984
04/24/1984US4445193 Bisynchronous host/terminal communication system with non-clock-generating modem & PLL generated clock signal
04/04/1984EP0104443A1 Method and circuit arrangement for transcoding code words
03/1984
03/28/1984EP0103903A1 Method and apparatus for transferring digital data
03/27/1984US4439689 Circuit for the control of the cyclic ratio of a periodic pulse signal and device multiplying by 2n of a pulse signal frequency incorporating said control circuit
03/06/1984CA1163346A1 Arrangement for checking the synchronisation of a receiver
03/06/1984CA1163345A1 Transmission system for the transmission of binary data symbols
02/1984
02/01/1984EP0099749A2 Method for converting digital signals and apparatus for carrying out the method
01/1984
01/31/1984CA1161503A1 Receiver apparatus for converting optically encoded binary data to electrical signals
01/24/1984US4428061 Method and apparatus for receiving carrier-borne digital signals intended to operate remotely-operable switching devices
01/24/1984US4428042 Interface device for coupling a system of time-division multiplexed channels to a data concentrator
01/18/1984EP0098588A2 Adaptive equalizer for the equalization of multilevel signals
01/17/1984CA1160751A1 Method of modulation and demodulation of data and apparatus for the same
01/11/1984EP0097981A1 Transmission system for the transmission of binary data symbols
01/11/1984EP0097947A2 Arrangement for generating pseudo-random sequences in the AMI code
01/11/1984EP0097763A2 A method and apparatus for producing a DC balanced (0,4) run length limited rate 8B/10B code from an input data stream
01/10/1984US4425562 Device for coding signals which are distributed between a number of channels
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
12/1983
12/13/1983US4420842 Fiber optic digital data transmitting system
12/06/1983US4419757 Transformerless bipolar converter
11/1983
11/30/1983EP0095389A2 Data transmission system
11/22/1983CA1157533A1 Decoder circuit
11/22/1983CA1157532A1 Data recovery method using variable window
11/16/1983EP0094293A2 An arrangement for encoding and decoding information signals
11/16/1983EP0094178A2 Interface for serial data communications link
11/15/1983US4415766 Recognizer/converter for arabic and other language codes
11/08/1983US4414659 Method and apparatus for encoding digital data so as to reduce the D.C. and low frequency content of the signal
10/1983
10/25/1983CA1155960A1 Process and coder for the serial transmission of binary digits
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
10/12/1983EP0091215A2 Demodulator for an asynchronous binary signal
10/11/1983US4409684 Circuit for synchronizing a transmitting-receiving station to a data network of a digital communication system
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
09/27/1983US4406924 Radio-controlled devices for use in power distribution circuits
09/27/1983CA1154514A1 Method of synchronizing a quadphase receiver and a clock synchronization device for carrying out the method
08/1983
08/30/1983US4401903 MOS Decoder circuit
08/30/1983CA1153108A1 Digital read recovery with variable frequency compensation using read only memories
08/23/1983US4400666 Fixed rate delay circuit
08/23/1983CA1152607A1 Arrangement for generating a clock signal
07/1983
07/27/1983EP0084429A1 Automatic receiver gain control in centralized monitor system
07/20/1983EP0083998A1 Scramble or unscramble byte generator
07/19/1983US4394657 Decoder circuit
07/19/1983CA1150398A1 Digital frequency modulation and modified frequency modulation read recovery with data separation
07/13/1983EP0083407A1 Method and apparatus for generating a noiseless sliding block code for a (2,7) channel with rate 1/2
07/12/1983US4393458 Data recovery method and apparatus using variable window
06/1983
06/28/1983US4390980 Demultiplexing plural data streams
06/22/1983EP0081750A1 Self-clocking serial decoder
06/21/1983US4389682 Magnetic recording systems
06/21/1983CA1148659A1 Code converting circuits
06/14/1983US4388727 Receivers suitable for use in remotely-operable switching devices and data transmission systems
06/07/1983CA1147858A1 System for recording digital information in a pulse-length modulation format
05/1983
05/31/1983CA1147470A1 Binary conversion device, particularly for image information transmitters and receivers with redundancy reduction
05/18/1983EP0079107A1 Deriving a clock signal from a received digital signal
05/11/1983EP0078577A1 Code generator
05/11/1983EP0078502A2 Memory circuit
04/1983
04/19/1983CA1145051A1 Spectrum converter for analog signals
04/13/1983EP0076734A2 Tri-level input buffer
04/05/1983US4379286 Digital signal processing circuit
03/1983
03/30/1983EP0075480A2 Serial data communication system
03/29/1983CA1143844A1 Decoding method and system for etab bar code
03/29/1983CA1143832A1 Group coded recording data recovery system
03/23/1983EP0074587A2 Frequency-independent, self-clocking encoding technique and apparatus for digital communications
03/17/1983WO1983000967A1 Frequency-independent, self-clocking encoding technique and apparatus for digital communications
03/08/1983US4376309 Method and apparatus for signal-eye tracking in digital transmission systems
03/02/1983EP0073164A2 Digital transmitter-receiver system with optical transmission and with variable speed
02/1983
02/16/1983EP0072290A2 Optical threshold receiver for a variable-speed digital transmission system
02/15/1983CA1141492A1 Data transmission process and device applying said process
02/09/1983EP0071325A2 Method of and apparatus for demultiplexing a composite signal containing a plurality of data streams
02/08/1983US4373152 Binary to one out of four converter
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