Patents
Sitemap › H03 - Basic electronic circuitry › H03M - Coding, decoding or code conversion, in general › H03M 5 - Conversion of the form of the representation of individual digits
Patents for H03M 5 - Conversion of the form of the representation of individual digits (4,193)
02/1983
02/08/1983CA1140999A1 Dc free encoding for data transmission
02/08/1983CA1140998A1 Dc free encoding for data transmission including limited look-ahead means
01/1983
01/18/1983US4369516 Self-clocking data transmission system
01/18/1983US4369512 Digital transmission circuit using means for introducing a redundancy on the most significant bit
12/1982
12/22/1982EP0067310A2 Bisynchronous protocol communication circuit
12/14/1982CA1137571A1 Method of demodulating a quadphase coded data signal and receiver for carrying out the method
12/08/1982EP0066512A1 Binary data coding method and its application to a magnetic tape transfer system for a digital video signal
12/01/1982EP0065596A2 Signal decoder
11/1982
11/30/1982US4361876 Microcomputer with logic for selectively disabling serial communications
11/30/1982US4361817 Bi-phase modulator/demodulator
11/23/1982CA1136279A1 Method and means for encoding and decoding digital data
11/10/1982EP0064406A1 Encoding binary data
11/09/1982US4358852 Method of modulation and demodulation of data and apparatus for carrying out the same
11/02/1982CA1134943A1 High density bias linearized magnetic recording system utilizing nyquist band-width partial response transmission
10/1982
10/27/1982EP0063443A2 A digital waveform conditioning circuit
10/20/1982EP0062922A2 Burst signal transmission system
10/19/1982US4355306 Dynamic stack data compression and decompression system
10/19/1982CA1134046A1 Circuit for converting binary digital signals into pseudoternary a.c. pulses
09/1982
09/28/1982CA1132712A1 Code converting method and system
09/21/1982US4350973 Receiver apparatus for converting optically encoded binary data to electrical signals
09/01/1982EP0058752A1 Method and arrangement for a fault-free synchronization of asynchronous pulses
08/1982
08/24/1982US4346367 Circuit for converting binary digital signals into pseudoternary A.C. pulses
08/24/1982US4346353 Modulator and demodulator circuits for modified delay modulation method
08/18/1982EP0058081A2 Methods and apparatus for encoding binary data
08/11/1982EP0057274A2 Digital image data compression apparatus
07/1982
07/27/1982US4342054 Information read device
07/27/1982US4341964 Precision time duration detector
07/07/1982EP0055670A2 Duty cycle control circuit for a periodic pulse signal, and 2n frequency multiplier including this circuit
06/1982
06/30/1982EP0055123A1 Data transmission system
06/29/1982US4337457 Method for the serial transmission of binary data and devices for its implementation
05/1982
05/05/1982EP0050930A1 Improvements in or relating to data transmission systems
05/04/1982CA1123101A1 Data transmission system
04/1982
04/27/1982CA1122711A1 Method and apparatus for encoding and recovering binary digital data
04/01/1982WO1982001111A1 Self-clocking data transmission system
03/1982
03/24/1982EP0048064A1 Method and system for transmitting information in a communication system
03/23/1982CA1120584A1 Double density read recovery
03/16/1982US4320465 Digital frequency modulation and modified frequency modulation read recovery with data separation
03/10/1982EP0046938A1 Circuit for synchronising a transmitting-receiving set with the data network of a digital information system
03/02/1982CA1119271A1 Receiver for digital signals in line code
02/1982
02/23/1982US4317212 Arrangement for checking the synchronization of a receiver
02/02/1982US4314371 Digital radio communications system with high noise immunity
01/1982
01/26/1982US4313203 Transmission system for the transmission of binary data symbols
01/26/1982US4313088 Arrangement for generating a clock signal
01/20/1982EP0044073A1 System for recording digital information in a pulse-length modulation format
01/19/1982US4312073 Spectrum converter for analog signals
01/19/1982US4311989 Binary converter in particular for transmitters and receivers of reduced redundancy image data
01/12/1982CA1116240A1 System for data transmission by means of an angle-modulated carrier of constant amplitude
12/1981
12/02/1981EP0040952A1 Precision time duration detector
11/1981
11/24/1981US4302690 CMOS Circuit for converting a ternary signal into two binary signals, and use of this CMOS circuit
11/24/1981US4302631 Decimator apparatus for decreasing the word rate of a digital signal of the type employed in digital telephone systems
11/03/1981US4298956 Digital read recovery with variable frequency compensation using read only memories
09/1981
09/29/1981US4292593 Method of demodulating a quadphase coded data signal and receiver for carrying out the method
09/29/1981CA1109932A1 Unipolar to bipolar converter
08/1981
08/26/1981EP0034467A1 Receivers suitable for use in remotely-operable switching devices and data transmission systems
08/26/1981EP0034355A1 Interface for linking two data processing systems
08/19/1981EP0034055A2 Variable window data recovery apparatus and method
08/11/1981US4283789 Data transmission method and devices for practicing said method
07/1981
07/28/1981US4281291 Arrangement for detecting the binary values of bit cells having center transitions subject to phase distortion
07/07/1981CA1104719A1 Read apparatus
07/01/1981EP0031226A2 A decoder circuit
06/1981
06/30/1981US4276650 Method of synchronizing a quadphase receiver and clock synchronization device for carrying out the method
06/30/1981US4276649 Receiver for digital signals in line code
06/30/1981US4276544 Code converting circuits
06/16/1981CA1103356A1 Method of decoding waveforms
06/09/1981CA1102916A1 Sync pattern encoding system for run-length limited codes
05/1981
05/26/1981US4270026 Interpolator apparatus for increasing the word rate of a digital signal of the type employed in digital telephone systems
05/13/1981EP0028298A2 Method for the transmission of digital signals by means of a signal generator
05/06/1981EP0027900A1 Improved decoding method and system for ETAB bar code
04/1981
04/07/1981US4260952 Circuit for decoding a diphase signal
04/07/1981CA1098977A1 Apparatus for transmitting multilevel signals on optical fibres
03/1981
03/04/1981EP0024295A1 Apparatus for decoding diphase input signals
02/1981
02/11/1981EP0023783A1 Data recovery circuit
02/03/1981CA1095166A1 Device for transmitting digital information
01/1981
01/13/1981US4245263 Write precompensation and write encoding for FM and MFM recording
01/13/1981US4245152 Decoding method and system for ETAB bar code
01/06/1981US4244051 Data communication method and apparatus therefor
12/1980
12/16/1980CA1152182B Dc-free encoding for data transmission system
12/10/1980EP0019821A2 Method and device for transmitting a binary sequence
12/09/1980US4238835 Analyzing apparatus with microcomputer
12/02/1980US4237496 Device for coding/decoding data for a medium
12/02/1980CA1152181B Decoding apparatus and method for d.c. free data transmission system
11/1980
11/26/1980EP0019348A1 Tri-state encoding circuit for electronic musical instrument
11/25/1980CA1090476A1 Apparatus for word synchronization in an optical communication system
11/18/1980US4234897 DC Free encoding for data transmission
11/18/1980CA1089993A1 Apparatus and method for generating a data code with a spectral null
11/12/1980EP0018686A1 Spectrum converter for analog signals
10/1980
10/28/1980US4230903 Data transmission system
10/21/1980US4229821 System for data transmission by means of an angle-modulated carrier of constant amplitude
10/21/1980US4229819 Data transmission system
09/1980
09/30/1980CA1086834A1 Data clock separator with missing clock detect
09/09/1980US4222080 Velocity tolerant decoding technique
09/02/1980CA1152164B Dc free encoding for data transmission system
09/02/1980CA1085000A1 Dc free encoding for data transmission system
08/1980
08/26/1980US4219890 Digital signal regulation system
08/26/1980US4219851 Group coded recording data recovery system
08/06/1980EP0013990A1 Serial binary information transmission method and devices for implementing the method
08/05/1980CA1083225A1 Apparatus for establishing communication between a first radio transmitter and receiver and a second radio transmitter and receiver
08/05/1980CA1083224A1 Apparatus for indicating synchronization and out-of- synchronization conditions
08/05/1980CA1083223A1 Apparatus for indicating synchronization of a radio receiver with a radio transmitter
07/1980
07/09/1980EP0012880A1 Method of decoding phase-encoded, frequency-modulation encoded and modified-frequency modulation encoded binary data
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