GB1540617A - Transformation of binary coded signals into a form having lower disparity - Google Patents

Transformation of binary coded signals into a form having lower disparity

Info

Publication number
GB1540617A
GB1540617A GB2996676A GB2996676A GB1540617A GB 1540617 A GB1540617 A GB 1540617A GB 2996676 A GB2996676 A GB 2996676A GB 2996676 A GB2996676 A GB 2996676A GB 1540617 A GB1540617 A GB 1540617A
Authority
GB
United Kingdom
Prior art keywords
transformation
binary coded
coded signals
lower disparity
disparity
Prior art date
Legal status (The legal status is an assumption and is not a legal conclusion. Google has not performed a legal analysis and makes no representation as to the accuracy of the status listed.)
Expired
Application number
GB2996676A
Current Assignee (The listed assignees may be inaccurate. Google has not performed a legal analysis and makes no representation or warranty as to the accuracy of the list.)
Post Office
Original Assignee
Post Office
Priority date (The priority date is an assumption and is not a legal conclusion. Google has not performed a legal analysis and makes no representation as to the accuracy of the date listed.)
Filing date
Publication date
Application filed by Post Office filed Critical Post Office
Priority to GB2996676A priority Critical patent/GB1540617A/en
Publication of GB1540617A publication Critical patent/GB1540617A/en
Expired legal-status Critical Current

Links

Classifications

    • H—ELECTRICITY
    • H04—ELECTRIC COMMUNICATION TECHNIQUE
    • H04L—TRANSMISSION OF DIGITAL INFORMATION, e.g. TELEGRAPHIC COMMUNICATION
    • H04L25/00—Baseband systems
    • H04L25/38—Synchronous or start-stop systems, e.g. for Baudot code
    • H04L25/40—Transmitting circuits; Receiving circuits
    • H04L25/49—Transmitting circuits; Receiving circuits using code conversion at the transmitter; using predistortion; using insertion of idle bits for obtaining a desired frequency spectrum; using three or more amplitude levels ; Baseband coding techniques specific to data transmission systems
    • H04L25/4906—Transmitting circuits; Receiving circuits using code conversion at the transmitter; using predistortion; using insertion of idle bits for obtaining a desired frequency spectrum; using three or more amplitude levels ; Baseband coding techniques specific to data transmission systems using binary codes
    • H04L25/4908—Transmitting circuits; Receiving circuits using code conversion at the transmitter; using predistortion; using insertion of idle bits for obtaining a desired frequency spectrum; using three or more amplitude levels ; Baseband coding techniques specific to data transmission systems using binary codes using mBnB codes

Landscapes

  • Physics & Mathematics (AREA)
  • Spectroscopy & Molecular Physics (AREA)
  • Engineering & Computer Science (AREA)
  • Computer Networks & Wireless Communication (AREA)
  • Signal Processing (AREA)
GB2996676A 1968-12-13 1977-06-30 Transformation of binary coded signals into a form having lower disparity Expired GB1540617A (en)

Priority Applications (1)

Application Number Priority Date Filing Date Title
GB2996676A GB1540617A (en) 1968-12-13 1977-06-30 Transformation of binary coded signals into a form having lower disparity

Applications Claiming Priority (2)

Application Number Priority Date Filing Date Title
GB5950368 1968-12-13
GB2996676A GB1540617A (en) 1968-12-13 1977-06-30 Transformation of binary coded signals into a form having lower disparity

Publications (1)

Publication Number Publication Date
GB1540617A true GB1540617A (en) 1979-02-14

Family

ID=26260183

Family Applications (1)

Application Number Title Priority Date Filing Date
GB2996676A Expired GB1540617A (en) 1968-12-13 1977-06-30 Transformation of binary coded signals into a form having lower disparity

Country Status (1)

Country Link
GB (1) GB1540617A (en)

Cited By (21)

* Cited by examiner, † Cited by third party
Publication number Priority date Publication date Assignee Title
FR2462068A1 (en) * 1979-07-23 1981-02-06 Sony Corp SYSTEM FOR CONVERTING CODE AND IN PARTICULAR FOR PROCESSING VIDEO SIGNALS
FR2469047A1 (en) * 1979-11-02 1981-05-08 Sony Corp METHOD AND APPARATUS FOR ENCODING A DIGITAL SIGNAL SO THAT IT PRESENTS A LOW DIRECT CURRENT COMPONENT, AS WELL AS FOR DECODING IT
FR2469046A1 (en) * 1979-10-29 1981-05-08 Sony Corp IMPROVED METHOD AND APPARATUS FOR ENCODING A DIGITAL SIGNAL SO THAT IT PRESENTS A MINIMUM DIRECT CURRENT COMPONENT
FR2472310A1 (en) * 1979-12-18 1981-06-26 Lignes Telegraph Telephon Transcoding of binary information for line transmission - by converting input binary code into code at four thirds input frequency for reduced spectrum
FR2486740A1 (en) * 1980-07-14 1982-01-15 Philips Nv METHOD FOR ENCODING A BINARY DATA BIT BLOCK SERIES IN THE FORM OF A BINARY CHANNEL BIT BLOCK SERIES AND DEVICE FOR DECODING THE CODED DATA BITS ACCORDING TO THE METHOD AND RECORDING CARRIER PROVIDED WITH AN INFORMATION STRUCTURE
FR2495858A1 (en) * 1980-12-05 1982-06-11 Thomson Csf METHOD FOR SERIAL PARALLEL TRANSCODING OF A PARALLEL DIGITAL TRAIN AND DEVICE FOR TRANSMITTING DIGITAL VIDEO SIGNALS USING SUCH A METHOD
FR2504755A1 (en) * 1981-04-24 1982-10-29 Sony Corp METHOD AND APPARATUS FOR ENCODING DIGITAL SIGNAL WITHOUT REVERSE ZERO RETURN WITH LOW CONTINUOUS COMPONENT
EP0150083A2 (en) * 1984-01-20 1985-07-31 Koninklijke Philips Electronics N.V. Apparatus for encoding n-bit information words into m-bit code words, apparatus for decoding m-bit code words into n-bit information words
EP0150082A2 (en) * 1984-01-20 1985-07-31 Koninklijke Philips Electronics N.V. Method of transmitting information, encoding device for use in the method, and decoding device for use in the method
EP0166504A2 (en) * 1984-06-22 1986-01-02 Northern Telecom Limited Transmitting a digital signal and an additional signal
EP0193153A2 (en) * 1985-02-25 1986-09-03 Matsushita Electric Industrial Co., Ltd. Digital data recording and reproducing method
FR2589653A1 (en) * 1985-11-05 1987-05-07 Lignes Telegraph Telephon DEVICE FOR IMPLEMENTING A HIGH ACCUMULATED LOW DISPARITY CODE IN HIGH SPEED DIGITAL TRANSMISSION AND CODING METHOD USING SUCH A DEVICE
US4750138A (en) * 1984-10-10 1988-06-07 U.S. Philips Corporation Method of transmitting information, encoding device for use in the method, and decoding device for use in the method
US4759080A (en) * 1983-11-16 1988-07-19 Nec Corporation Coherent optical communication system with FSK heterodyne or homodyne detection and little influence by distortion of a modulated optical signal
US5396503A (en) * 1993-02-19 1995-03-07 Hewlett-Packard Company Method and system for communicating data
US5396239A (en) * 1989-07-17 1995-03-07 Digital Equipment Corporation Data and forward error control coding techniques for digital signals
US5410309A (en) * 1992-11-06 1995-04-25 Hewlett-Packard Company Method and system for communicating data
US6717994B1 (en) 1999-05-12 2004-04-06 Koninklijke Philips Electronics N.V. Apparatus for decoding a serial datastream of channel words into a datastream of information words
WO2006062607A1 (en) * 2004-12-12 2006-06-15 Hewlett-Packard Development Company, L.P. Error detection and correction
WO2006062605A1 (en) * 2004-12-12 2006-06-15 Hewlett-Packard Development Company, L.P. Data modulation
US7405679B1 (en) 2007-01-30 2008-07-29 International Business Machines Corporation Techniques for 9B10B and 7B8B coding and decoding

Cited By (32)

* Cited by examiner, † Cited by third party
Publication number Priority date Publication date Assignee Title
FR2462068A1 (en) * 1979-07-23 1981-02-06 Sony Corp SYSTEM FOR CONVERTING CODE AND IN PARTICULAR FOR PROCESSING VIDEO SIGNALS
FR2469046A1 (en) * 1979-10-29 1981-05-08 Sony Corp IMPROVED METHOD AND APPARATUS FOR ENCODING A DIGITAL SIGNAL SO THAT IT PRESENTS A MINIMUM DIRECT CURRENT COMPONENT
FR2469047A1 (en) * 1979-11-02 1981-05-08 Sony Corp METHOD AND APPARATUS FOR ENCODING A DIGITAL SIGNAL SO THAT IT PRESENTS A LOW DIRECT CURRENT COMPONENT, AS WELL AS FOR DECODING IT
FR2472310A1 (en) * 1979-12-18 1981-06-26 Lignes Telegraph Telephon Transcoding of binary information for line transmission - by converting input binary code into code at four thirds input frequency for reduced spectrum
FR2486740A1 (en) * 1980-07-14 1982-01-15 Philips Nv METHOD FOR ENCODING A BINARY DATA BIT BLOCK SERIES IN THE FORM OF A BINARY CHANNEL BIT BLOCK SERIES AND DEVICE FOR DECODING THE CODED DATA BITS ACCORDING TO THE METHOD AND RECORDING CARRIER PROVIDED WITH AN INFORMATION STRUCTURE
EP0053958A1 (en) * 1980-12-05 1982-06-16 Thomson-Csf Process for the parallel/series conversion of a digital parallel sequence
FR2495858A1 (en) * 1980-12-05 1982-06-11 Thomson Csf METHOD FOR SERIAL PARALLEL TRANSCODING OF A PARALLEL DIGITAL TRAIN AND DEVICE FOR TRANSMITTING DIGITAL VIDEO SIGNALS USING SUCH A METHOD
US4794627A (en) * 1980-12-05 1988-12-27 Thomson-Csf Process for the parallel-series code conversion of a parallel digital train and a device for the transmission of digitized video signals using such a process
FR2504755A1 (en) * 1981-04-24 1982-10-29 Sony Corp METHOD AND APPARATUS FOR ENCODING DIGITAL SIGNAL WITHOUT REVERSE ZERO RETURN WITH LOW CONTINUOUS COMPONENT
US4759080A (en) * 1983-11-16 1988-07-19 Nec Corporation Coherent optical communication system with FSK heterodyne or homodyne detection and little influence by distortion of a modulated optical signal
EP0150083A2 (en) * 1984-01-20 1985-07-31 Koninklijke Philips Electronics N.V. Apparatus for encoding n-bit information words into m-bit code words, apparatus for decoding m-bit code words into n-bit information words
EP0150082A2 (en) * 1984-01-20 1985-07-31 Koninklijke Philips Electronics N.V. Method of transmitting information, encoding device for use in the method, and decoding device for use in the method
AU575280B2 (en) * 1984-01-20 1988-07-21 Philips Electronics N.V. Method of transmitting information, encoding and decoding device
EP0150082A3 (en) * 1984-01-20 1987-02-25 N.V. Philips' Gloeilampenfabrieken Method of transmitting information, encoding device for use in the method, and decoding device for use in the method
EP0150083A3 (en) * 1984-01-20 1987-03-11 N.V. Philips' Gloeilampenfabrieken Method of encoding n-bit information words into m-bit code words, apparatus for carrying out said method, method of decoding m-bit code words into n-bit information words, and apparatus for carrying out said method
EP0166504A3 (en) * 1984-06-22 1987-09-30 Northern Telecom Limited Transmitting a digital signal and an additional signal
EP0166504A2 (en) * 1984-06-22 1986-01-02 Northern Telecom Limited Transmitting a digital signal and an additional signal
US4750138A (en) * 1984-10-10 1988-06-07 U.S. Philips Corporation Method of transmitting information, encoding device for use in the method, and decoding device for use in the method
EP0193153A3 (en) * 1985-02-25 1987-10-07 Matsushita Electric Industrial Co., Ltd. Digital data recording and reproducing method
EP0193153A2 (en) * 1985-02-25 1986-09-03 Matsushita Electric Industrial Co., Ltd. Digital data recording and reproducing method
EP0228528A1 (en) * 1985-11-05 1987-07-15 Alcatel Cit Apparatus for implementing a code with a small digital sum variation in a fast digital transmission, and coding method using such an apparatus
US4731797A (en) * 1985-11-05 1988-03-15 Alcatel Circuit for implementing a low accumulated disparity code in high data rate digital transmission, and a coding method using such a circuit
FR2589653A1 (en) * 1985-11-05 1987-05-07 Lignes Telegraph Telephon DEVICE FOR IMPLEMENTING A HIGH ACCUMULATED LOW DISPARITY CODE IN HIGH SPEED DIGITAL TRANSMISSION AND CODING METHOD USING SUCH A DEVICE
US5396239A (en) * 1989-07-17 1995-03-07 Digital Equipment Corporation Data and forward error control coding techniques for digital signals
US5410309A (en) * 1992-11-06 1995-04-25 Hewlett-Packard Company Method and system for communicating data
US5396503A (en) * 1993-02-19 1995-03-07 Hewlett-Packard Company Method and system for communicating data
US6717994B1 (en) 1999-05-12 2004-04-06 Koninklijke Philips Electronics N.V. Apparatus for decoding a serial datastream of channel words into a datastream of information words
WO2006062607A1 (en) * 2004-12-12 2006-06-15 Hewlett-Packard Development Company, L.P. Error detection and correction
WO2006062605A1 (en) * 2004-12-12 2006-06-15 Hewlett-Packard Development Company, L.P. Data modulation
US7404133B2 (en) 2004-12-12 2008-07-22 Hewlett-Packard Development Company, L.P. Error detection and correction employing modulation symbols satisfying predetermined criteria
US7405679B1 (en) 2007-01-30 2008-07-29 International Business Machines Corporation Techniques for 9B10B and 7B8B coding and decoding
US7592933B2 (en) 2007-01-30 2009-09-22 International Business Machines Corporation Techniques for 9B10B and 7B8B coding and decoding

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Legal Events

Date Code Title Description
PS Patent sealed
746 Register noted 'licences of right' (sect. 46/1977)
732 Registration of transactions, instruments or events in the register (sect. 32/1977)
PE20 Patent expired after termination of 20 years