GB2041703B - Coding decoding digital data - Google Patents

Coding decoding digital data

Info

Publication number
GB2041703B
GB2041703B GB7943488A GB7943488A GB2041703B GB 2041703 B GB2041703 B GB 2041703B GB 7943488 A GB7943488 A GB 7943488A GB 7943488 A GB7943488 A GB 7943488A GB 2041703 B GB2041703 B GB 2041703B
Authority
GB
United Kingdom
Prior art keywords
digital data
coding decoding
decoding digital
coding
data
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
GB7943488A
Other versions
GB2041703A (en
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.)
T E ELECTRONICS Ltd
Original Assignee
T E ELECTRONICS Ltd
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 T E ELECTRONICS Ltd filed Critical T E ELECTRONICS Ltd
Priority to GB7943488A priority Critical patent/GB2041703B/en
Publication of GB2041703A publication Critical patent/GB2041703A/en
Application granted granted Critical
Publication of GB2041703B publication Critical patent/GB2041703B/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
    • H04L25/4917—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 multilevel codes
    • H04L25/4923—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 multilevel codes using ternary codes
    • H04L25/4925—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 multilevel codes using ternary codes using balanced bipolar ternary codes
    • G—PHYSICS
    • G11—INFORMATION STORAGE
    • G11B—INFORMATION STORAGE BASED ON RELATIVE MOVEMENT BETWEEN RECORD CARRIER AND TRANSDUCER
    • G11B20/00—Signal processing not specific to the method of recording or reproducing; Circuits therefor
    • G11B20/10—Digital recording or reproducing
    • G11B20/14—Digital recording or reproducing using self-clocking codes
    • G11B20/1403—Digital recording or reproducing using self-clocking codes characterised by the use of two levels
    • G11B20/1407—Digital recording or reproducing using self-clocking codes characterised by the use of two levels code representation depending on a single bit, i.e. where a one is always represented by a first code symbol while a zero is always represented by a second code symbol
    • G11B20/1411—Digital recording or reproducing using self-clocking codes characterised by the use of two levels code representation depending on a single bit, i.e. where a one is always represented by a first code symbol while a zero is always represented by a second code symbol conversion to or from pulse width coding
    • G—PHYSICS
    • G11—INFORMATION STORAGE
    • G11B—INFORMATION STORAGE BASED ON RELATIVE MOVEMENT BETWEEN RECORD CARRIER AND TRANSDUCER
    • G11B20/00—Signal processing not specific to the method of recording or reproducing; Circuits therefor
    • G11B20/10—Digital recording or reproducing
    • G11B20/14—Digital recording or reproducing using self-clocking codes
    • G11B20/1488—Digital recording or reproducing using self-clocking codes characterised by the use of three levels
    • G11B20/1492—Digital recording or reproducing using self-clocking codes characterised by the use of three levels two levels are symmetric, in respect of the sign to the third level which is "zero"

Landscapes

  • Engineering & Computer Science (AREA)
  • Signal Processing (AREA)
  • Physics & Mathematics (AREA)
  • Spectroscopy & Molecular Physics (AREA)
  • Computer Networks & Wireless Communication (AREA)
  • Digital Magnetic Recording (AREA)
  • Signal Processing For Digital Recording And Reproducing (AREA)
GB7943488A 1978-12-19 1979-12-18 Coding decoding digital data Expired GB2041703B (en)

Priority Applications (1)

Application Number Priority Date Filing Date Title
GB7943488A GB2041703B (en) 1978-12-19 1979-12-18 Coding decoding digital data

Applications Claiming Priority (2)

Application Number Priority Date Filing Date Title
GB7849101 1978-12-19
GB7943488A GB2041703B (en) 1978-12-19 1979-12-18 Coding decoding digital data

Publications (2)

Publication Number Publication Date
GB2041703A GB2041703A (en) 1980-09-10
GB2041703B true GB2041703B (en) 1983-09-01

Family

ID=26270017

Family Applications (1)

Application Number Title Priority Date Filing Date
GB7943488A Expired GB2041703B (en) 1978-12-19 1979-12-18 Coding decoding digital data

Country Status (1)

Country Link
GB (1) GB2041703B (en)

Families Citing this family (2)

* Cited by examiner, † Cited by third party
Publication number Priority date Publication date Assignee Title
DE3322623A1 (en) * 1983-06-23 1985-01-03 Siemens AG, 1000 Berlin und 8000 München CIRCUIT ARRANGEMENT FOR RECOVERY OF DATA CONTAINING IN BINARY DATA SIGNALS
GB9515706D0 (en) 1995-07-31 2009-04-29 Qinetiq Ltd Communications System

Also Published As

Publication number Publication date
GB2041703A (en) 1980-09-10

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Legal Events

Date Code Title Description
PCNP Patent ceased through non-payment of renewal fee