GB2319140B - A coding system - Google Patents

A coding system

Info

Publication number
GB2319140B
GB2319140B GB9802667A GB9802667A GB2319140B GB 2319140 B GB2319140 B GB 2319140B GB 9802667 A GB9802667 A GB 9802667A GB 9802667 A GB9802667 A GB 9802667A GB 2319140 B GB2319140 B GB 2319140B
Authority
GB
United Kingdom
Prior art keywords
coding system
coding
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 - Lifetime
Application number
GB9802667A
Other versions
GB9802667D0 (en
GB2319140A (en
Inventor
Tomohiro Kimura
Shigenori Kino
Masayuki Yoshida
Fukimata Ono
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.)
Mitsubishi Electric Corp
Original Assignee
Mitsubishi Electric Corp
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
Priority claimed from JP14031194A external-priority patent/JP3027089B2/en
Application filed by Mitsubishi Electric Corp filed Critical Mitsubishi Electric Corp
Priority claimed from GB9720881A external-priority patent/GB2316569B/en
Publication of GB9802667D0 publication Critical patent/GB9802667D0/en
Publication of GB2319140A publication Critical patent/GB2319140A/en
Application granted granted Critical
Publication of GB2319140B publication Critical patent/GB2319140B/en
Anticipated expiration legal-status Critical
Expired - Lifetime legal-status Critical Current

Links

Classifications

    • H—ELECTRICITY
    • H04—ELECTRIC COMMUNICATION TECHNIQUE
    • H04N—PICTORIAL COMMUNICATION, e.g. TELEVISION
    • H04N1/00—Scanning, transmission or reproduction of documents or the like, e.g. facsimile transmission; Details thereof
    • H04N1/41—Bandwidth or redundancy reduction
    • H04N1/411—Bandwidth or redundancy reduction for the transmission or storage or reproduction of two-tone pictures, e.g. black and white pictures
    • H04N1/413—Systems or arrangements allowing the picture to be reproduced without loss or modification of picture-information
    • H04N1/417—Systems or arrangements allowing the picture to be reproduced without loss or modification of picture-information using predictive or differential encoding
    • H04N1/4175—Systems or arrangements allowing the picture to be reproduced without loss or modification of picture-information using predictive or differential encoding involving the encoding of tone transitions with respect to tone transitions in a reference line
    • H—ELECTRICITY
    • H03—ELECTRONIC CIRCUITRY
    • H03M—CODING; DECODING; CODE CONVERSION IN GENERAL
    • H03M7/00—Conversion of a code where information is represented by a given sequence or number of digits to a code where the same, similar or subset of information is represented by a different sequence or number of digits
    • H03M7/30—Compression; Expansion; Suppression of unnecessary data, e.g. redundancy reduction
    • H03M7/40—Conversion to or from variable length codes, e.g. Shannon-Fano code, Huffman code, Morse code
    • H—ELECTRICITY
    • H04—ELECTRIC COMMUNICATION TECHNIQUE
    • H04N—PICTORIAL COMMUNICATION, e.g. TELEVISION
    • H04N1/00—Scanning, transmission or reproduction of documents or the like, e.g. facsimile transmission; Details thereof
    • H04N1/32—Circuits or arrangements for control or supervision between transmitter and receiver or between image input and image output device, e.g. between a still-image camera and its memory or between a still-image camera and a printer device
    • H04N1/333—Mode signalling or mode changing; Handshaking therefor
    • H04N1/33307—Mode signalling or mode changing; Handshaking therefor prior to start of transmission, input or output of the picture signal only
    • H04N1/33315—Mode signalling or mode changing; Handshaking therefor prior to start of transmission, input or output of the picture signal only reading or reproducing mode only, e.g. sheet size, resolution

Landscapes

  • Engineering & Computer Science (AREA)
  • Multimedia (AREA)
  • Signal Processing (AREA)
  • Theoretical Computer Science (AREA)
  • Compression, Expansion, Code Conversion, And Decoders (AREA)
GB9802667A 1993-08-06 1994-07-27 A coding system Expired - Lifetime GB2319140B (en)

Applications Claiming Priority (3)

Application Number Priority Date Filing Date Title
JP19640693 1993-08-06
JP14031194A JP3027089B2 (en) 1993-08-06 1994-06-22 Encoding method, decoding method and encoding / decoding method
GB9720881A GB2316569B (en) 1993-08-06 1994-07-27 A coding system

Publications (3)

Publication Number Publication Date
GB9802667D0 GB9802667D0 (en) 1998-04-01
GB2319140A GB2319140A (en) 1998-05-13
GB2319140B true GB2319140B (en) 1998-06-24

Family

ID=27269039

Family Applications (1)

Application Number Title Priority Date Filing Date
GB9802667A Expired - Lifetime GB2319140B (en) 1993-08-06 1994-07-27 A coding system

Country Status (1)

Country Link
GB (1) GB2319140B (en)

Also Published As

Publication number Publication date
GB9802667D0 (en) 1998-04-01
GB2319140A (en) 1998-05-13

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Legal Events

Date Code Title Description
746 Register noted 'licences of right' (sect. 46/1977)

Effective date: 20070417

PE20 Patent expired after termination of 20 years

Expiry date: 20140726