GB1450789A - Run length coding communication apparatus - Google Patents

Run length coding communication apparatus

Info

Publication number
GB1450789A
GB1450789A GB5636073A GB5636073A GB1450789A GB 1450789 A GB1450789 A GB 1450789A GB 5636073 A GB5636073 A GB 5636073A GB 5636073 A GB5636073 A GB 5636073A GB 1450789 A GB1450789 A GB 1450789A
Authority
GB
United Kingdom
Prior art keywords
bit
line
counter
type
black
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
GB5636073A
Other languages
English (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.)
International Business Machines Corp
Original Assignee
International Business Machines 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
Application filed by International Business Machines Corp filed Critical International Business Machines Corp
Publication of GB1450789A publication Critical patent/GB1450789A/en
Expired 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
    • H04N1/419—Systems or arrangements allowing the picture to be reproduced without loss or modification of picture-information in which encoding of the length of a succession of picture-elements of the same value along a scanning line is the only encoding step
    • 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
    • H04N1/04—Scanning arrangements, i.e. arrangements for the displacement of active reading or reproducing elements relative to the original or reproducing medium, or vice versa
    • H04N1/19—Scanning arrangements, i.e. arrangements for the displacement of active reading or reproducing elements relative to the original or reproducing medium, or vice versa using multi-element arrays
    • H04N1/195—Scanning arrangements, i.e. arrangements for the displacement of active reading or reproducing elements relative to the original or reproducing medium, or vice versa using multi-element arrays the array comprising a two-dimensional array or a combination of two-dimensional arrays

Landscapes

  • Engineering & Computer Science (AREA)
  • Multimedia (AREA)
  • Signal Processing (AREA)
  • Compression Of Band Width Or Redundancy In Fax (AREA)
  • Compression, Expansion, Code Conversion, And Decoders (AREA)
  • Facsimile Scanning Arrangements (AREA)
GB5636073A 1972-12-11 1973-12-05 Run length coding communication apparatus Expired GB1450789A (en)

Applications Claiming Priority (1)

Application Number Priority Date Filing Date Title
US00313898A US3830963A (en) 1972-12-11 1972-12-11 System for data compression by dual word coding having photosensitive memory and associated scanning mechanism

Publications (1)

Publication Number Publication Date
GB1450789A true GB1450789A (en) 1976-09-29

Family

ID=23217642

Family Applications (1)

Application Number Title Priority Date Filing Date
GB5636073A Expired GB1450789A (en) 1972-12-11 1973-12-05 Run length coding communication apparatus

Country Status (6)

Country Link
US (1) US3830963A (enExample)
JP (1) JPS5346528B2 (enExample)
DE (1) DE2361234C2 (enExample)
FR (1) FR2210055B1 (enExample)
GB (1) GB1450789A (enExample)
IT (1) IT999369B (enExample)

Cited By (1)

* Cited by examiner, † Cited by third party
Publication number Priority date Publication date Assignee Title
GB2162401A (en) * 1984-06-05 1986-01-29 Canon Kk Image data compression

Families Citing this family (8)

* Cited by examiner, † Cited by third party
Publication number Priority date Publication date Assignee Title
US4193097A (en) * 1977-04-30 1980-03-11 Canon Kabushiki Kaisha Facsimile apparatus
JPS55606A (en) * 1978-05-15 1980-01-07 Ricoh Co Ltd Facsimile device
JPS5537003A (en) * 1978-09-07 1980-03-14 Hitachi Ltd Facsimile transmitter having redundancy suppression function
US4353096A (en) * 1978-10-05 1982-10-05 Nippon Electric Co., Ltd. Digital facsimile system to band-compress half-tone picture signals
US4467363A (en) * 1982-09-27 1984-08-21 International Business Machines Corporation Graphic data compression
US4626829A (en) * 1985-08-19 1986-12-02 Intelligent Storage Inc. Data compression using run length encoding and statistical encoding
US5751231A (en) * 1996-06-26 1998-05-12 Intel Corporation Method and apparatus for run-length encoding using special long-run codes
JP4930600B2 (ja) * 2007-11-30 2012-05-16 株式会社島津製作所 飛行時間測定装置

Family Cites Families (4)

* Cited by examiner, † Cited by third party
Publication number Priority date Publication date Assignee Title
US4135214A (en) * 1969-07-02 1979-01-16 Dacom, Inc. Method and apparatus for compressing facsimile transmission data
US3748379A (en) * 1970-01-22 1973-07-24 Electronic Image Sys Corp Run length coding technique
US3689900A (en) * 1970-08-31 1972-09-05 Gen Electric Photo-coded diode array for read only memory
US3739085A (en) * 1971-07-09 1973-06-12 Addressograph Multigraph Coding technique

Cited By (1)

* Cited by examiner, † Cited by third party
Publication number Priority date Publication date Assignee Title
GB2162401A (en) * 1984-06-05 1986-01-29 Canon Kk Image data compression

Also Published As

Publication number Publication date
FR2210055B1 (enExample) 1977-01-07
JPS5346528B2 (enExample) 1978-12-14
IT999369B (it) 1976-02-20
DE2361234C2 (de) 1982-06-03
FR2210055A1 (enExample) 1974-07-05
US3830963A (en) 1974-08-20
JPS4990016A (enExample) 1974-08-28
DE2361234A1 (de) 1974-06-12

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Legal Events

Date Code Title Description
PS Patent sealed [section 19, patents act 1949]
PCNP Patent ceased through non-payment of renewal fee