GB1517383A - Data compression for facsimile transmission - Google Patents

Data compression for facsimile transmission

Info

Publication number
GB1517383A
GB1517383A GB3492975A GB3492975A GB1517383A GB 1517383 A GB1517383 A GB 1517383A GB 3492975 A GB3492975 A GB 3492975A GB 3492975 A GB3492975 A GB 3492975A GB 1517383 A GB1517383 A GB 1517383A
Authority
GB
United Kingdom
Prior art keywords
luminance
digits
register
scanning
digit
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
GB3492975A
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.)
Philips Electronics UK Ltd
Original Assignee
Philips Electronic and Associated Industries 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 Philips Electronic and Associated Industries Ltd filed Critical Philips Electronic and Associated Industries Ltd
Publication of GB1517383A publication Critical patent/GB1517383A/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
    • G—PHYSICS
    • G06—COMPUTING; CALCULATING OR COUNTING
    • G06T—IMAGE DATA PROCESSING OR GENERATION, IN GENERAL
    • G06T9/00—Image coding
    • G06T9/001—Model-based coding, e.g. wire frame

Landscapes

  • Engineering & Computer Science (AREA)
  • Multimedia (AREA)
  • Signal Processing (AREA)
  • Physics & Mathematics (AREA)
  • General Physics & Mathematics (AREA)
  • Theoretical Computer Science (AREA)
  • Compression, Expansion, Code Conversion, And Decoders (AREA)
  • Facsimile Image Signal Circuits (AREA)
GB3492975A 1974-08-26 1975-08-22 Data compression for facsimile transmission Expired GB1517383A (en)

Applications Claiming Priority (1)

Application Number Priority Date Filing Date Title
DE19742440768 DE2440768C3 (de) 1974-08-26 1974-08-26 Verfahren und Vorrichtung zur Datenkompression für die Faksimile-Übertragung graphischer Information

Publications (1)

Publication Number Publication Date
GB1517383A true GB1517383A (en) 1978-07-12

Family

ID=5924055

Family Applications (1)

Application Number Title Priority Date Filing Date
GB3492975A Expired GB1517383A (en) 1974-08-26 1975-08-22 Data compression for facsimile transmission

Country Status (6)

Country Link
JP (1) JPS5166712A (xx)
DE (1) DE2440768C3 (xx)
FR (1) FR2322494A1 (xx)
GB (1) GB1517383A (xx)
IT (1) IT1041599B (xx)
NL (1) NL7509872A (xx)

Cited By (6)

* Cited by examiner, † Cited by third party
Publication number Priority date Publication date Assignee Title
WO2003105090A1 (en) * 2002-06-07 2003-12-18 Telefonaktiebolaget L M Ericsson Method and apparatus for encoding texture information
GB2491689A (en) * 2011-05-05 2012-12-12 Advanced Risc Mach Ltd Encoding texture data using base-n integer representations
US8891886B2 (en) 2011-09-30 2014-11-18 Arm Limited Method of and apparatus for encoding data
US9142037B2 (en) 2012-07-04 2015-09-22 Arm Limited Methods of and apparatus for encoding and decoding data
US9177415B2 (en) 2013-01-30 2015-11-03 Arm Limited Methods of and apparatus for encoding and decoding data
US10147202B2 (en) 2013-03-15 2018-12-04 Arm Limited Methods of and apparatus for encoding and decoding data

Families Citing this family (3)

* Cited by examiner, † Cited by third party
Publication number Priority date Publication date Assignee Title
DE2615486C2 (de) * 1976-04-09 1983-12-08 Philips Patentverwaltung Gmbh, 2000 Hamburg Verfahren und Anordnung zur Übertragung von Faksimile-Bildsignalen
DE3523247A1 (de) * 1985-06-28 1987-01-02 Siemens Ag Einrichtung zur datenreduktion binaerer datenstroeme
US10031547B2 (en) * 2013-12-18 2018-07-24 Qualcomm Incorporated CCIe receiver logic register write only with receiver clock

Family Cites Families (2)

* Cited by examiner, † Cited by third party
Publication number Priority date Publication date Assignee Title
US3813485A (en) * 1972-01-05 1974-05-28 Ibm System for compression of digital data
JPS4877710A (xx) * 1972-01-19 1973-10-19

Cited By (16)

* Cited by examiner, † Cited by third party
Publication number Priority date Publication date Assignee Title
WO2003105090A1 (en) * 2002-06-07 2003-12-18 Telefonaktiebolaget L M Ericsson Method and apparatus for encoding texture information
US6940511B2 (en) 2002-06-07 2005-09-06 Telefonaktiebolaget L M Ericsson (Publ) Graphics texture processing methods, apparatus and computer program products using texture compression, block overlapping and/or texture filtering
US7633507B2 (en) 2002-06-07 2009-12-15 Telefonaktiebolaget L M Ericsson (Publ) Graphics texture processing methods, apparatus and computer program products using block overlapping and/or texture filtering
CN1659595B (zh) * 2002-06-07 2010-05-12 艾利森电话股份有限公司 用于编码纹理信息的方法和设备
US9058637B2 (en) 2011-05-05 2015-06-16 Arm Limited Method of and apparatus for encoding and decoding data
GB2491689B (en) * 2011-05-05 2014-08-27 Advanced Risc Mach Ltd Method of and apparatus for encoding and decoding data
US9041723B2 (en) 2011-05-05 2015-05-26 Arm Limited Method of and apparatus for encoding and decoding data
GB2491689A (en) * 2011-05-05 2012-12-12 Advanced Risc Mach Ltd Encoding texture data using base-n integer representations
US9524535B2 (en) 2011-05-05 2016-12-20 Arm Limited Method of and apparatus for encoding and decoding data
US9524566B2 (en) 2011-05-05 2016-12-20 Arm Limited Method of and apparatus for encoding and decoding data
US9582845B2 (en) 2011-05-05 2017-02-28 Arm Limited Method of and apparatus for encoding and decoding data
US9626730B2 (en) 2011-05-05 2017-04-18 Arm Limited Method of and apparatus for encoding and decoding data
US8891886B2 (en) 2011-09-30 2014-11-18 Arm Limited Method of and apparatus for encoding data
US9142037B2 (en) 2012-07-04 2015-09-22 Arm Limited Methods of and apparatus for encoding and decoding data
US9177415B2 (en) 2013-01-30 2015-11-03 Arm Limited Methods of and apparatus for encoding and decoding data
US10147202B2 (en) 2013-03-15 2018-12-04 Arm Limited Methods of and apparatus for encoding and decoding data

Also Published As

Publication number Publication date
NL7509872A (nl) 1976-03-01
FR2322494B1 (xx) 1979-01-05
DE2440768C3 (de) 1982-03-18
IT1041599B (it) 1980-01-10
JPS5166712A (en) 1976-06-09
FR2322494A1 (fr) 1977-03-25
DE2440768A1 (de) 1976-03-11
DE2440768B2 (de) 1981-07-09

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Legal Events

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