DE3483746D1 - Faksimile-einrichtung fuer lauflaengen-kodierung. - Google Patents

Faksimile-einrichtung fuer lauflaengen-kodierung.

Info

Publication number
DE3483746D1
DE3483746D1 DE8484903256T DE3483746T DE3483746D1 DE 3483746 D1 DE3483746 D1 DE 3483746D1 DE 8484903256 T DE8484903256 T DE 8484903256T DE 3483746 T DE3483746 T DE 3483746T DE 3483746 D1 DE3483746 D1 DE 3483746D1
Authority
DE
Germany
Prior art keywords
facsimile device
running coding
coding
running
facsimile
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
DE8484903256T
Other languages
English (en)
Inventor
Krishna Rallapalli
Shinkyo Kaku
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.)
Advanced Micro Devices Inc
Original Assignee
Advanced Micro Devices Inc
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 Advanced Micro Devices Inc filed Critical Advanced Micro Devices Inc
Application granted granted Critical
Publication of DE3483746D1 publication Critical patent/DE3483746D1/de
Anticipated expiration legal-status Critical
Expired - Lifetime legal-status Critical Current

Links

Classifications

    • 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
    • H03M7/46—Conversion to or from run-length codes, i.e. by representing the number of consecutive digits, or groups of digits, of the same kind by a code word and a digit indicative of that kind
    • G—PHYSICS
    • G06—COMPUTING; CALCULATING OR COUNTING
    • G06T—IMAGE DATA PROCESSING OR GENERATION, IN GENERAL
    • G06T9/00—Image coding
    • G06T9/005—Statistical coding, e.g. Huffman, run length coding
    • 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

Landscapes

  • Engineering & Computer Science (AREA)
  • Multimedia (AREA)
  • Theoretical Computer Science (AREA)
  • Signal Processing (AREA)
  • Physics & Mathematics (AREA)
  • General Physics & Mathematics (AREA)
  • Compression, Expansion, Code Conversion, And Decoders (AREA)
  • Image Processing (AREA)
DE8484903256T 1983-08-19 1984-08-17 Faksimile-einrichtung fuer lauflaengen-kodierung. Expired - Lifetime DE3483746D1 (de)

Applications Claiming Priority (2)

Application Number Priority Date Filing Date Title
US06/524,817 US4542413A (en) 1983-08-19 1983-08-19 Facsimile device for run length coding
PCT/US1984/001327 WO1985001171A1 (en) 1983-08-19 1984-08-17 Facsimile device for run length coding

Publications (1)

Publication Number Publication Date
DE3483746D1 true DE3483746D1 (de) 1991-01-24

Family

ID=24090789

Family Applications (1)

Application Number Title Priority Date Filing Date
DE8484903256T Expired - Lifetime DE3483746D1 (de) 1983-08-19 1984-08-17 Faksimile-einrichtung fuer lauflaengen-kodierung.

Country Status (5)

Country Link
US (1) US4542413A (de)
EP (1) EP0152473B1 (de)
JP (1) JPS60502080A (de)
DE (1) DE3483746D1 (de)
WO (1) WO1985001171A1 (de)

Families Citing this family (15)

* Cited by examiner, † Cited by third party
Publication number Priority date Publication date Assignee Title
DE3482298D1 (de) * 1983-12-08 1990-06-21 Crosfield Electronics Ltd Apparat zum kodieren und dekodieren von daten.
JPH0783427B2 (ja) * 1984-04-03 1995-09-06 キヤノン株式会社 画像伝送方法
GB2172464B (en) * 1985-01-31 1989-02-01 Canon Kk Image transmission apparatus
JPS62145988A (ja) * 1985-12-20 1987-06-30 Fujitsu Ltd 適応的走査線変換画像伝送方式
US4760459A (en) * 1986-07-30 1988-07-26 Kabushiki Kaisha Toshiba Binary data compression and expansion processing apparatus
US4748512A (en) * 1986-08-25 1988-05-31 National Business Systems, Inc. Data compaction process for digitized images
US4807043A (en) * 1987-03-24 1989-02-21 Advanced Micro Devices, Inc. Two-dimensional facsimile encoding apparatus with coding and reference line windowing means and color change detectors
US4839738A (en) * 1987-04-22 1989-06-13 Advanced Micro Devices, Inc. Apparatus for decoding facsimile coded data to image data with coding and reference line windowing and color change detection
JPS6478381A (en) * 1987-09-21 1989-03-23 Toshiba Corp Picture processing method
US5343540A (en) * 1990-02-07 1994-08-30 Fuji Photo Film Co., Ltd. Method for detecting positions of consecutive bits set to predetermined codes
US5245441A (en) * 1991-12-12 1993-09-14 Ruben Murray A Document imaging processing method and apparatus
US5721720A (en) * 1994-12-28 1998-02-24 Kabushiki Kaisha Toshiba Optical recording medium recording pixel data as a compressed unit data block
US5726760A (en) * 1996-04-03 1998-03-10 Oce-Nederland, B.V. Method and apparatus for converting image representation formats as well as an image production system provided with such an apparatus
US5751231A (en) * 1996-06-26 1998-05-12 Intel Corporation Method and apparatus for run-length encoding using special long-run codes
US6535150B1 (en) 1999-09-03 2003-03-18 Whamtech, Inc. Method and apparatus for implementing run-length compression

Family Cites Families (9)

* 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
US3783187A (en) * 1972-05-05 1974-01-01 Hitachi Ltd Facsimile transmission system
US4167758A (en) * 1976-04-09 1979-09-11 U.S. Philips Corporation Method and device for transmitting facsimile picture signals
US4185302A (en) * 1978-07-20 1980-01-22 Bell Telephone Laboratories, Incorporated Run length encoding of facsimile signals
US4185303A (en) * 1978-11-30 1980-01-22 Bell Telephone Laboratories, Incorporated Run length encoding of facsimile pictures
US4316222A (en) * 1979-12-07 1982-02-16 Ncr Canada Ltd. - Ncr Canada Ltee Method and apparatus for compression and decompression of digital image data
JPS57197961A (en) * 1981-03-11 1982-12-04 Fujitsu Ltd Conversion system for image data
KR850001657B1 (ko) * 1981-03-06 1985-11-06 야마모도 다꾸마 영상(影像) 데이터 변환법 및 문자 코우드와 문자패턴 변환장치
JPS5958971A (ja) * 1982-09-29 1984-04-04 Hitachi Ltd 符号化回路

Also Published As

Publication number Publication date
EP0152473A1 (de) 1985-08-28
US4542413A (en) 1985-09-17
EP0152473A4 (de) 1987-06-16
EP0152473B1 (de) 1990-12-12
WO1985001171A1 (en) 1985-03-14
JPS60502080A (ja) 1985-11-28
JPH053950B2 (de) 1993-01-18

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Legal Events

Date Code Title Description
8364 No opposition during term of opposition
8339 Ceased/non-payment of the annual fee