JPS5723363A - Method and device for compressing expanding facsimile transmission system data - Google Patents

Method and device for compressing expanding facsimile transmission system data

Info

Publication number
JPS5723363A
JPS5723363A JP6677881A JP6677881A JPS5723363A JP S5723363 A JPS5723363 A JP S5723363A JP 6677881 A JP6677881 A JP 6677881A JP 6677881 A JP6677881 A JP 6677881A JP S5723363 A JPS5723363 A JP S5723363A
Authority
JP
Japan
Prior art keywords
transmission system
system data
facsimile transmission
compressing expanding
compressing
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.)
Pending
Application number
JP6677881A
Other languages
English (en)
Inventor
Emu Urufuramu Rarii
Shii Baaretsuto Furederitsuku
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.)
EIEMU INTERN Inc
Original Assignee
EIEMU INTERN 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 EIEMU INTERN Inc filed Critical EIEMU INTERN Inc
Publication of JPS5723363A publication Critical patent/JPS5723363A/ja
Pending 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
    • G06T9/005—Statistical coding, e.g. Huffman, run length coding
    • 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

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)
  • Compression Of Band Width Or Redundancy In Fax (AREA)
  • Image Processing (AREA)
JP6677881A 1980-05-13 1981-05-01 Method and device for compressing expanding facsimile transmission system data Pending JPS5723363A (en)

Applications Claiming Priority (1)

Application Number Priority Date Filing Date Title
US06/149,362 US4360840A (en) 1980-05-13 1980-05-13 Real time data compression/decompression scheme for facsimile transmission system

Publications (1)

Publication Number Publication Date
JPS5723363A true JPS5723363A (en) 1982-02-06

Family

ID=22529946

Family Applications (1)

Application Number Title Priority Date Filing Date
JP6677881A Pending JPS5723363A (en) 1980-05-13 1981-05-01 Method and device for compressing expanding facsimile transmission system data

Country Status (3)

Country Link
US (1) US4360840A (ja)
EP (1) EP0040025A1 (ja)
JP (1) JPS5723363A (ja)

Cited By (5)

* Cited by examiner, † Cited by third party
Publication number Priority date Publication date Assignee Title
JPS59148467A (ja) * 1983-02-14 1984-08-25 Canon Inc デ−タ圧縮装置
JPS59156075A (ja) * 1983-02-25 1984-09-05 Canon Inc デ−タ復号装置
JPS59156073A (ja) * 1983-02-25 1984-09-05 Canon Inc デ−タ復号装置
JPS6072488A (ja) * 1983-09-29 1985-04-24 Fujitsu Ltd 復号化回路
JPH02146870A (ja) * 1989-07-19 1990-06-06 Hitachi Ltd フアクシミリ

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CA1192654A (en) * 1982-01-11 1985-08-27 Technicare Corporation Ultrasonic image storage device and method
US4499498A (en) * 1982-01-14 1985-02-12 Nippon Electric Co., Ltd. Run length decoding apparatus
JPH0828053B2 (ja) * 1983-08-08 1996-03-21 株式会社日立製作所 データ記録方法
US4574382A (en) * 1983-10-05 1986-03-04 International Business Machines Corporation Variable length character code system
US4695895A (en) * 1983-11-02 1987-09-22 Canon Kabushiki Kaisha Image processing system
US4956808A (en) * 1985-01-07 1990-09-11 International Business Machines Corporation Real time data transformation and transmission overlapping device
US4772955A (en) * 1985-01-31 1988-09-20 Canon Kabushiki Kaisha Data communication apparatus
US4694357A (en) * 1985-04-24 1987-09-15 Thomson-Csf Broadcast, Inc. Apparatus and method for video signal processing
FR2600223B1 (fr) * 1986-01-13 1988-08-19 Thomson Cgr Procede de formattage et de deformattage de donnees resultant du codage d'informations numeriques a l'aide d'un code a longueur variable, et dispositif de mise en oeuvre
US4760461A (en) * 1986-02-28 1988-07-26 Kabushiki Kaisha Toshiba Binary data compression and expansion processing apparatus
US4725885A (en) * 1986-12-22 1988-02-16 International Business Machines Corporation Adaptive graylevel image compression system
US5056113A (en) * 1988-09-22 1991-10-08 Megasoft Inc. Data communication system
US4965677A (en) * 1989-02-01 1990-10-23 International Business Machines Corporation Compression of binary halftones
JP2511158B2 (ja) * 1989-12-19 1996-06-26 シャープ株式会社 画像圧縮装置
US5237316A (en) * 1990-02-02 1993-08-17 Washington University Video display with high speed reconstruction and display of compressed images at increased pixel intensity range and retrofit kit for same
US5305111A (en) * 1990-12-11 1994-04-19 Industrial Technology Research Institute Run length encoding method and system
JPH0773286B2 (ja) * 1991-05-27 1995-08-02 メガソフト株式会社 データ伝送方法
US5293251A (en) * 1991-10-31 1994-03-08 Comsat Corporation Encoding/decoding system with two-stages of encoding/decoding
US5590221A (en) * 1994-03-30 1996-12-31 Newton; Dale C. Imaging method and system concatenating image data values to form an integer, and partitioning the integer
US5721720A (en) * 1994-12-28 1998-02-24 Kabushiki Kaisha Toshiba Optical recording medium recording pixel data as a compressed unit data block
US6009202A (en) * 1994-12-28 1999-12-28 Kabushiki Kaisha Toshiba Image information encoding/decoding system
JPH09307702A (ja) * 1996-05-17 1997-11-28 Brother Ind Ltd 原稿読み取り装置
US6009372A (en) * 1997-10-01 1999-12-28 Cummins Engine Company, Inc. Management of programming and memory space for an internal combustion engine control system
US6624761B2 (en) 1998-12-11 2003-09-23 Realtime Data, Llc Content independent data compression method and system
US6604158B1 (en) 1999-03-11 2003-08-05 Realtime Data, Llc System and methods for accelerated data storage and retrieval
US6601104B1 (en) 1999-03-11 2003-07-29 Realtime Data Llc System and methods for accelerated data storage and retrieval
US6728412B1 (en) * 1999-10-29 2004-04-27 S.V.V. Technology Innovations, Inc. Method and apparatus for on-the-fly image coding
US20010047473A1 (en) 2000-02-03 2001-11-29 Realtime Data, Llc Systems and methods for computer initialization
US6621428B1 (en) * 2000-05-04 2003-09-16 Hewlett-Packard Development Company, L.P. Entropy codec for fast data compression and decompression
US7417568B2 (en) 2000-10-03 2008-08-26 Realtime Data Llc System and method for data feed acceleration and encryption
US9143546B2 (en) 2000-10-03 2015-09-22 Realtime Data Llc System and method for data feed acceleration and encryption
US8692695B2 (en) 2000-10-03 2014-04-08 Realtime Data, Llc Methods for encoding and decoding data
US7386046B2 (en) 2001-02-13 2008-06-10 Realtime Data Llc Bandwidth sensitive data compression and decompression
US7477935B2 (en) * 2004-11-29 2009-01-13 Cameron Health, Inc. Method and apparatus for beat alignment and comparison
US8149469B2 (en) * 2007-08-03 2012-04-03 Canon Kabushiki Kaisha Image reading apparatus and image reading method
US8275065B2 (en) * 2008-08-01 2012-09-25 Xg Technology, Inc. System and method for power saving coding in integer cycle or impulse type modulation transmissions

Family Cites Families (9)

* Cited by examiner, † Cited by third party
Publication number Priority date Publication date Assignee Title
US3560639A (en) * 1966-10-03 1971-02-02 Xerox Corp Cascade run length encoding technique
US3849592A (en) * 1973-02-05 1974-11-19 Litton Systems Inc Graphic data redundancy reduction for text and half-tone optical facsimile system
NL172799C (nl) * 1973-04-17 1983-10-17 Ibm Nederland Stelsel voor het verwerken van informatie afkomstig van handgeschreven tekst.
SE406407B (sv) * 1975-11-25 1979-02-05 Hell Rudolf Dr Ing Gmbh Forfarande for digital loplengdkodning med redundansreduktion for overforande av binert kodade bildinformationer
JPS5826713B2 (ja) * 1976-06-28 1983-06-04 日本電信電話株式会社 ２値信号の逐次境界差分符号化伝送方式
US4136363A (en) * 1976-12-29 1979-01-23 Xerox Corporation Truncated run length encoding
US4191974A (en) * 1977-02-08 1980-03-04 Mitsubishi Denki Kabushiki Kaisha Facsimile encoding communication system
JPS53134340A (en) * 1977-04-28 1978-11-22 Ricoh Co Ltd Run length coding system
FR2430139A1 (fr) * 1978-06-28 1980-01-25 Labo Electronique Physique Dispositif de compression de signaux binaires et systeme de transmission codee de fac-similes equipe de ce dispositif

Cited By (9)

* Cited by examiner, † Cited by third party
Publication number Priority date Publication date Assignee Title
JPS59148467A (ja) * 1983-02-14 1984-08-25 Canon Inc デ−タ圧縮装置
JPH0523099B2 (ja) * 1983-02-14 1993-03-31 Canon Kk
JPS59156075A (ja) * 1983-02-25 1984-09-05 Canon Inc デ−タ復号装置
JPS59156073A (ja) * 1983-02-25 1984-09-05 Canon Inc デ−タ復号装置
JPH053187B2 (ja) * 1983-02-25 1993-01-14 Canon Kk
JPH053185B2 (ja) * 1983-02-25 1993-01-14 Canon Kk
JPS6072488A (ja) * 1983-09-29 1985-04-24 Fujitsu Ltd 復号化回路
JPH0242275B2 (ja) * 1983-09-29 1990-09-21
JPH02146870A (ja) * 1989-07-19 1990-06-06 Hitachi Ltd フアクシミリ

Also Published As

Publication number Publication date
US4360840A (en) 1982-11-23
EP0040025A1 (en) 1981-11-18

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