DE69024422T2 - Komprimierungsverfahren - Google Patents

Komprimierungsverfahren

Info

Publication number
DE69024422T2
DE69024422T2 DE69024422T DE69024422T DE69024422T2 DE 69024422 T2 DE69024422 T2 DE 69024422T2 DE 69024422 T DE69024422 T DE 69024422T DE 69024422 T DE69024422 T DE 69024422T DE 69024422 T2 DE69024422 T2 DE 69024422T2
Authority
DE
Germany
Prior art keywords
compression method
compression
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
DE69024422T
Other languages
English (en)
Other versions
DE69024422D1 (de
Inventor
Luigi Ronchetti
Mario Stroppiana
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.)
Alcatel Lucent Italia SpA
Original Assignee
Alcatel Italia SpA
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 Alcatel Italia SpA filed Critical Alcatel Italia SpA
Publication of DE69024422D1 publication Critical patent/DE69024422D1/de
Application granted granted Critical
Publication of DE69024422T2 publication Critical patent/DE69024422T2/de
Anticipated expiration legal-status Critical
Expired - Lifetime legal-status Critical Current

Links

Classifications

    • 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)
  • Theoretical Computer Science (AREA)
  • Multimedia (AREA)
  • Physics & Mathematics (AREA)
  • General Physics & Mathematics (AREA)
  • Compression, Expansion, Code Conversion, And Decoders (AREA)
DE69024422T 1989-06-07 1990-05-28 Komprimierungsverfahren Expired - Lifetime DE69024422T2 (de)

Applications Claiming Priority (1)

Application Number Priority Date Filing Date Title
IT8920809A IT1230234B (it) 1989-06-07 1989-06-07 Sistema di riduzione della informazione trasmessa nella codifica a lunghezza variabile di blocchi di dati numerici con codifica di valori e di lunghezze di stringhe.

Publications (2)

Publication Number Publication Date
DE69024422D1 DE69024422D1 (de) 1996-02-08
DE69024422T2 true DE69024422T2 (de) 1996-07-25

Family

ID=11172376

Family Applications (1)

Application Number Title Priority Date Filing Date
DE69024422T Expired - Lifetime DE69024422T2 (de) 1989-06-07 1990-05-28 Komprimierungsverfahren

Country Status (8)

Country Link
US (1) US5072302A (de)
EP (1) EP0411264B1 (de)
JP (1) JP2919559B2 (de)
DE (1) DE69024422T2 (de)
DK (1) DK0411264T3 (de)
ES (1) ES2080767T3 (de)
GR (1) GR3018545T3 (de)
IT (1) IT1230234B (de)

Families Citing this family (3)

* Cited by examiner, † Cited by third party
Publication number Priority date Publication date Assignee Title
US5453843A (en) * 1993-05-25 1995-09-26 National Semiconductor Corporation Method for fast data compression of half tone images with the use of pre-assigned codes
US5461422A (en) * 1994-05-23 1995-10-24 Industrial Technology Research Institute Quantizer with automatic pre-threshold
GB0217604D0 (en) * 2002-07-30 2002-09-11 Vodafone Ltd Data processing systems and methods

Family Cites Families (5)

* Cited by examiner, † Cited by third party
Publication number Priority date Publication date Assignee Title
US3502806A (en) * 1966-08-01 1970-03-24 Xerox Corp Modified run length data reduction system
US3510576A (en) * 1966-10-03 1970-05-05 Xerox Corp Data sampler circuit for determining information run lengths
US4135214A (en) * 1969-07-02 1979-01-16 Dacom, Inc. Method and apparatus for compressing facsimile transmission data
JPS5242017A (en) * 1975-09-29 1977-04-01 Fuji Xerox Co Ltd Run length code processing method for facsimile signal
US4698672A (en) * 1986-10-27 1987-10-06 Compression Labs, Inc. Coding system for reducing redundancy

Also Published As

Publication number Publication date
EP0411264A3 (en) 1991-10-30
JPH03113919A (ja) 1991-05-15
DE69024422D1 (de) 1996-02-08
GR3018545T3 (en) 1996-03-31
IT8920809A0 (it) 1989-06-07
ES2080767T3 (es) 1996-02-16
EP0411264B1 (de) 1995-12-27
JP2919559B2 (ja) 1999-07-12
US5072302A (en) 1991-12-10
DK0411264T3 (da) 1996-01-29
EP0411264A2 (de) 1991-02-06
IT1230234B (it) 1991-10-18

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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
8370 Indication of lapse of patent is to be deleted