DE2204766C2 - Codeumsetzer für Datenverarbeitungssysteme - Google Patents

Codeumsetzer für Datenverarbeitungssysteme

Info

Publication number
DE2204766C2
DE2204766C2 DE2204766A DE2204766A DE2204766C2 DE 2204766 C2 DE2204766 C2 DE 2204766C2 DE 2204766 A DE2204766 A DE 2204766A DE 2204766 A DE2204766 A DE 2204766A DE 2204766 C2 DE2204766 C2 DE 2204766C2
Authority
DE
Germany
Prior art keywords
code
signals
synchronization
codes
circuit
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
DE2204766A
Other languages
German (de)
English (en)
Other versions
DE2204766A1 (de
Inventor
Peter Gabriel Rye N.Y. Neumann
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.)
AT&T Corp
Original Assignee
Western Electric Co 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 Western Electric Co Inc filed Critical Western Electric Co Inc
Publication of DE2204766A1 publication Critical patent/DE2204766A1/de
Application granted granted Critical
Publication of DE2204766C2 publication Critical patent/DE2204766C2/de
Expired 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
    • H03M7/40—Conversion to or from variable length codes, e.g. Shannon-Fano code, Huffman code, Morse code
    • 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
    • H03M7/40—Conversion to or from variable length codes, e.g. Shannon-Fano code, Huffman code, Morse code
    • H03M7/4025—Conversion to or from variable length codes, e.g. Shannon-Fano code, Huffman code, Morse code constant length to or from Morse code conversion
    • 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
    • H03M7/40—Conversion to or from variable length codes, e.g. Shannon-Fano code, Huffman code, Morse code
    • H03M7/42—Conversion to or from variable length codes, e.g. Shannon-Fano code, Huffman code, Morse code using table look-up for the coding or decoding process, e.g. using read-only memory

Landscapes

  • Engineering & Computer Science (AREA)
  • Theoretical Computer Science (AREA)
  • Compression, Expansion, Code Conversion, And Decoders (AREA)
DE2204766A 1971-02-09 1972-02-02 Codeumsetzer für Datenverarbeitungssysteme Expired DE2204766C2 (de)

Applications Claiming Priority (1)

Application Number Priority Date Filing Date Title
US11390571A 1971-02-09 1971-02-09

Publications (2)

Publication Number Publication Date
DE2204766A1 DE2204766A1 (de) 1972-08-17
DE2204766C2 true DE2204766C2 (de) 1982-11-11

Family

ID=22352234

Family Applications (1)

Application Number Title Priority Date Filing Date
DE2204766A Expired DE2204766C2 (de) 1971-02-09 1972-02-02 Codeumsetzer für Datenverarbeitungssysteme

Country Status (6)

Country Link
US (1) US3716851A (enExample)
JP (1) JPS5517972B1 (enExample)
CA (1) CA948317A (enExample)
DE (1) DE2204766C2 (enExample)
FR (1) FR2124562B1 (enExample)
GB (1) GB1380167A (enExample)

Families Citing this family (24)

* Cited by examiner, † Cited by third party
Publication number Priority date Publication date Assignee Title
US3835467A (en) * 1972-11-10 1974-09-10 Ibm Minimal redundancy decoding method and means
US3906485A (en) * 1973-06-13 1975-09-16 Ibm Data coding circuits for encoded waveform with constrained charge accumulation
DE2508706C2 (de) * 1974-05-02 1984-10-11 International Business Machines Corp., Armonk, N.Y. Schaltungsanordnung zur Codierung von Datenbitfolgen
AT351610B (de) * 1975-11-14 1979-08-10 Siemens Ag Schaltungsanordnung zur empfangsseitigen regelung der phase eines taktsignals bei einer datenuebertragung mit teilinformationsimpulsen
US4152697A (en) * 1976-08-11 1979-05-01 Xerox Corporation Parallel run-length decoder
US4177455A (en) * 1978-01-09 1979-12-04 Ncr Corporation Electrically configurable high-low decoder
US4414536A (en) * 1980-07-25 1983-11-08 Tokyo Shibaura Denki Kabushiki Kaisha Data compressing system
US4670890A (en) * 1983-03-04 1987-06-02 Research Corporation Method of and/or apparatus for encoding and decoding sequential information in data handling systems
US5184125A (en) * 1989-06-28 1993-02-02 Digital Equipment Corporation Data encoding and demodulation system
FR2653954A1 (fr) * 1989-10-27 1991-05-03 Trt Telecom Radio Electr Procede pour transmettre une suite de m mots binaires de "p" elements binaires et dispositif de transmission mettant en óoeuvre ce procede.
US5034741A (en) * 1990-03-22 1991-07-23 United Technologies Corporation Variable length bit patterns for data representation
US5351047A (en) * 1992-09-21 1994-09-27 Laboratory Automation, Inc. Data decoding method and apparatus
US6609189B1 (en) * 1998-03-12 2003-08-19 Yale University Cycle segmented prefix circuits
US7263127B1 (en) 1998-04-02 2007-08-28 Intel Corporation Method and apparatus for simplifying frame-based motion estimation
US6904174B1 (en) * 1998-12-11 2005-06-07 Intel Corporation Simplified predictive video encoder
US7274671B2 (en) * 2001-02-09 2007-09-25 Boly Media Communications, Inc. Bitwise adaptive encoding using prefix prediction
US6864812B1 (en) * 2004-02-05 2005-03-08 Broadcom Corporation Hardware efficient implementation of finite impulse response filters with limited range input signals
US8233535B2 (en) * 2005-11-18 2012-07-31 Apple Inc. Region-based processing of predicted pixels
US8780997B2 (en) 2005-11-18 2014-07-15 Apple Inc. Regulation of decode-side processing based on perceptual masking
US20070116117A1 (en) * 2005-11-18 2007-05-24 Apple Computer, Inc. Controlling buffer states in video compression coding to enable editing and distributed encoding
US8031777B2 (en) 2005-11-18 2011-10-04 Apple Inc. Multipass video encoding and rate control using subsampling of frames
US8295343B2 (en) * 2005-11-18 2012-10-23 Apple Inc. Video bit rate control method
CN101461005B (zh) * 2006-06-12 2012-05-30 汤姆森许可贸易公司 通过数据调制规则变化将第二码嵌入光盘数据的方法和装置
EP2182513B1 (en) * 2008-11-04 2013-03-20 Lg Electronics Inc. An apparatus for processing an audio signal and method thereof

Family Cites Families (4)

* Cited by examiner, † Cited by third party
Publication number Priority date Publication date Assignee Title
US3016527A (en) * 1958-09-04 1962-01-09 Bell Telephone Labor Inc Apparatus for utilizing variable length alphabetized codes
US3051940A (en) * 1958-09-04 1962-08-28 Bell Telephone Labor Inc Variable length code group circuits
US3185824A (en) * 1961-10-24 1965-05-25 Ibm Adaptive data compactor
DE1162399B (de) * 1961-10-24 1964-02-06 Ibm Verdichter fuer Daten, deren statistische Verteilung sehr stark schwankt

Also Published As

Publication number Publication date
DE2204766A1 (de) 1972-08-17
GB1380167A (en) 1975-01-08
FR2124562B1 (enExample) 1974-12-13
US3716851A (en) 1973-02-13
CA948317A (en) 1974-05-28
FR2124562A1 (enExample) 1972-09-22
JPS5517972B1 (enExample) 1980-05-15

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Legal Events

Date Code Title Description
OD Request for examination
D2 Grant after examination
8339 Ceased/non-payment of the annual fee