DK132779C - Fremgangsmade til kodning og afkodning ved differential impulskodemodulation samt koderkreds og afkoderkreds til udovelse af denne fremgangsmade - Google Patents

Fremgangsmade til kodning og afkodning ved differential impulskodemodulation samt koderkreds og afkoderkreds til udovelse af denne fremgangsmade

Info

Publication number
DK132779C
DK132779C DK469672A DK469672A DK132779C DK 132779 C DK132779 C DK 132779C DK 469672 A DK469672 A DK 469672A DK 469672 A DK469672 A DK 469672A DK 132779 C DK132779 C DK 132779C
Authority
DK
Denmark
Prior art keywords
procedure
circuit
coding
pulse code
code modulation
Prior art date
Application number
DK469672A
Other languages
English (en)
Other versions
DK132779B (da
Inventor
D J Meares
Original Assignee
Marconi Co Ldt
Standard Telephones & Cabeles
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 Marconi Co Ldt, Standard Telephones & Cabeles filed Critical Marconi Co Ldt
Publication of DK132779B publication Critical patent/DK132779B/da
Application granted granted Critical
Publication of DK132779C publication Critical patent/DK132779C/da

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
    • H03M7/3002—Conversion to or from differential modulation
    • H03M7/3044—Conversion to or from differential modulation with several bits only, i.e. the difference between successive samples being coded by more than one bit, e.g. differential pulse code modulation [DPCM]
    • H—ELECTRICITY
    • H04—ELECTRIC COMMUNICATION TECHNIQUE
    • H04N—PICTORIAL COMMUNICATION, e.g. TELEVISION
    • H04N11/00—Colour television systems
    • H04N11/04—Colour television systems using pulse code modulation
    • H04N11/042—Codec means
    • H04N11/046—DPCM

Landscapes

  • Engineering & Computer Science (AREA)
  • Theoretical Computer Science (AREA)
  • Multimedia (AREA)
  • Signal Processing (AREA)
  • Color Television Systems (AREA)
  • Compression, Expansion, Code Conversion, And Decoders (AREA)
  • Acyclic And Carbocyclic Compounds In Medicinal Compositions (AREA)
  • Organic Low-Molecular-Weight Compounds And Preparation Thereof (AREA)
  • Processing Of Color Television Signals (AREA)
DK469672A 1971-09-24 1972-09-22 Fremgangsmade til kodning og afkodning ved differential impulskodemodulation samt koderkreds og afkoderkreds til udovelse af denne fremgangsmade DK132779C (da)

Applications Claiming Priority (1)

Application Number Priority Date Filing Date Title
GB4473771A GB1357165A (en) 1971-09-24 1971-09-24 Differential pulse-code modulation

Publications (2)

Publication Number Publication Date
DK132779B DK132779B (da) 1976-02-02
DK132779C true DK132779C (da) 1976-07-05

Family

ID=10434543

Family Applications (1)

Application Number Title Priority Date Filing Date
DK469672A DK132779C (da) 1971-09-24 1972-09-22 Fremgangsmade til kodning og afkodning ved differential impulskodemodulation samt koderkreds og afkoderkreds til udovelse af denne fremgangsmade

Country Status (11)

Country Link
US (1) US3800225A (da)
AU (1) AU464144B2 (da)
CA (1) CA964370A (da)
CH (1) CH584482A5 (da)
DE (1) DE2246507A1 (da)
DK (1) DK132779C (da)
GB (1) GB1357165A (da)
IT (1) IT967767B (da)
NL (1) NL7212801A (da)
NO (1) NO134928C (da)
SE (1) SE391265B (da)

Families Citing this family (10)

* Cited by examiner, † Cited by third party
Publication number Priority date Publication date Assignee Title
GB1344312A (en) * 1971-08-27 1974-01-23 Post Office Digital encoding system
US4039948A (en) * 1974-06-19 1977-08-02 Boxall Frank S Multi-channel differential pulse code modulation system
GB1520634A (en) * 1974-08-23 1978-08-09 Post Office Digital encoding system
US3946432A (en) * 1974-10-10 1976-03-23 Cbs Inc. Apparatus for digitally encoding a television signal
US3941924A (en) * 1974-11-25 1976-03-02 Northrop Corporation Simplified multi-channel data sensor system
NL174611C (nl) * 1975-06-12 1984-07-02 Philips Nv Differentieel pulscodemodulatie overdrachtstelsel.
US3991269A (en) * 1975-09-18 1976-11-09 Bell Telephone Laboratories, Incorporated Digital coding without additional bits to provide sign information
JPS5915530B2 (ja) * 1978-02-21 1984-04-10 大日本スクリ−ン製造株式会社 アナログ信号のサンプリング方法
DE3317115A1 (de) * 1983-05-10 1984-11-15 Siemens AG, 1000 Berlin und 8000 München Verfahren zur uebertragung von digitalen luminanz- und chrominanzsignalen des fernsehens
WO2012081784A1 (ko) * 2010-12-13 2012-06-21 한국철도기술연구원 차량 내 감시장치의 검지데이터에 대한 데이터 축소 방법 및 그 방법에 의한 차량의 준실시간 결함 감시 방법

Family Cites Families (5)

* Cited by examiner, † Cited by third party
Publication number Priority date Publication date Assignee Title
US2724740A (en) * 1950-06-29 1955-11-22 Bell Telephone Labor Inc Quantized transmission with variable quanta
US2927962A (en) * 1954-04-26 1960-03-08 Bell Telephone Labor Inc Transmission systems employing quantization
US3354267A (en) * 1965-01-13 1967-11-21 Bell Telephone Labor Inc Differential pcm system employing digital integration
NL141055B (nl) * 1965-03-20 1974-01-15 Philips Nv Code-omzetter voor het omzetten van een tweewaardige pulsreeks in een driewaardige pulsreeks.
US3707680A (en) * 1970-05-20 1972-12-26 Communications Satellite Corp Digital differential pulse code modulation system

Also Published As

Publication number Publication date
NO134928B (da) 1976-09-27
DE2246507A1 (de) 1973-03-29
DK132779B (da) 1976-02-02
US3800225A (en) 1974-03-26
IT967767B (it) 1974-03-11
CH584482A5 (da) 1977-01-31
SE391265B (sv) 1977-02-07
AU4682472A (en) 1974-03-28
GB1357165A (en) 1974-06-19
NO134928C (da) 1977-01-05
CA964370A (en) 1975-03-11
NL7212801A (da) 1973-03-27
AU464144B2 (en) 1975-08-14

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