CA964370A - Differential pulse-code modulation - Google Patents

Differential pulse-code modulation

Info

Publication number
CA964370A
CA964370A CA151,900A CA151900A CA964370A CA 964370 A CA964370 A CA 964370A CA 151900 A CA151900 A CA 151900A CA 964370 A CA964370 A CA 964370A
Authority
CA
Canada
Prior art keywords
code modulation
differential pulse
differential
pulse
modulation
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
CA151,900A
Other languages
English (en)
Other versions
CA151900S (en
Inventor
David J. Meares
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.)
BAE Systems Electronics Ltd
Original Assignee
Marconi Co Ltd
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 Ltd filed Critical Marconi Co Ltd
Application granted granted Critical
Publication of CA964370A publication Critical patent/CA964370A/en
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
    • H03M7/3002—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)
  • Acyclic And Carbocyclic Compounds In Medicinal Compositions (AREA)
  • Organic Low-Molecular-Weight Compounds And Preparation Thereof (AREA)
  • Processing Of Color Television Signals (AREA)
  • Color Television Systems (AREA)
  • Compression, Expansion, Code Conversion, And Decoders (AREA)
CA151,900A 1971-09-24 1972-09-18 Differential pulse-code modulation Expired CA964370A (en)

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 (1)

Publication Number Publication Date
CA964370A true CA964370A (en) 1975-03-11

Family

ID=10434543

Family Applications (1)

Application Number Title Priority Date Filing Date
CA151,900A Expired CA964370A (en) 1971-09-24 1972-09-18 Differential pulse-code modulation

Country Status (11)

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

Cited By (1)

* Cited by examiner, † Cited by third party
Publication number Priority date Publication date Assignee Title
US4622579A (en) * 1983-05-10 1986-11-11 Siemens Aktiengesellschaft Method and apparatus for transmitting digital luminance and chrominance television signals

Families Citing this family (9)

* 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
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

Cited By (1)

* Cited by examiner, † Cited by third party
Publication number Priority date Publication date Assignee Title
US4622579A (en) * 1983-05-10 1986-11-11 Siemens Aktiengesellschaft Method and apparatus for transmitting digital luminance and chrominance television signals

Also Published As

Publication number Publication date
AU4682472A (en) 1974-03-28
NL7212801A (it) 1973-03-27
SE391265B (sv) 1977-02-07
GB1357165A (en) 1974-06-19
CH584482A5 (it) 1977-01-31
DK132779C (da) 1976-07-05
DK132779B (da) 1976-02-02
DE2246507A1 (de) 1973-03-29
IT967767B (it) 1974-03-11
US3800225A (en) 1974-03-26
NO134928C (it) 1977-01-05
NO134928B (it) 1976-09-27
AU464144B2 (en) 1975-08-14

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