FR2166220A1 - - Google Patents

Info

Publication number
FR2166220A1
FR2166220A1 FR7247074A FR7247074A FR2166220A1 FR 2166220 A1 FR2166220 A1 FR 2166220A1 FR 7247074 A FR7247074 A FR 7247074A FR 7247074 A FR7247074 A FR 7247074A FR 2166220 A1 FR2166220 A1 FR 2166220A1
Authority
FR
France
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.)
Withdrawn
Application number
FR7247074A
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 FR2166220A1 publication Critical patent/FR2166220A1/fr
Withdrawn legal-status Critical Current

Links

Classifications

    • H—ELECTRICITY
    • H03—ELECTRONIC CIRCUITRY
    • H03M—CODING; DECODING; CODE CONVERSION IN GENERAL
    • H03M3/00—Conversion of analogue values to or from differential modulation
    • H03M3/04—Differential modulation with several bits, e.g. differential pulse code modulation [DPCM]
    • H03M3/042—Differential modulation with several bits, e.g. differential pulse code modulation [DPCM] with adaptable step size, e.g. adaptive differential pulse code modulation [ADPCM]

Landscapes

  • Engineering & Computer Science (AREA)
  • Theoretical Computer Science (AREA)
  • Compression, Expansion, Code Conversion, And Decoders (AREA)
  • Transmission Systems Not Characterized By The Medium Used For Transmission (AREA)
  • Analogue/Digital Conversion (AREA)
FR7247074A 1971-12-30 1972-12-29 Withdrawn FR2166220A1 (fr)

Applications Claiming Priority (1)

Application Number Priority Date Filing Date Title
US21405171A 1971-12-30 1971-12-30

Publications (1)

Publication Number Publication Date
FR2166220A1 true FR2166220A1 (fr) 1973-08-10

Family

ID=22797582

Family Applications (1)

Application Number Title Priority Date Filing Date
FR7247074A Withdrawn FR2166220A1 (fr) 1971-12-30 1972-12-29

Country Status (10)

Country Link
US (1) US3745562A (fr)
JP (1) JPS5639577B2 (fr)
BE (1) BE793564A (fr)
CA (1) CA991311A (fr)
DE (1) DE2263757C2 (fr)
FR (1) FR2166220A1 (fr)
GB (1) GB1370710A (fr)
IT (1) IT976174B (fr)
NL (1) NL7217828A (fr)
SE (1) SE387796B (fr)

Cited By (1)

* Cited by examiner, † Cited by third party
Publication number Priority date Publication date Assignee Title
FR2463549A1 (fr) * 1979-08-10 1981-02-20 Telecommunications Sa Dispositif de reduction du debit numerique d'informations codees

Families Citing this family (11)

* Cited by examiner, † Cited by third party
Publication number Priority date Publication date Assignee Title
US4123750A (en) * 1973-11-29 1978-10-31 Dynamics Research Corporation Signal processor for position encoder
FR2312884A1 (fr) * 1975-05-27 1976-12-24 Ibm France Procede de quantification par blocs d'echantillons d'un signal electrique, et dispositif de mise en oeuvre dudit procede
US4059800A (en) * 1976-06-30 1977-11-22 International Business Machines Corporation Digital multi-line companded delta modulator
JPS5952576B2 (ja) * 1979-07-13 1984-12-20 株式会社東芝 Ａ／ｄ変換器の安定化回路
FR2492612A1 (fr) * 1980-10-16 1982-04-23 Mecilec Sa Procede et dispositif de conversion analogique numerique incrementale
US4700362A (en) * 1983-10-07 1987-10-13 Dolby Laboratories Licensing Corporation A-D encoder and D-A decoder system
US5150120A (en) * 1991-01-03 1992-09-22 Harris Corp. Multiplexed sigma-delta A/D converter
JP3749752B2 (ja) * 1995-03-24 2006-03-01 アイティーティー・マニュファクチャリング・エンタープライジズ・インコーポレーテッド ブロック適応型差分パルスコード変調システム
GB9509831D0 (en) * 1995-05-15 1995-07-05 Gerzon Michael A Lossless coding method for waveform data
GB0113627D0 (en) * 2001-06-05 2001-07-25 Univ Stirling Controller and method of controlling an apparatus
EP3331164B1 (fr) 2015-08-27 2021-02-17 Osaka University Oscillateur de fluctuation, dispositif de détection de signal, et dispositif d'affichage

Family Cites Families (5)

* Cited by examiner, † Cited by third party
Publication number Priority date Publication date Assignee Title
US2927962A (en) * 1954-04-26 1960-03-08 Bell Telephone Labor Inc Transmission systems employing quantization
US3631520A (en) * 1968-08-19 1971-12-28 Bell Telephone Labor Inc Predictive coding of speech signals
US3628148A (en) * 1969-12-23 1971-12-14 Bell Telephone Labor Inc Adaptive delta modulation system
US3621396A (en) * 1970-05-08 1971-11-16 Bell Telephone Labor Inc Delta modulation information transmission system
US3742138A (en) * 1971-08-30 1973-06-26 Bell Telephone Labor Inc Predictive delayed encoders

Cited By (2)

* Cited by examiner, † Cited by third party
Publication number Priority date Publication date Assignee Title
FR2463549A1 (fr) * 1979-08-10 1981-02-20 Telecommunications Sa Dispositif de reduction du debit numerique d'informations codees
EP0024243A1 (fr) * 1979-08-10 1981-02-25 Societe Anonyme De Telecommunications (S.A.T.) Dispositif pour réduire le débit numérique d'un signal MIC

Also Published As

Publication number Publication date
DE2263757A1 (de) 1973-07-05
IT976174B (it) 1974-08-20
SE387796B (sv) 1976-09-13
CA991311A (en) 1976-06-15
GB1370710A (en) 1974-10-16
US3745562A (en) 1973-07-10
DE2263757C2 (de) 1982-11-18
JPS4875161A (fr) 1973-10-09
NL7217828A (fr) 1973-07-03
BE793564A (fr) 1973-04-16
JPS5639577B2 (fr) 1981-09-14

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Legal Events

Date Code Title Description
ST Notification of lapse