BE785082A - Modulateur a impulsions codees differentielles - Google Patents

Modulateur a impulsions codees differentielles

Info

Publication number
BE785082A
BE785082A BE785082A BE785082A BE785082A BE 785082 A BE785082 A BE 785082A BE 785082 A BE785082 A BE 785082A BE 785082 A BE785082 A BE 785082A BE 785082 A BE785082 A BE 785082A
Authority
BE
Belgium
Prior art keywords
pulse modulator
coded pulse
differential coded
differential
modulator
Prior art date
Application number
BE785082A
Other languages
English (en)
Inventor
J H Condon
Original Assignee
Western Electric Co
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 filed Critical Western Electric Co
Publication of BE785082A publication Critical patent/BE785082A/fr

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
    • H03M3/02—Delta modulation, i.e. one-bit differential modulation
    • H03M3/022—Delta modulation, i.e. one-bit differential modulation with adaptable step size, e.g. adaptive delta modulation [ADM]
    • 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)
  • Analogue/Digital Conversion (AREA)
BE785082A 1971-06-21 1972-06-19 Modulateur a impulsions codees differentielles BE785082A (fr)

Applications Claiming Priority (1)

Application Number Priority Date Filing Date Title
US15499671A 1971-06-21 1971-06-21

Publications (1)

Publication Number Publication Date
BE785082A true BE785082A (fr) 1972-10-16

Family

ID=22553717

Family Applications (1)

Application Number Title Priority Date Filing Date
BE785082A BE785082A (fr) 1971-06-21 1972-06-19 Modulateur a impulsions codees differentielles

Country Status (10)

Country Link
US (1) US3723909A (fr)
AU (1) AU471829B2 (fr)
BE (1) BE785082A (fr)
CA (1) CA964766A (fr)
DE (1) DE2229398A1 (fr)
FR (1) FR2143002B1 (fr)
GB (1) GB1348470A (fr)
IT (1) IT960428B (fr)
NL (1) NL7208184A (fr)
SE (1) SE386553B (fr)

Families Citing this family (10)

* Cited by examiner, † Cited by third party
Publication number Priority date Publication date Assignee Title
FR2198686A5 (fr) * 1972-09-04 1974-03-29 Trt Telecom Radio Electr
JPS547525B2 (fr) * 1973-12-28 1979-04-07
US4039948A (en) * 1974-06-19 1977-08-02 Boxall Frank S Multi-channel differential pulse code modulation system
CA1068822A (fr) * 1974-06-24 1979-12-25 Ching-Long Song Convertisseur numerique-analogique pour systeme de communication
US3959745A (en) * 1975-06-24 1976-05-25 The United States Of America As Represented By The Secretary Of The Army Pulse amplitude modulator
DE3411962A1 (de) * 1983-03-31 1984-10-31 Sansui Electric Co., Ltd., Tokio/Tokyo Datenuebertragungseinrichtung
JPS61126836A (ja) * 1984-11-22 1986-06-14 Sansui Electric Co Ｐｃｍ伝送方式およびその装置
EP0399738A3 (fr) * 1989-05-26 1991-05-08 Gec-Marconi Limited Convertisseur analogique-numérique
US5124706A (en) * 1989-09-15 1992-06-23 Wavephore, Inc. Analog to digital and digital to analog signal processors
US5208595A (en) * 1991-08-21 1993-05-04 Wavephore, Inc. Digitally controlled adaptive slew rate delta modulator

Family Cites Families (6)

* Cited by examiner, † Cited by third party
Publication number Priority date Publication date Assignee Title
US3354267A (en) * 1965-01-13 1967-11-21 Bell Telephone Labor Inc Differential pcm system employing digital integration
US3452297A (en) * 1966-03-14 1969-06-24 Automatic Elect Lab Nonlinear pcm encoder having few analog-to-quantized signal comparisons with respect to the period of the pcm signal generated
US3497624A (en) * 1966-08-16 1970-02-24 Bell Telephone Labor Inc Continuously compounded delta modulation
US3526855A (en) * 1968-03-18 1970-09-01 Bell Telephone Labor Inc Pulse code modulation and differential pulse code modulation encoders
JPS4831139B1 (fr) * 1969-03-11 1973-09-27
US3628148A (en) * 1969-12-23 1971-12-14 Bell Telephone Labor Inc Adaptive delta modulation system

Also Published As

Publication number Publication date
NL7208184A (fr) 1972-12-27
CA964766A (en) 1975-03-18
FR2143002A1 (fr) 1973-02-02
IT960428B (it) 1973-11-20
DE2229398A1 (de) 1972-12-28
GB1348470A (en) 1974-03-20
SE386553B (sv) 1976-08-09
FR2143002B1 (fr) 1978-06-30
AU4346972A (en) 1973-12-20
AU471829B2 (en) 1973-12-20
US3723909A (en) 1973-03-27

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