FR2150949A1 - - Google Patents

Info

Publication number
FR2150949A1
FR2150949A1 FR7230691A FR7230691A FR2150949A1 FR 2150949 A1 FR2150949 A1 FR 2150949A1 FR 7230691 A FR7230691 A FR 7230691A FR 7230691 A FR7230691 A FR 7230691A FR 2150949 A1 FR2150949 A1 FR 2150949A1
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.)
Granted
Application number
FR7230691A
Other versions
FR2150949B1 (fr
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 FR2150949A1 publication Critical patent/FR2150949A1/fr
Application granted granted Critical
Publication of FR2150949B1 publication Critical patent/FR2150949B1/fr
Expired 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
    • H03M3/02—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]

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)
FR7230691A 1971-08-30 1972-08-29 Expired FR2150949B1 (fr)

Applications Claiming Priority (1)

Application Number Priority Date Filing Date Title
US17613171A 1971-08-30 1971-08-30

Publications (2)

Publication Number Publication Date
FR2150949A1 true FR2150949A1 (fr) 1973-04-13
FR2150949B1 FR2150949B1 (fr) 1980-03-14

Family

ID=22643104

Family Applications (1)

Application Number Title Priority Date Filing Date
FR7230691A Expired FR2150949B1 (fr) 1971-08-30 1972-08-29

Country Status (11)

Country Link
US (1) US3742138A (fr)
JP (1) JPS5529619B2 (fr)
AU (1) AU469797B2 (fr)
BE (1) BE788076A (fr)
CA (1) CA949217A (fr)
DE (1) DE2242271A1 (fr)
FR (1) FR2150949B1 (fr)
GB (1) GB1363017A (fr)
IT (1) IT965153B (fr)
NL (1) NL7211697A (fr)
SE (1) SE381542B (fr)

Families Citing this family (4)

* Cited by examiner, † Cited by third party
Publication number Priority date Publication date Assignee Title
BE793564A (fr) * 1971-12-30 1973-04-16 Western Electric Co Convertisseur analogique-numerique
NL7501341A (nl) * 1975-02-05 1976-08-09 Philips Nv Ontvanger voor de ontvangst van door pulscode- modulatie overgedragen signalen.
US3956700A (en) * 1975-04-18 1976-05-11 Bell Telephone Laboratories, Incorporated Two-feedback-path delta modulation system with circuits for reducing pulse width modulation
DE2932121C2 (de) * 1979-08-08 1982-09-30 TE KA DE Felten & Guilleaume Fernmeldeanlagen GmbH, 8500 Nürnberg Verfahren für adaptive δ-Modulation

Family Cites Families (6)

* Cited by examiner, † Cited by third party
Publication number Priority date Publication date Assignee Title
US3091664A (en) * 1961-04-24 1963-05-28 Gen Dynamics Corp Delta modulator for a time division multiplex system
US3631520A (en) * 1968-08-19 1971-12-28 Bell Telephone Labor Inc Predictive coding of speech signals
US3659288A (en) * 1969-06-23 1972-04-25 Vermont Technical Groups Inc Analog convertor and computer circuit producing optimized pulse output
US3628148A (en) * 1969-12-23 1971-12-14 Bell Telephone Labor Inc Adaptive delta modulation system
US3662266A (en) * 1970-05-18 1972-05-09 Bell Telephone Labor Inc Nonlinearly sampled differential quantizer for variable length encoding
US3633170A (en) * 1970-06-09 1972-01-04 Ibm Digital filter and threshold circuit

Also Published As

Publication number Publication date
US3742138A (en) 1973-06-26
SE381542B (sv) 1975-12-08
JPS5529619B2 (fr) 1980-08-05
AU469797B2 (en) 1976-02-26
CA949217A (en) 1974-06-11
IT965153B (it) 1974-01-31
DE2242271A1 (de) 1973-03-08
GB1363017A (en) 1974-08-14
JPS4833758A (fr) 1973-05-12
BE788076A (fr) 1972-12-18
NL7211697A (fr) 1973-03-02
FR2150949B1 (fr) 1980-03-14
AU4594872A (en) 1974-02-28

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Legal Events

Date Code Title Description
ST Notification of lapse