FR2004130A1 - - Google Patents

Info

Publication number
FR2004130A1
FR2004130A1 FR6907536A FR6907536A FR2004130A1 FR 2004130 A1 FR2004130 A1 FR 2004130A1 FR 6907536 A FR6907536 A FR 6907536A FR 6907536 A FR6907536 A FR 6907536A FR 2004130 A1 FR2004130 A1 FR 2004130A1
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Withdrawn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
FR6907536A
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 FR2004130A1 publication Critical patent/FR2004130A1/fr
Withdrawn legal-status Critical Current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
    • H—ELECTRICITY
    • H03—ELECTRONIC CIRCUITRY
    • H03M—CODING; DECODING; CODE CONVERSION IN GENERAL
    • H03M5/00—Conversion of the form of the representation of individual digits
FR6907536A 1968-03-18 1969-03-17 Withdrawn FR2004130A1 (fr)

Applications Claiming Priority (1)

Application Number Priority Date Filing Date Title
US71389168A 1968-03-18 1968-03-18

Publications (1)

Publication Number Publication Date
FR2004130A1 true FR2004130A1 (fr) 1969-11-21

Family

ID=24867958

Family Applications (1)

Application Number Title Priority Date Filing Date
FR6907536A Withdrawn FR2004130A1 (fr) 1968-03-18 1969-03-17

Country Status (7)

Country Link
US (1) US3526855A (fr)
BE (1) BE729857A (fr)
DE (1) DE1912981B2 (fr)
FR (1) FR2004130A1 (fr)
GB (1) GB1196885A (fr)
NL (1) NL6904079A (fr)
SE (1) SE340295B (fr)

Cited By (1)

* Cited by examiner, † Cited by third party
Publication number Priority date Publication date Assignee Title
FR2428348A1 (fr) * 1978-06-08 1980-01-04 Trt Telecom Radio Electr Regulateur numerique du niveau d'un signal multiplex en frequence

Families Citing this family (11)

* Cited by examiner, † Cited by third party
Publication number Priority date Publication date Assignee Title
JPS513468B1 (fr) * 1970-10-28 1976-02-03
FR2115686A5 (fr) * 1970-11-30 1972-07-07 Labo Cent Telecommunicat
US3723909A (en) * 1971-06-21 1973-03-27 J Condon Differential pulse code modulation system employing periodic modulator step modification
DE2131083C3 (de) * 1971-06-23 1981-06-04 Licentia Patent-Verwaltungs-Gmbh, 6000 Frankfurt Nachrichtenübertragungssystem
US3763433A (en) * 1972-01-13 1973-10-02 Univ Iowa State Res Found Inc System and method for differential pulse code modulation of analog signals
US3772682A (en) * 1972-04-19 1973-11-13 Bell Telephone Labor Inc Digital conversion from one pcm format to another
NL7400764A (nl) * 1974-01-21 1975-07-23 Philips Nv Digitale inrichting voor het omzetten van ge- comprimeerde delta gemoduleerde signalen in pcm-signalen.
US3922619A (en) * 1974-01-28 1975-11-25 Bell Telephone Labor Inc Compressed differential pulse code modulator
US4035724A (en) * 1974-05-08 1977-07-12 Universite De Sherbrooke Digital converter from continuous variable slope delta modulation to pulse code modulation
US4039948A (en) * 1974-06-19 1977-08-02 Boxall Frank S Multi-channel differential pulse code modulation system
US6002352A (en) * 1997-06-24 1999-12-14 International Business Machines Corporation Method of sampling, downconverting, and digitizing a bandpass signal using a digital predictive coder

Family Cites Families (2)

* Cited by examiner, † Cited by third party
Publication number Priority date Publication date Assignee Title
US2605361A (en) * 1950-06-29 1952-07-29 Bell Telephone Labor Inc Differential quantization of communication signals
NL181666B (nl) * 1953-09-28 Degussa Inrichting voor het bereiden van ovenroet.

Cited By (1)

* Cited by examiner, † Cited by third party
Publication number Priority date Publication date Assignee Title
FR2428348A1 (fr) * 1978-06-08 1980-01-04 Trt Telecom Radio Electr Regulateur numerique du niveau d'un signal multiplex en frequence

Also Published As

Publication number Publication date
NL6904079A (fr) 1969-09-22
SE340295B (fr) 1971-11-15
DE1912981B2 (de) 1974-06-20
BE729857A (fr) 1969-08-18
DE1912981A1 (de) 1969-10-16
GB1196885A (en) 1970-07-01
US3526855A (en) 1970-09-01

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Legal Events

Date Code Title Description
ST Notification of lapse