CH557621A - Traducteur permettant l'echange d'informations entre un reseau de telecommunications en modulation par impulsions codees et un reseau en modulation differentielle. - Google Patents

Traducteur permettant l'echange d'informations entre un reseau de telecommunications en modulation par impulsions codees et un reseau en modulation differentielle.

Info

Publication number
CH557621A
CH557621A CH1721871A CH1721871A CH557621A CH 557621 A CH557621 A CH 557621A CH 1721871 A CH1721871 A CH 1721871A CH 1721871 A CH1721871 A CH 1721871A CH 557621 A CH557621 A CH 557621A
Authority
CH
Switzerland
Prior art keywords
modulation
network
translator
exchange
allowing
Prior art date
Application number
CH1721871A
Other languages
English (en)
Original Assignee
Int Standard Electric Corp
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 Int Standard Electric Corp filed Critical Int Standard Electric Corp
Publication of CH557621A publication Critical patent/CH557621A/fr

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
    • H03M7/3048—Conversion to or from one-bit differential modulation only, e.g. delta modulation [DM]

Landscapes

  • Engineering & Computer Science (AREA)
  • Theoretical Computer Science (AREA)
  • Time-Division Multiplex Systems (AREA)
  • Synchronisation In Digital Transmission Systems (AREA)
  • Compression, Expansion, Code Conversion, And Decoders (AREA)
CH1721871A 1970-11-30 1971-11-26 Traducteur permettant l'echange d'informations entre un reseau de telecommunications en modulation par impulsions codees et un reseau en modulation differentielle. CH557621A (fr)

Applications Claiming Priority (1)

Application Number Priority Date Filing Date Title
FR7042943A FR2115686A5 (fr) 1970-11-30 1970-11-30

Publications (1)

Publication Number Publication Date
CH557621A true CH557621A (fr) 1974-12-31

Family

ID=9064919

Family Applications (1)

Application Number Title Priority Date Filing Date
CH1721871A CH557621A (fr) 1970-11-30 1971-11-26 Traducteur permettant l'echange d'informations entre un reseau de telecommunications en modulation par impulsions codees et un reseau en modulation differentielle.

Country Status (7)

Country Link
US (1) US3750144A (fr)
BE (1) BE775993A (fr)
CA (1) CA961578A (fr)
CH (1) CH557621A (fr)
DE (1) DE2158549A1 (fr)
FR (1) FR2115686A5 (fr)
GB (1) GB1321346A (fr)

Families Citing this family (9)

* Cited by examiner, † Cited by third party
Publication number Priority date Publication date Assignee Title
US3916107A (en) * 1972-10-06 1975-10-28 Bell Telephone Labor Inc Digital system for reclocking pulse code modulation circuits
DE2264179C3 (de) * 1972-12-29 1975-10-09 Siemens Ag, 1000 Berlin Und 8000 Muenchen Digitales Zeitmultiptexvermittlungsverfahren für Pulscodemodulation und Pulsdeltamodulation
US4035724A (en) * 1974-05-08 1977-07-12 Universite De Sherbrooke Digital converter from continuous variable slope delta modulation to pulse code modulation
CA1068822A (fr) * 1974-06-24 1979-12-25 Ching-Long Song Convertisseur numerique-analogique pour systeme de communication
US3937897A (en) * 1974-07-25 1976-02-10 North Electric Company Signal coding for telephone communication system
US4044306A (en) * 1974-07-26 1977-08-23 Universite De Snerbrooke Digital converter from pulse code modulation to continuous variable slope delta modulation
US4057797A (en) * 1975-12-03 1977-11-08 Stromberg-Carlson Corporation All digital delta to PCM converter
US4128832A (en) * 1976-01-08 1978-12-05 Ncr Corporation Combined encoder/decoder
US4924480A (en) * 1988-03-11 1990-05-08 American Telephone And Telegraph Company Codecs with suppression of multiple encoding/decodings across a connection

Family Cites Families (4)

* Cited by examiner, † Cited by third party
Publication number Priority date Publication date Assignee Title
NL300482A (fr) * 1962-11-13
US3588364A (en) * 1967-06-19 1971-06-28 Nat Defense Canada Adaptive encoder and decoder
US3526855A (en) * 1968-03-18 1970-09-01 Bell Telephone Labor Inc Pulse code modulation and differential pulse code modulation encoders
BE758268A (fr) * 1969-11-04 1971-04-01 Ibm Procede et systeme de codage comprime de quantites sous forme digitale

Also Published As

Publication number Publication date
BE775993A (fr) 1972-05-30
FR2115686A5 (fr) 1972-07-07
GB1321346A (en) 1973-06-27
AU3303671A (en) 1973-03-08
CA961578A (en) 1975-01-21
DE2158549A1 (de) 1972-05-31
US3750144A (en) 1973-07-31

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Legal Events

Date Code Title Description
PL Patent ceased