FR2258747A1 - - Google Patents

Info

Publication number
FR2258747A1
FR2258747A1 FR7501789A FR7501789A FR2258747A1 FR 2258747 A1 FR2258747 A1 FR 2258747A1 FR 7501789 A FR7501789 A FR 7501789A FR 7501789 A FR7501789 A FR 7501789A FR 2258747 A1 FR2258747 A1 FR 2258747A1
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
FR7501789A
Other versions
FR2258747B1 (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.)
Koninklijke Philips NV
Original Assignee
Philips Gloeilampenfabrieken NV
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 Philips Gloeilampenfabrieken NV filed Critical Philips Gloeilampenfabrieken NV
Publication of FR2258747A1 publication Critical patent/FR2258747A1/fr
Application granted granted Critical
Publication of FR2258747B1 publication Critical patent/FR2258747B1/fr
Expired 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
    • H03M7/3048—Conversion to or from one-bit differential modulation only, e.g. delta modulation [DM]
    • H03M7/3051—Conversion to or from one-bit differential modulation only, e.g. delta modulation [DM] adaptive, 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)
  • Signal Processing For Digital Recording And Reproducing (AREA)
FR7501789A 1974-01-21 1975-01-21 Expired FR2258747B1 (fr)

Applications Claiming Priority (1)

Application Number Priority Date Filing Date Title
NL7400764A NL7400764A (nl) 1974-01-21 1974-01-21 Digitale inrichting voor het omzetten van ge- comprimeerde delta gemoduleerde signalen in pcm-signalen.

Publications (2)

Publication Number Publication Date
FR2258747A1 true FR2258747A1 (fr) 1975-08-18
FR2258747B1 FR2258747B1 (fr) 1978-07-21

Family

ID=19820591

Family Applications (1)

Application Number Title Priority Date Filing Date
FR7501789A Expired FR2258747B1 (fr) 1974-01-21 1975-01-21

Country Status (9)

Country Link
US (1) US4002981A (fr)
JP (1) JPS5429233B2 (fr)
BE (1) BE824571A (fr)
CA (1) CA1022681A (fr)
DE (1) DE2501531C3 (fr)
FR (1) FR2258747B1 (fr)
GB (1) GB1480434A (fr)
NL (1) NL7400764A (fr)
SE (1) SE400868B (fr)

Cited By (1)

* Cited by examiner, † Cited by third party
Publication number Priority date Publication date Assignee Title
FR2414831A1 (fr) * 1978-01-13 1979-08-10 Philips Nv Dispositif servant a filtrer des signaux modules par impulsions codees comprimes

Families Citing this family (11)

* Cited by examiner, † Cited by third party
Publication number Priority date Publication date Assignee Title
NL7506141A (nl) * 1975-05-26 1976-11-30 Philips Nv Digitaal filter.
GB1588219A (en) * 1977-02-07 1981-04-15 Post Office Conversion of analogue signals to digital signals
NL7708150A (nl) * 1977-07-22 1979-01-24 Philips Nv Integrerende kode-omzetter.
FR2399763A1 (fr) * 1977-08-03 1979-03-02 Trt Telecom Radio Electr Dispositif numerique pour diviser la frequence d'echantillonnage dans un signal code au moyen de la modulation delta
NL7801909A (nl) * 1978-02-21 1979-08-23 Philips Nv Inrichting voor het decoderen van een met adap- tieve deltamodulatie gecodeerd signaal.
US4281318A (en) * 1980-05-30 1981-07-28 Bell Telephone Laboratories, Incorporated Digital-to-digital code converter
JPS58219841A (ja) * 1982-06-15 1983-12-21 Kokusai Denshin Denwa Co Ltd <Kdd> 標本化周波数の高速変換回路
GB2133238A (en) * 1982-12-10 1984-07-18 Marconi Co Ltd Coder/decoder arrangements
CA1271995A (fr) * 1984-07-05 1990-07-24 Nec Corporation Methode et dispositif de surechantillonage pour convertir un signal analogique en signal numerique
US4755794A (en) * 1987-07-23 1988-07-05 American Telephone And Telegraph Company, At&T Bell Laboratories Digital-to-digital code converter
US4905002A (en) * 1988-03-09 1990-02-27 Eastman Kodak Company Delta modulation encoder/decoder method and system

Family Cites Families (8)

* Cited by examiner, † Cited by third party
Publication number Priority date Publication date Assignee Title
US3526855A (en) * 1968-03-18 1970-09-01 Bell Telephone Labor Inc Pulse code modulation and differential pulse code modulation encoders
NL159548B (nl) * 1968-03-21 1979-02-15 Philips Nv Overdrachtsstelsel voor signaaloverdracht door pulscodemodulatie, alsmede zender en ontvanger voor toepassing in een dergelijk stelsel.
US3596267A (en) * 1969-01-28 1971-07-27 Bell Telephone Labor Inc Digital code converter for converting a delta modulation code to a different permutation code
US3707712A (en) * 1970-06-10 1972-12-26 Univ Sherbrooke Converter from delta modulation to pulse code modulation
US3703688A (en) * 1971-04-07 1972-11-21 Bell Telephone Labor Inc Digital adaptive-to-linear delta modulated signal converter
US3691554A (en) * 1971-06-18 1972-09-12 Peter Marschall Code converters
US3772682A (en) * 1972-04-19 1973-11-13 Bell Telephone Labor Inc Digital conversion from one pcm format to another
US3766546A (en) * 1972-04-21 1973-10-16 Bell Telephone Labor Inc Converter for segment companded pcm codes

Cited By (1)

* Cited by examiner, † Cited by third party
Publication number Priority date Publication date Assignee Title
FR2414831A1 (fr) * 1978-01-13 1979-08-10 Philips Nv Dispositif servant a filtrer des signaux modules par impulsions codees comprimes

Also Published As

Publication number Publication date
BE824571A (fr) 1975-07-22
SE400868B (sv) 1978-04-10
US4002981A (en) 1977-01-11
JPS5429233B2 (fr) 1979-09-21
NL7400764A (nl) 1975-07-23
CA1022681A (fr) 1977-12-13
AU7737675A (en) 1976-07-22
DE2501531C3 (de) 1981-09-17
DE2501531B2 (de) 1980-12-11
FR2258747B1 (fr) 1978-07-21
GB1480434A (en) 1977-07-20
SE7500483L (fr) 1975-07-22
JPS50105060A (fr) 1975-08-19
DE2501531A1 (de) 1975-07-24

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Legal Events

Date Code Title Description
ST Notification of lapse
ST Notification of lapse