FR2231158A1 - - Google Patents

Info

Publication number
FR2231158A1
FR2231158A1 FR7417842A FR7417842A FR2231158A1 FR 2231158 A1 FR2231158 A1 FR 2231158A1 FR 7417842 A FR7417842 A FR 7417842A FR 7417842 A FR7417842 A FR 7417842A FR 2231158 A1 FR2231158 A1 FR 2231158A1
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
FR7417842A
Other versions
FR2231158B1 (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 FR2231158A1 publication Critical patent/FR2231158A1/fr
Application granted granted Critical
Publication of FR2231158B1 publication Critical patent/FR2231158B1/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]
    • H—ELECTRICITY
    • H03—ELECTRONIC CIRCUITRY
    • H03H—IMPEDANCE NETWORKS, e.g. RESONANT CIRCUITS; RESONATORS
    • H03H17/00—Networks using digital techniques
    • H03H17/02—Frequency selective networks
    • H03H17/06—Non-recursive filters
    • H03H17/0614—Non-recursive filters using Delta-modulation
    • H—ELECTRICITY
    • H03—ELECTRONIC CIRCUITRY
    • H03H—IMPEDANCE NETWORKS, e.g. RESONANT CIRCUITS; RESONATORS
    • H03H17/00—Networks using digital techniques
    • H03H17/02—Frequency selective networks
    • H03H17/06—Non-recursive filters
    • H03H17/0621—Non-recursive filters with input-sampling frequency and output-delivery frequency which differ, e.g. extrapolation; Anti-aliasing
    • H03H17/0635—Non-recursive filters with input-sampling frequency and output-delivery frequency which differ, e.g. extrapolation; Anti-aliasing characterized by the ratio between the input-sampling and output-delivery frequencies
    • H03H17/065—Non-recursive filters with input-sampling frequency and output-delivery frequency which differ, e.g. extrapolation; Anti-aliasing characterized by the ratio between the input-sampling and output-delivery frequencies the ratio being integer
    • H03H17/0657—Non-recursive filters with input-sampling frequency and output-delivery frequency which differ, e.g. extrapolation; Anti-aliasing characterized by the ratio between the input-sampling and output-delivery frequencies the ratio being integer where the output-delivery frequency is higher than the input sampling frequency, i.e. interpolation

Landscapes

  • Engineering & Computer Science (AREA)
  • Physics & Mathematics (AREA)
  • Computer Hardware Design (AREA)
  • Mathematical Physics (AREA)
  • Theoretical Computer Science (AREA)
  • Compression, Expansion, Code Conversion, And Decoders (AREA)
  • Use Of Switch Circuits For Exchanges And Methods Of Control Of Multiplex Exchanges (AREA)
FR7417842A 1973-05-24 1974-05-22 Expired FR2231158B1 (fr)

Applications Claiming Priority (1)

Application Number Priority Date Filing Date Title
NL7307237A NL7307237A (fr) 1973-05-24 1973-05-24

Publications (2)

Publication Number Publication Date
FR2231158A1 true FR2231158A1 (fr) 1974-12-20
FR2231158B1 FR2231158B1 (fr) 1979-03-09

Family

ID=19818935

Family Applications (1)

Application Number Title Priority Date Filing Date
FR7417842A Expired FR2231158B1 (fr) 1973-05-24 1974-05-22

Country Status (8)

Country Link
JP (1) JPS5042774A (fr)
BE (1) BE815408A (fr)
CA (1) CA1023864A (fr)
DK (1) DK135019B (fr)
FR (1) FR2231158B1 (fr)
GB (1) GB1455733A (fr)
NL (1) NL7307237A (fr)
SE (1) SE388520B (fr)

Cited By (2)

* Cited by examiner, † Cited by third party
Publication number Priority date Publication date Assignee Title
FR2285025A1 (fr) * 1974-09-16 1976-04-09 Philips Nv Filtre numerique interpolant
FR2326823A1 (fr) * 1975-10-02 1977-04-29 Tech Electro Fse Procede et dispositif pour le traitement de trames de reception dans une chaine de parole d'une unite de raccordement d'abonnes dans un central de telecommunications

Families Citing this family (2)

* Cited by examiner, † Cited by third party
Publication number Priority date Publication date Assignee Title
GB2133238A (en) * 1982-12-10 1984-07-18 Marconi Co Ltd Coder/decoder arrangements
JPS6354827A (ja) * 1986-08-26 1988-03-09 Sony Corp 差分ｐｃｍ信号形成回路

Non-Patent Citations (3)

* Cited by examiner, † Cited by third party
Title
REVUE US : "THE BELL SYSTEM TECHNICAL JOURNAL", VOL. 48, NO. 2, FEVRIER 1969, PAGES 321-343, ARTICLE: "THE APPLIACTION OF DELTA-MODULATION TO ANALOG-TO-PCM-ENCODING" GOODMAN *
REVUE US: "IBM TECHNICAL DISCLOSURE BULLETIN", VOL. 15 NO 8, JANVIER 1973, PAGES 2461-2462, ARTICLE: "PULSE CODE MODULATION TO DELTA CONVERTER" BERAUD *
REVUE US: "THE BELL SYSTEM TECHNICAL JOURNAL", VOL. 52, NO. 2, FEVRIER 1973, PAGES 183-204, ARTICLE: "QUANTIZING NOISE OFAM PCM ENCODERS" GOODMAN ET GREENSTEIN *

Cited By (2)

* Cited by examiner, † Cited by third party
Publication number Priority date Publication date Assignee Title
FR2285025A1 (fr) * 1974-09-16 1976-04-09 Philips Nv Filtre numerique interpolant
FR2326823A1 (fr) * 1975-10-02 1977-04-29 Tech Electro Fse Procede et dispositif pour le traitement de trames de reception dans une chaine de parole d'une unite de raccordement d'abonnes dans un central de telecommunications

Also Published As

Publication number Publication date
DK135019C (fr) 1977-07-11
DE2422926B2 (de) 1977-03-17
SE388520B (sv) 1976-10-04
CA1023864A (fr) 1978-01-03
DE2422926A1 (de) 1974-12-12
NL7307237A (fr) 1974-11-26
DK277674A (fr) 1975-01-13
JPS5042774A (fr) 1975-04-18
GB1455733A (en) 1976-11-17
FR2231158B1 (fr) 1979-03-09
BE815408A (fr) 1974-11-22
DK135019B (da) 1977-02-21
AU6912874A (en) 1975-11-20

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Legal Events

Date Code Title Description
ST Notification of lapse