CA1072684A - Codeur-decodeur numerique - Google Patents

Codeur-decodeur numerique

Info

Publication number
CA1072684A
CA1072684A CA235,331A CA235331A CA1072684A CA 1072684 A CA1072684 A CA 1072684A CA 235331 A CA235331 A CA 235331A CA 1072684 A CA1072684 A CA 1072684A
Authority
CA
Canada
Prior art keywords
signal
attack
compand
decay
preselected sequence
Prior art date
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.)
Expired
Application number
CA235,331A
Other languages
English (en)
Inventor
Peter L. Smith
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.)
Ericsson Australia Pty Ltd
Original Assignee
LM Ericsson Pty Ltd
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
Priority claimed from US05/506,777 external-priority patent/US4042921A/en
Application filed by LM Ericsson Pty Ltd filed Critical LM Ericsson Pty Ltd
Application granted granted Critical
Publication of CA1072684A publication Critical patent/CA1072684A/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]
    • H03M3/024—Delta modulation, i.e. one-bit differential modulation with adaptable step size, e.g. adaptive delta modulation [ADM] using syllabic companding, e.g. continuously variable slope delta modulation [CVSD]

Landscapes

  • Engineering & Computer Science (AREA)
  • Theoretical Computer Science (AREA)
  • Compression, Expansion, Code Conversion, And Decoders (AREA)
  • Arrangements For Transmission Of Measured Signals (AREA)
  • Polysaccharides And Polysaccharide Derivatives (AREA)
  • Analogue/Digital Conversion (AREA)
CA235,331A 1974-09-17 1975-09-12 Codeur-decodeur numerique Expired CA1072684A (fr)

Applications Claiming Priority (1)

Application Number Priority Date Filing Date Title
US05/506,777 US4042921A (en) 1973-12-11 1974-09-17 Digital encoder/decoder

Publications (1)

Publication Number Publication Date
CA1072684A true CA1072684A (fr) 1980-02-26

Family

ID=24015973

Family Applications (1)

Application Number Title Priority Date Filing Date
CA235,331A Expired CA1072684A (fr) 1974-09-17 1975-09-12 Codeur-decodeur numerique

Country Status (11)

Country Link
JP (1) JPS5156167A (fr)
BE (1) BE833490A (fr)
CA (1) CA1072684A (fr)
DE (1) DE2541476A1 (fr)
DK (1) DK414275A (fr)
FI (1) FI752580A (fr)
FR (1) FR2285755A1 (fr)
IT (1) IT1042619B (fr)
NL (1) NL7510928A (fr)
NO (1) NO753151L (fr)
SE (1) SE7510188L (fr)

Families Citing this family (1)

* Cited by examiner, † Cited by third party
Publication number Priority date Publication date Assignee Title
JPH01157028U (fr) * 1988-04-21 1989-10-30

Family Cites Families (2)

* Cited by examiner, † Cited by third party
Publication number Priority date Publication date Assignee Title
FR2098466A5 (fr) * 1969-10-16 1972-03-10 Ibm France
US3806806A (en) * 1972-11-20 1974-04-23 Bell Telephone Labor Inc Adaptive data modulator

Also Published As

Publication number Publication date
FI752580A (fr) 1976-03-18
BE833490A (fr) 1976-01-16
SE7510188L (sv) 1976-03-18
JPS5732527B2 (fr) 1982-07-12
DE2541476A1 (de) 1976-03-25
DK414275A (da) 1976-03-18
NL7510928A (nl) 1976-03-19
FR2285755B3 (fr) 1979-06-29
JPS5156167A (en) 1976-05-17
NO753151L (fr) 1976-03-18
IT1042619B (it) 1980-01-30
FR2285755A1 (fr) 1976-04-16

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Legal Events

Date Code Title Description
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