GB1512136A - Analogue-digital coder-decoder - Google Patents

Analogue-digital coder-decoder

Info

Publication number
GB1512136A
GB1512136A GB41336/76A GB4133676A GB1512136A GB 1512136 A GB1512136 A GB 1512136A GB 41336/76 A GB41336/76 A GB 41336/76A GB 4133676 A GB4133676 A GB 4133676A GB 1512136 A GB1512136 A GB 1512136A
Authority
GB
United Kingdom
Prior art keywords
coding
analogue
decoder
digital
digital coder
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
GB41336/76A
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.)
Alcatel CIT SA
Original Assignee
Alcatel CIT SA
Compagnie Industrielle de Telecommunication CIT Alcatel SA
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 Alcatel CIT SA, Compagnie Industrielle de Telecommunication CIT Alcatel SA filed Critical Alcatel CIT SA
Publication of GB1512136A publication Critical patent/GB1512136A/en
Expired legal-status Critical Current

Links

Classifications

    • H—ELECTRICITY
    • H03—ELECTRONIC CIRCUITRY
    • H03M—CODING; DECODING; CODE CONVERSION IN GENERAL
    • H03M1/00—Analogue/digital conversion; Digital/analogue conversion
    • H03M1/02—Reversible analogue/digital converters
    • H—ELECTRICITY
    • H03—ELECTRONIC CIRCUITRY
    • H03M—CODING; DECODING; CODE CONVERSION IN GENERAL
    • H03M1/00—Analogue/digital conversion; Digital/analogue conversion
    • H03M1/12—Analogue/digital converters
    • H03M1/34—Analogue value compared with reference values
    • H03M1/38—Analogue value compared with reference values sequentially only, e.g. successive approximation type
    • H03M1/46—Analogue value compared with reference values sequentially only, e.g. successive approximation type with digital/analogue converter for supplying reference values to converter

Landscapes

  • Engineering & Computer Science (AREA)
  • Theoretical Computer Science (AREA)
  • Analogue/Digital Conversion (AREA)
  • Compression, Expansion, Code Conversion, And Decoders (AREA)

Abstract

1512136 Analogue-digital coder-decoder COMPAGNIE INDUSTRIELLE DES TELECOMMUNICATIONS CIT-ALCATEL SA 5 Oct 1976 [17 Oct 1975] 41336/76 Heading H3H In an analogue-digital coder-decoder, coding of an analogue input sampled at 7 is performed by the successive approximation method by a loop comprising a comparator 4, register 2 and D-to-A converter 1, and the coding loop is interruptible at any time by a multiplexer 5 to allow a digital input Ed to be decoded by the D-to-A converter 1, any partially completed coding being retained in the register 2 ready for resumption of coding upon completion of decoding. Coding and decoding are at the same sample rate, but asynchronous.
GB41336/76A 1975-10-17 1976-10-05 Analogue-digital coder-decoder Expired GB1512136A (en)

Applications Claiming Priority (1)

Application Number Priority Date Filing Date Title
FR7531838A FR2328327A1 (en) 1975-10-17 1975-10-17 DIGITAL ANALOGUE ENCODER-DECODER

Publications (1)

Publication Number Publication Date
GB1512136A true GB1512136A (en) 1978-05-24

Family

ID=9161328

Family Applications (1)

Application Number Title Priority Date Filing Date
GB41336/76A Expired GB1512136A (en) 1975-10-17 1976-10-05 Analogue-digital coder-decoder

Country Status (10)

Country Link
BE (1) BE846757A (en)
DE (1) DE2645847A1 (en)
DK (1) DK465776A (en)
FR (1) FR2328327A1 (en)
GB (1) GB1512136A (en)
IE (1) IE43320B1 (en)
IT (1) IT1073048B (en)
LU (1) LU75996A1 (en)
NL (1) NL7611380A (en)
SE (1) SE418132B (en)

Cited By (1)

* Cited by examiner, † Cited by third party
Publication number Priority date Publication date Assignee Title
US4747075A (en) * 1985-03-08 1988-05-24 Telefonaktiebolaget Lm Ericsson Apparatus for storing analog signal samples

Families Citing this family (2)

* Cited by examiner, † Cited by third party
Publication number Priority date Publication date Assignee Title
ZA785274B (en) * 1977-10-01 1979-08-29 Plessey Co Ltd Analogue-to-digital converter
JPS58156228A (en) * 1982-02-23 1983-09-17 バア−−ブラウン・リサ−チ・コ−ポレ−シヨン Analog-to-digital converter used for pulse code audio modulation

Cited By (2)

* Cited by examiner, † Cited by third party
Publication number Priority date Publication date Assignee Title
US4747075A (en) * 1985-03-08 1988-05-24 Telefonaktiebolaget Lm Ericsson Apparatus for storing analog signal samples
EP0194239B1 (en) * 1985-03-08 1990-04-18 Telefonaktiebolaget L M Ericsson Apparatus for storing analog signal samples

Also Published As

Publication number Publication date
DK465776A (en) 1977-04-18
FR2328327A1 (en) 1977-05-13
SE7611470L (en) 1977-04-18
IE43320L (en) 1977-04-17
FR2328327B1 (en) 1979-04-27
NL7611380A (en) 1977-04-19
IT1073048B (en) 1985-04-13
IE43320B1 (en) 1981-01-28
BE846757A (en) 1977-03-30
DE2645847A1 (en) 1977-04-21
SE418132B (en) 1981-05-04
LU75996A1 (en) 1977-05-25

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Legal Events

Date Code Title Description
PS Patent sealed [section 19, patents act 1949]
PCNP Patent ceased through non-payment of renewal fee