DE3780640D1 - Offset-korrekturschaltung fuer eine sigma-delta-kodierungsvorrichtung. - Google Patents

Offset-korrekturschaltung fuer eine sigma-delta-kodierungsvorrichtung.

Info

Publication number
DE3780640D1
DE3780640D1 DE8787480015T DE3780640T DE3780640D1 DE 3780640 D1 DE3780640 D1 DE 3780640D1 DE 8787480015 T DE8787480015 T DE 8787480015T DE 3780640 T DE3780640 T DE 3780640T DE 3780640 D1 DE3780640 D1 DE 3780640D1
Authority
DE
Germany
Prior art keywords
bit
correction circuit
encoding device
offset correction
sigma delta
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 - Fee Related
Application number
DE8787480015T
Other languages
English (en)
Other versions
DE3780640T2 (de
Inventor
Maurice Cukier
Frederik Marciano
Patrick Michel
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.)
International Business Machines Corp
Original Assignee
International Business Machines 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 International Business Machines Corp filed Critical International Business Machines Corp
Application granted granted Critical
Publication of DE3780640D1 publication Critical patent/DE3780640D1/de
Publication of DE3780640T2 publication Critical patent/DE3780640T2/de
Anticipated expiration legal-status Critical
Expired - Fee Related legal-status Critical Current

Links

Classifications

    • H—ELECTRICITY
    • H04—ELECTRIC COMMUNICATION TECHNIQUE
    • H04B—TRANSMISSION
    • H04B14/00—Transmission systems not characterised by the medium used for transmission
    • H04B14/02—Transmission systems not characterised by the medium used for transmission characterised by the use of pulse modulation
    • H04B14/06—Transmission systems not characterised by the medium used for transmission characterised by the use of pulse modulation using differential modulation, e.g. delta modulation
    • H04B14/062—Transmission systems not characterised by the medium used for transmission characterised by the use of pulse modulation using differential modulation, e.g. delta modulation using delta modulation or one-bit differential modulation [1DPCM]
    • H—ELECTRICITY
    • H03—ELECTRONIC CIRCUITRY
    • H03M—CODING; DECODING; CODE CONVERSION IN GENERAL
    • H03M3/00—Conversion of analogue values to or from differential modulation
    • H03M3/30—Delta-sigma modulation
    • H03M3/322—Continuously compensating for, or preventing, undesired influence of physical parameters
    • H03M3/352—Continuously compensating for, or preventing, undesired influence of physical parameters of deviations from the desired transfer characteristic
    • H03M3/354—Continuously compensating for, or preventing, undesired influence of physical parameters of deviations from the desired transfer characteristic at one point, i.e. by adjusting a single reference value, e.g. bias or gain error
    • H03M3/356—Offset or drift compensation
    • H—ELECTRICITY
    • H03—ELECTRONIC CIRCUITRY
    • H03M—CODING; DECODING; CODE CONVERSION IN GENERAL
    • H03M3/00—Conversion of analogue values to or from differential modulation
    • H03M3/30—Delta-sigma modulation
    • H03M3/50—Digital/analogue converters using delta-sigma modulation as an intermediate step

Landscapes

  • Engineering & Computer Science (AREA)
  • Theoretical Computer Science (AREA)
  • Computer Networks & Wireless Communication (AREA)
  • Signal Processing (AREA)
  • Compression, Expansion, Code Conversion, And Decoders (AREA)
  • Analogue/Digital Conversion (AREA)
DE8787480015T 1987-10-19 1987-10-19 Offset-korrekturschaltung fuer eine sigma-delta-kodierungsvorrichtung. Expired - Fee Related DE3780640T2 (de)

Applications Claiming Priority (1)

Application Number Priority Date Filing Date Title
EP87480015A EP0312672B1 (de) 1987-10-19 1987-10-19 Offset-Korrekturschaltung für eine Sigma-Delta-Kodierungsvorrichtung

Publications (2)

Publication Number Publication Date
DE3780640D1 true DE3780640D1 (de) 1992-08-27
DE3780640T2 DE3780640T2 (de) 1993-03-11

Family

ID=8198328

Family Applications (1)

Application Number Title Priority Date Filing Date
DE8787480015T Expired - Fee Related DE3780640T2 (de) 1987-10-19 1987-10-19 Offset-korrekturschaltung fuer eine sigma-delta-kodierungsvorrichtung.

Country Status (4)

Country Link
US (1) US4897856A (de)
EP (1) EP0312672B1 (de)
JP (1) JPH01122211A (de)
DE (1) DE3780640T2 (de)

Families Citing this family (5)

* Cited by examiner, † Cited by third party
Publication number Priority date Publication date Assignee Title
DE68913967T2 (de) * 1989-07-12 1994-09-22 Ibm Sigma-Delta-Konverter mit einer Dämpfungsfunktion sowie einer Übertragungsfunktion, die unempfindlich gegenüber Fehlanpassungen der Anstiegs- und Abfallzeiten der Schaltelemente ist.
US5153593A (en) * 1990-04-26 1992-10-06 Hughes Aircraft Company Multi-stage sigma-delta analog-to-digital converter
US5231395A (en) * 1992-03-30 1993-07-27 Motorola, Inc. Sigma-delta digital-to-analog converter with reduced distortion
US5220326A (en) * 1992-03-30 1993-06-15 Motorola, Inc. Digital-to-analog converter with improved performance and method therefor
US6411232B1 (en) 1999-09-30 2002-06-25 Motorola, Inc. Method and system for determining an element conversion characteristic contemporaneous with converting and input signal in a signal converter

Family Cites Families (4)

* Cited by examiner, † Cited by third party
Publication number Priority date Publication date Assignee Title
NL7501341A (nl) * 1975-02-05 1976-08-09 Philips Nv Ontvanger voor de ontvangst van door pulscode- modulatie overgedragen signalen.
GB1580447A (en) * 1976-12-01 1980-12-03 Post Office Code converters
US4528551A (en) * 1979-11-28 1985-07-09 International Telephone And Telegraph Corporation Digital to analog converter employing sigma-delta modulation for use in telephone systems
DE3021012C2 (de) * 1980-06-03 1985-08-22 ANT Nachrichtentechnik GmbH, 7150 Backnang Verallgemeinertes interpolativers Verfahren zur Digital-Analog-Umsetzung von PCM Signalen

Also Published As

Publication number Publication date
US4897856A (en) 1990-01-30
EP0312672A1 (de) 1989-04-26
JPH01122211A (ja) 1989-05-15
EP0312672B1 (de) 1992-07-22
DE3780640T2 (de) 1993-03-11

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Legal Events

Date Code Title Description
8364 No opposition during term of opposition
8339 Ceased/non-payment of the annual fee