DE69728499D1 - Signalprozessoren für 1-Bit-Signale mit Sigma-Delta-Modulatoren n-ter Ordnung - Google Patents

Signalprozessoren für 1-Bit-Signale mit Sigma-Delta-Modulatoren n-ter Ordnung

Info

Publication number
DE69728499D1
DE69728499D1 DE69728499T DE69728499T DE69728499D1 DE 69728499 D1 DE69728499 D1 DE 69728499D1 DE 69728499 T DE69728499 T DE 69728499T DE 69728499 T DE69728499 T DE 69728499T DE 69728499 D1 DE69728499 D1 DE 69728499D1
Authority
DE
Germany
Prior art keywords
nth
signal processors
bit signals
delta modulators
order sigma
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 - Lifetime
Application number
DE69728499T
Other languages
English (en)
Other versions
DE69728499T2 (de
Inventor
Peter Charles Eastty
Christopher Sleight
Peter Damien Thorpe
James Andrew Scott Angus
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.)
Sony Europe Ltd
Original Assignee
Sony United Kingdom 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
Application filed by Sony United Kingdom Ltd filed Critical Sony United Kingdom Ltd
Application granted granted Critical
Publication of DE69728499D1 publication Critical patent/DE69728499D1/de
Publication of DE69728499T2 publication Critical patent/DE69728499T2/de
Anticipated expiration legal-status Critical
Expired - Lifetime 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
    • H03M7/3004—Digital delta-sigma modulation
    • H03M7/3015—Structural details of digital delta-sigma modulators
    • H03M7/3031—Structural details of digital delta-sigma modulators characterised by the order of the loop filter, e.g. having a first order loop filter in the feedforward path
    • H03M7/3033—Structural details of digital delta-sigma modulators characterised by the order of the loop filter, e.g. having a first order loop filter in the feedforward path the modulator having a higher order loop filter in the feedforward path, e.g. with distributed feedforward inputs
    • 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
    • H03M7/3004—Digital delta-sigma modulation
    • H03M7/3015—Structural details of digital delta-sigma modulators
    • H03M7/302—Structural details of digital delta-sigma modulators characterised by the number of quantisers and their type and resolution
    • H03M7/3024—Structural details of digital delta-sigma modulators characterised by the number of quantisers and their type and resolution having one quantiser only
    • H03M7/3028—Structural details of digital delta-sigma modulators characterised by the number of quantisers and their type and resolution having one quantiser only the quantiser being a single bit one
    • 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
    • H03M7/3004—Digital delta-sigma modulation
    • H03M7/3015—Structural details of digital delta-sigma modulators
    • H03M7/3031—Structural details of digital delta-sigma modulators characterised by the order of the loop filter, e.g. having a first order loop filter in the feedforward path
    • H03M7/3033—Structural details of digital delta-sigma modulators characterised by the order of the loop filter, e.g. having a first order loop filter in the feedforward path the modulator having a higher order loop filter in the feedforward path, e.g. with distributed feedforward inputs
    • H03M7/304—Structural details of digital delta-sigma modulators characterised by the order of the loop filter, e.g. having a first order loop filter in the feedforward path the modulator having a higher order loop filter in the feedforward path, e.g. with distributed feedforward inputs with distributed feedback, i.e. with feedback paths from the quantiser output to more than one filter stage

Landscapes

  • Engineering & Computer Science (AREA)
  • Theoretical Computer Science (AREA)
  • Compression, Expansion, Code Conversion, And Decoders (AREA)
DE69728499T 1996-11-27 1997-10-30 Signalprozessoren für 1-Bit-Signale mit Sigma-Delta-Modulatoren n-ter Ordnung Expired - Lifetime DE69728499T2 (de)

Applications Claiming Priority (2)

Application Number Priority Date Filing Date Title
GB9624673A GB2319932B (en) 1996-11-27 1996-11-27 Signal processors
GB9624673 1996-11-27

Publications (2)

Publication Number Publication Date
DE69728499D1 true DE69728499D1 (de) 2004-05-13
DE69728499T2 DE69728499T2 (de) 2005-03-24

Family

ID=10803569

Family Applications (1)

Application Number Title Priority Date Filing Date
DE69728499T Expired - Lifetime DE69728499T2 (de) 1996-11-27 1997-10-30 Signalprozessoren für 1-Bit-Signale mit Sigma-Delta-Modulatoren n-ter Ordnung

Country Status (6)

Country Link
US (1) US6604009B2 (de)
EP (1) EP0845867B1 (de)
KR (1) KR100503687B1 (de)
CN (1) CN1192485C (de)
DE (1) DE69728499T2 (de)
GB (1) GB2319932B (de)

Families Citing this family (9)

* Cited by examiner, † Cited by third party
Publication number Priority date Publication date Assignee Title
WO2004105251A1 (en) * 2003-05-21 2004-12-02 Analog Devices, Inc. A sigma-delta modulator with reduced switching rate for use in class-d amplification
US7034730B2 (en) * 2003-10-03 2006-04-25 Wright State University Pipelined delta sigma modulator analog to digital converter
EP2475192A3 (de) * 2007-12-11 2015-04-01 Bernafon AG Hörgerätsystem mit einem angepassten Filter und Messverfahren
TWI489789B (zh) * 2011-01-21 2015-06-21 Mediatek Singapore Pte Ltd 類比至數位轉換器
US8884796B2 (en) 2011-10-20 2014-11-11 Kathrein-Werke Kg Delta-sigma modulator with feedback signal modification
US9385837B2 (en) 2013-01-18 2016-07-05 Avago Technologies General Ip (Singapore) Pte. Ltd. Cascaded viterbi bitstream generator
US10742231B2 (en) 2016-05-24 2020-08-11 Sony Corporation Compression/encoding apparatus and method, decoding apparatus and method, and program
KR102073474B1 (ko) 2018-05-24 2020-02-04 홍익대학교 산학협력단 비트스트림의 임의성을 검증하는 방법 및 그 시스템
CN115833842B (zh) * 2022-11-21 2024-01-26 泛升云微电子(北京)有限公司 单环δ-σ调制器、锁相环及芯片

Family Cites Families (6)

* Cited by examiner, † Cited by third party
Publication number Priority date Publication date Assignee Title
JP2693577B2 (ja) * 1989-05-30 1997-12-24 株式会社東芝 デルタ・シグマ変調回路
DE69107059T2 (de) * 1990-01-31 1995-08-24 Analog Devices Inc Sigma-delta-modulator.
US5181032A (en) * 1991-09-09 1993-01-19 General Electric Company High-order, plural-bit-quantization sigma-delta modulators using single-bit digital-to-analog conversion feedback
JP3303585B2 (ja) * 1995-03-02 2002-07-22 ソニー株式会社 分散フィードバック式δς変調器
JPH08274646A (ja) * 1995-03-31 1996-10-18 Sony Corp ディジタル信号処理方法及び装置
GB2330710B (en) * 1997-10-24 2001-07-25 Sony Uk Ltd Signal processors

Also Published As

Publication number Publication date
GB2319932B (en) 2001-07-25
CN1192008A (zh) 1998-09-02
EP0845867A3 (de) 2000-03-29
GB9624673D0 (en) 1997-01-15
GB2319932A (en) 1998-06-03
KR19980042810A (ko) 1998-08-17
KR100503687B1 (ko) 2005-10-28
DE69728499T2 (de) 2005-03-24
CN1192485C (zh) 2005-03-09
GB2319932A8 (en) 2000-11-16
US20020159604A1 (en) 2002-10-31
EP0845867A2 (de) 1998-06-03
EP0845867B1 (de) 2004-04-07
US6604009B2 (en) 2003-08-05

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