DE69324100D1 - Schaltung und Verfahren für Rauschformung - Google Patents

Schaltung und Verfahren für Rauschformung

Info

Publication number
DE69324100D1
DE69324100D1 DE69324100T DE69324100T DE69324100D1 DE 69324100 D1 DE69324100 D1 DE 69324100D1 DE 69324100 T DE69324100 T DE 69324100T DE 69324100 T DE69324100 T DE 69324100T DE 69324100 D1 DE69324100 D1 DE 69324100D1
Authority
DE
Germany
Prior art keywords
circuit
noise shaping
shaping
noise
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
DE69324100T
Other languages
English (en)
Other versions
DE69324100T2 (de
Inventor
Tohru Sugihara
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 Corp
Original Assignee
Sony 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 Sony Corp filed Critical Sony Corp
Publication of DE69324100D1 publication Critical patent/DE69324100D1/de
Application granted granted Critical
Publication of DE69324100T2 publication Critical patent/DE69324100T2/de
Anticipated expiration legal-status Critical
Expired - Fee Related legal-status Critical Current

Links

Classifications

    • G—PHYSICS
    • G11—INFORMATION STORAGE
    • G11B—INFORMATION STORAGE BASED ON RELATIVE MOVEMENT BETWEEN RECORD CARRIER AND TRANSDUCER
    • G11B20/00—Signal processing not specific to the method of recording or reproducing; Circuits therefor
    • G11B20/24—Signal processing not specific to the method of recording or reproducing; Circuits therefor for reducing noise
    • 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
    • H03M7/3006—Compensating for, or preventing of, undesired influence of physical parameters
    • H03M7/3011—Compensating for, or preventing of, undesired influence of physical parameters of non-linear distortion, e.g. by temporarily adapting the operation upon detection of instability conditions
    • G—PHYSICS
    • G11—INFORMATION STORAGE
    • G11B—INFORMATION STORAGE BASED ON RELATIVE MOVEMENT BETWEEN RECORD CARRIER AND TRANSDUCER
    • G11B20/00—Signal processing not specific to the method of recording or reproducing; Circuits therefor
    • G11B20/10—Digital recording or reproducing
    • G11B20/10527—Audio or video recording; Data buffering arrangements
    • 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
    • H04B14/04—Transmission systems not characterised by the medium used for transmission characterised by the use of pulse modulation using pulse code modulation
    • H04B14/046—Systems or methods for reducing noise or bandwidth
    • 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
    • H03M7/3026—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 multiple 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
    • H03M7/3042—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 being of the error feedback type, i.e. having loop filter stages in the feedback path only

Landscapes

  • Engineering & Computer Science (AREA)
  • Signal Processing (AREA)
  • Computer Networks & Wireless Communication (AREA)
  • Multimedia (AREA)
  • Physics & Mathematics (AREA)
  • Nonlinear Science (AREA)
  • Theoretical Computer Science (AREA)
  • Compression, Expansion, Code Conversion, And Decoders (AREA)
  • Analogue/Digital Conversion (AREA)
  • Filters That Use Time-Delay Elements (AREA)
DE69324100T 1992-10-31 1993-10-29 Schaltung und Verfahren für Rauschformung Expired - Fee Related DE69324100T2 (de)

Applications Claiming Priority (1)

Application Number Priority Date Filing Date Title
JP31652092A JP3225644B2 (ja) 1992-10-31 1992-10-31 ノイズシェイピング回路

Publications (2)

Publication Number Publication Date
DE69324100D1 true DE69324100D1 (de) 1999-04-29
DE69324100T2 DE69324100T2 (de) 1999-09-30

Family

ID=18078029

Family Applications (1)

Application Number Title Priority Date Filing Date
DE69324100T Expired - Fee Related DE69324100T2 (de) 1992-10-31 1993-10-29 Schaltung und Verfahren für Rauschformung

Country Status (5)

Country Link
US (1) US5493296A (de)
EP (1) EP0596662B1 (de)
JP (1) JP3225644B2 (de)
KR (1) KR0170422B1 (de)
DE (1) DE69324100T2 (de)

Families Citing this family (20)

* Cited by examiner, † Cited by third party
Publication number Priority date Publication date Assignee Title
EP0692881B1 (de) * 1993-11-09 2005-06-15 Sony Corporation Quantisierungsvorrichtung und -verfahren, kodierer und kodierverfahren mit hoher effizienz, dekodierer und aufzeichnungsträger
JP3334419B2 (ja) * 1995-04-20 2002-10-15 ソニー株式会社 ノイズ低減方法及びノイズ低減装置
EP0954849B1 (de) * 1997-10-31 2003-05-28 Koninklijke Philips Electronics N.V. Verfahren und gerät zur audiorepräsentation von nach dem lpc prinzip kodierter sprache durch hinzufügen von rauschsignalen
US6600788B1 (en) * 1999-09-10 2003-07-29 Xilinx, Inc. Narrow-band filter including sigma-delta modulator implemented in a programmable logic device
US7171355B1 (en) 2000-10-25 2007-01-30 Broadcom Corporation Method and apparatus for one-stage and two-stage noise feedback coding of speech and audio signals
JP2002344320A (ja) * 2001-05-21 2002-11-29 Sony Corp ディジタル信号処理装置及びディジタル信号処理方法
US7110942B2 (en) * 2001-08-14 2006-09-19 Broadcom Corporation Efficient excitation quantization in a noise feedback coding system using correlation techniques
GB0200027D0 (en) * 2002-01-02 2002-02-13 Bae Systems Plc Improvements relating to operation of a current controller
US7206740B2 (en) * 2002-01-04 2007-04-17 Broadcom Corporation Efficient excitation quantization in noise feedback coding with general noise shaping
US6751587B2 (en) 2002-01-04 2004-06-15 Broadcom Corporation Efficient excitation quantization in noise feedback coding with general noise shaping
WO2003079181A2 (en) 2002-03-08 2003-09-25 Seagate Technology Llc Method and apparatus for generating random numbers based on filter coefficients of an adaptive filter
US7522901B2 (en) * 2004-01-20 2009-04-21 Broadcom Corporation Direct digital conversion tuner and method for using same
US8473286B2 (en) * 2004-02-26 2013-06-25 Broadcom Corporation Noise feedback coding system and method for providing generalized noise shaping within a simple filter structure
US8335684B2 (en) * 2006-07-12 2012-12-18 Broadcom Corporation Interchangeable noise feedback coding and code excited linear prediction encoders
US7425911B2 (en) * 2006-08-10 2008-09-16 Texas Instruments Incorporated Signal-to-noise ratio when using fewer bits than the number of output bits of an analog to digital converter
US8081028B2 (en) * 2007-12-31 2011-12-20 Intersil Americas Inc. Systems and methods for improved over-current clipping
JP4840467B2 (ja) * 2009-03-16 2011-12-21 セイコーエプソン株式会社 インクジェットプリンタ
US7928867B2 (en) * 2009-08-31 2011-04-19 Infineon Technologies Ag Analog to digital converter with digital filter
US9524794B1 (en) * 2015-08-10 2016-12-20 Sandisk Technologies Llc Constrained data shaping
US10211848B1 (en) 2018-03-27 2019-02-19 Synaptics Incorporated Delta sigma modulator systems and methods

Family Cites Families (5)

* Cited by examiner, † Cited by third party
Publication number Priority date Publication date Assignee Title
JPS6031326A (ja) * 1983-07-29 1985-02-18 Nec Corp Ｄｐｃｍ符号化復号化方法および装置
JP2801644B2 (ja) * 1989-06-05 1998-09-21 パイオニア株式会社 ディザ回路
JPH0472909A (ja) * 1990-07-13 1992-03-06 Sony Corp オーディオ信号の量子化誤差低減装置
JPH07120950B2 (ja) * 1990-09-05 1995-12-20 ヤマハ株式会社 Ｄａ変換装置
JP3168620B2 (ja) * 1991-07-03 2001-05-21 ソニー株式会社 ディジタル／アナログ変換装置

Also Published As

Publication number Publication date
JP3225644B2 (ja) 2001-11-05
EP0596662B1 (de) 1999-03-24
US5493296A (en) 1996-02-20
JPH06152329A (ja) 1994-05-31
EP0596662A3 (de) 1995-04-05
KR0170422B1 (ko) 1999-04-15
KR940010055A (ko) 1994-05-24
DE69324100T2 (de) 1999-09-30
EP0596662A2 (de) 1994-05-11

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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