TW252240B - - Google Patents

Info

Publication number
TW252240B
TW252240B TW083103627A TW83103627A TW252240B TW 252240 B TW252240 B TW 252240B TW 083103627 A TW083103627 A TW 083103627A TW 83103627 A TW83103627 A TW 83103627A TW 252240 B TW252240 B TW 252240B
Authority
TW
Taiwan
Application number
TW083103627A
Other languages
Chinese (zh)
Original Assignee
At & T 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 At & T Corp filed Critical At & T Corp
Application granted granted Critical
Publication of TW252240B publication Critical patent/TW252240B/zh

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
    • 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
    • G—PHYSICS
    • G06—COMPUTING OR CALCULATING; COUNTING
    • G06F—ELECTRIC DIGITAL DATA PROCESSING
    • G06F1/00—Details not covered by groups G06F3/00 - G06F13/00 and G06F21/00
    • G06F1/02—Digital function generators
    • G06F1/03—Digital function generators working, at least partly, by table look-up
    • G06F1/0321—Waveform generators, i.e. devices for generating periodical functions of time, e.g. direct digital synthesizers
    • G06F1/0328—Waveform generators, i.e. devices for generating periodical functions of time, e.g. direct digital synthesizers in which the phase increment is adjustable, e.g. by using an adder-accumulator
    • 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
    • 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

Landscapes

  • Engineering & Computer Science (AREA)
  • Theoretical Computer Science (AREA)
  • Physics & Mathematics (AREA)
  • General Engineering & Computer Science (AREA)
  • General Physics & Mathematics (AREA)
  • Computer Networks & Wireless Communication (AREA)
  • Signal Processing (AREA)
  • Compression, Expansion, Code Conversion, And Decoders (AREA)
  • Analogue/Digital Conversion (AREA)
  • Transmission Systems Not Characterized By The Medium Used For Transmission (AREA)
TW083103627A 1993-12-21 1994-04-23 TW252240B (OSRAM)

Applications Claiming Priority (1)

Application Number Priority Date Filing Date Title
US08/171,485 US5424739A (en) 1993-12-21 1993-12-21 Device and method for digitally shaping the quantization noise of an N-bit digital signal, such as for digital-to-analog conversion

Publications (1)

Publication Number Publication Date
TW252240B true TW252240B (OSRAM) 1995-07-21

Family

ID=22623903

Family Applications (1)

Application Number Title Priority Date Filing Date
TW083103627A TW252240B (OSRAM) 1993-12-21 1994-04-23

Country Status (6)

Country Link
US (1) US5424739A (OSRAM)
EP (1) EP0660532B1 (OSRAM)
JP (1) JPH07212236A (OSRAM)
KR (1) KR0174028B1 (OSRAM)
DE (1) DE69428869T2 (OSRAM)
TW (1) TW252240B (OSRAM)

Cited By (1)

* Cited by examiner, † Cited by third party
Publication number Priority date Publication date Assignee Title
CN104954010A (zh) * 2014-03-25 2015-09-30 英特尔Ip公司 用于量化输入量的量化电路和方法

Families Citing this family (28)

* Cited by examiner, † Cited by third party
Publication number Priority date Publication date Assignee Title
US5602874A (en) * 1994-12-29 1997-02-11 Motorola, Inc. Method and apparatus for reducing quantization noise
US5745061A (en) * 1995-07-28 1998-04-28 Lucent Technologies Inc. Method of improving the stability of a sigma-delta modulator employing dither
DE69623749D1 (de) * 1996-02-23 2002-10-24 St Microelectronics Srl Eingabe eines Rausch-weissenden Signals in einem bei der Wandlung digitaler Audiosignale angewandten Sigma-Delta-Modulator
WO1998048515A1 (en) * 1997-04-18 1998-10-29 Steensgaard Madsen Jesper Oversampled digital-to-analog converter based on nonlinear separation and linear recombination
US5835038A (en) * 1997-05-08 1998-11-10 Burr-Brown Corporation DC dither circuitry and method for delta-sigma modulator
FR2765419B1 (fr) * 1997-06-27 1999-09-17 Thomson Csf Dispositif de generation de signaux analogiques a partir de convertisseurs analogique-numerique, notamment pour la synthese numerique directe
US6137809A (en) * 1997-08-22 2000-10-24 Paradyne Corporation Quantization noise compensator apparatus and method
US6326911B1 (en) * 1997-11-19 2001-12-04 Texas Instruments Incorporated Method and apparatus for dithering idle channel tones in delta-sigma analog-to-digital converters
US6366622B1 (en) 1998-12-18 2002-04-02 Silicon Wave, Inc. Apparatus and method for wireless communications
US6355537B1 (en) 1999-02-23 2002-03-12 Silicon Wave, Inc. Method of providing radio frequency isolation of device mesas using guard ring regions within an integrated circuit device
JP2000269821A (ja) * 1999-03-18 2000-09-29 Oki Micro Design Co Ltd 予測符号化信号復号化装置及び雑音除去方法
US6627954B1 (en) 1999-03-19 2003-09-30 Silicon Wave, Inc. Integrated circuit capacitor in a silicon-on-insulator integrated circuit
AUPQ122699A0 (en) * 1999-06-25 1999-07-22 Lake Dsp Pty Limited Sigma delta modulator with buried data
DE19935840A1 (de) * 1999-07-29 2001-03-08 Siemens Ag Schaltungsanordnung zur Abtastratenumsetzung zeitdiskreter Signale
JP2001077692A (ja) 1999-09-02 2001-03-23 Nec Ic Microcomput Syst Ltd Ｄ／ａ変換回路
US6429502B1 (en) 2000-08-22 2002-08-06 Silicon Wave, Inc. Multi-chambered trench isolated guard ring region for providing RF isolation
WO2002023731A2 (en) * 2000-09-11 2002-03-21 Broadcom Corporation Methods and systems for digital dither
WO2003001677A2 (en) * 2001-06-21 2003-01-03 Nokia Corporation Digital-to-analog converter device and digital-to-analog conversion method
US7145936B2 (en) * 2002-12-23 2006-12-05 International Business Machines Corporation Bandpass delta sigma truncator and method of truncating a multi-bit digital signal
US6822594B1 (en) * 2003-10-09 2004-11-23 Cirrus Logic, Inc. Overload protection and stability for high order 1-bit delta-sigma modulators
US7345606B2 (en) 2004-01-28 2008-03-18 Nxp B.V. DA-converter system and a method for converting a multi-bit digital signal to an analog signal
US7321634B2 (en) * 2004-12-17 2008-01-22 Verigy (Singapore) Pte. Ltd. Method and apparatus for variable sigma-delta modulation
US7425910B1 (en) * 2006-02-27 2008-09-16 Marvell International Ltd. Transmitter digital-to-analog converter with noise shaping
JP2012522459A (ja) * 2009-03-31 2012-09-20 アギア システムズ インコーポレーテッド デルタシグマ変調器を用いてｒｆ信号を直接合成するための方法および装置
DE102010043842A1 (de) * 2010-11-12 2012-05-16 Endress + Hauser Wetzer Gmbh + Co Kg Delta-Sigma-D/A-Wandler
DE102014113951B4 (de) 2014-09-26 2017-07-13 Intel IP Corporation Eine Schaltung, eine integrierte Schaltung, ein Sender, ein Empfänger, ein Sendeempfänger, ein Verfahren zum Erzeugen eines verarbeiteten Oszillatorsignals, eine Vorrichtung zum Erzeugen eines verarbeiteten Oszillatorsignals und softwarebezogene Implementierungen
WO2016199596A1 (ja) * 2015-06-10 2016-12-15 ソニー株式会社 信号処理装置、信号処理方法、およびプログラム
US11581901B2 (en) * 2020-09-21 2023-02-14 Apple Inc. Digital pre-distortion compensation of digital-to-analog converter non-linearity

Family Cites Families (3)

* Cited by examiner, † Cited by third party
Publication number Priority date Publication date Assignee Title
DE3021012C2 (de) * 1980-06-03 1985-08-22 ANT Nachrichtentechnik GmbH, 7150 Backnang Verallgemeinertes interpolativers Verfahren zur Digital-Analog-Umsetzung von PCM Signalen
US4593271A (en) * 1985-01-16 1986-06-03 At&T Bell Laboratories Higher order interpolation for digital-to-analog conversion
US5144308A (en) * 1991-05-21 1992-09-01 At&T Bell Laboratories Idle channel tone and periodic noise suppression for sigma-delta modulators using high-level dither

Cited By (2)

* Cited by examiner, † Cited by third party
Publication number Priority date Publication date Assignee Title
CN104954010A (zh) * 2014-03-25 2015-09-30 英特尔Ip公司 用于量化输入量的量化电路和方法
CN104954010B (zh) * 2014-03-25 2019-08-13 英特尔Ip公司 用于量化输入量的量化电路和方法

Also Published As

Publication number Publication date
KR0174028B1 (ko) 1999-04-01
DE69428869T2 (de) 2002-07-11
JPH07212236A (ja) 1995-08-11
EP0660532A2 (en) 1995-06-28
KR950022176A (ko) 1995-07-28
DE69428869D1 (de) 2001-12-06
US5424739A (en) 1995-06-13
EP0660532A3 (en) 1996-06-05
EP0660532B1 (en) 2001-10-31

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Legal Events

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