NL8600862A - Kodeerinrichting. - Google Patents

Kodeerinrichting. Download PDF

Info

Publication number
NL8600862A
NL8600862A NL8600862A NL8600862A NL8600862A NL 8600862 A NL8600862 A NL 8600862A NL 8600862 A NL8600862 A NL 8600862A NL 8600862 A NL8600862 A NL 8600862A NL 8600862 A NL8600862 A NL 8600862A
Authority
NL
Netherlands
Prior art keywords
input
signal
output
summator
filter
Prior art date
Application number
NL8600862A
Other languages
English (en)
Dutch (nl)
Original Assignee
Philips Nv
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 Philips Nv filed Critical Philips Nv
Priority to NL8600862A priority Critical patent/NL8600862A/nl
Priority to US06/920,490 priority patent/US4692737A/en
Priority to DE8787200562T priority patent/DE3773033D1/de
Priority to EP87200562A priority patent/EP0241077B1/fr
Priority to CN87102565A priority patent/CN1006672B/zh
Priority to KR1019870003092A priority patent/KR950007465B1/ko
Priority to JP62082234A priority patent/JPS62239618A/ja
Publication of NL8600862A publication Critical patent/NL8600862A/nl

Links

Classifications

    • H—ELECTRICITY
    • H03—ELECTRONIC CIRCUITRY
    • H03M—CODING; DECODING; CODE CONVERSION IN GENERAL
    • H03M1/00—Analogue/digital conversion; Digital/analogue conversion
    • 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
    • H03M3/39—Structural details of delta-sigma modulators, e.g. incremental delta-sigma modulators
    • H03M3/436—Structural details of delta-sigma modulators, e.g. incremental delta-sigma modulators characterised by the order of the loop filter, e.g. error feedback type
    • H03M3/438—Structural details of delta-sigma modulators, e.g. incremental delta-sigma modulators characterised by the order of the loop filter, e.g. error feedback type the modulator having a higher order loop filter in the feedforward path
    • H03M3/44—Structural details of delta-sigma modulators, e.g. incremental delta-sigma modulators characterised by the order of the loop filter, e.g. error feedback type the modulator having a higher order loop filter in the feedforward path with provisions for rendering the modulator inherently stable
    • H03M3/442—Structural details of delta-sigma modulators, e.g. incremental delta-sigma modulators characterised by the order of the loop filter, e.g. error feedback type the modulator having a higher order loop filter in the feedforward path with provisions for rendering the modulator inherently stable by restricting the swing within the loop, e.g. gain scaling
    • H03M3/444—Structural details of delta-sigma modulators, e.g. incremental delta-sigma modulators characterised by the order of the loop filter, e.g. error feedback type the modulator having a higher order loop filter in the feedforward path with provisions for rendering the modulator inherently stable by restricting the swing within the loop, e.g. gain scaling using non-linear elements, e.g. limiters
    • 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
    • H03M3/39—Structural details of delta-sigma modulators, e.g. incremental delta-sigma modulators
    • H03M3/412—Structural details of delta-sigma modulators, e.g. incremental delta-sigma modulators characterised by the number of quantisers and their type and resolution
    • H03M3/422—Structural details of delta-sigma modulators, e.g. incremental delta-sigma modulators characterised by the number of quantisers and their type and resolution having one quantiser only
    • H03M3/43—Structural details of delta-sigma modulators, e.g. incremental 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
    • H03M3/00—Conversion of analogue values to or from differential modulation
    • H03M3/30—Delta-sigma modulation
    • H03M3/39—Structural details of delta-sigma modulators, e.g. incremental delta-sigma modulators
    • H03M3/436—Structural details of delta-sigma modulators, e.g. incremental delta-sigma modulators characterised by the order of the loop filter, e.g. error feedback type
    • 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
    • H03M3/39—Structural details of delta-sigma modulators, e.g. incremental delta-sigma modulators
    • H03M3/436—Structural details of delta-sigma modulators, e.g. incremental delta-sigma modulators characterised by the order of the loop filter, e.g. error feedback type
    • H03M3/456—Structural details of delta-sigma modulators, e.g. incremental delta-sigma modulators characterised by the order of the loop filter, e.g. error feedback type the modulator having a first order loop filter in the feedforward path

Landscapes

  • Engineering & Computer Science (AREA)
  • Theoretical Computer Science (AREA)
  • Physics & Mathematics (AREA)
  • Nonlinear Science (AREA)
  • Compression, Expansion, Code Conversion, And Decoders (AREA)
  • Analogue/Digital Conversion (AREA)
NL8600862A 1986-04-04 1986-04-04 Kodeerinrichting. NL8600862A (nl)

Priority Applications (7)

Application Number Priority Date Filing Date Title
NL8600862A NL8600862A (nl) 1986-04-04 1986-04-04 Kodeerinrichting.
US06/920,490 US4692737A (en) 1986-04-04 1986-10-17 Encoding device
DE8787200562T DE3773033D1 (de) 1986-04-04 1987-03-24 Kodierungsvorrichtung.
EP87200562A EP0241077B1 (fr) 1986-04-04 1987-03-24 Dispositif d'encodage
CN87102565A CN1006672B (zh) 1986-04-04 1987-04-01 编码装置
KR1019870003092A KR950007465B1 (ko) 1986-04-04 1987-04-01 엔코딩 장치 및 이를 구비한 아나로그-디지탈 및 디지탈-아나로그 변환기
JP62082234A JPS62239618A (ja) 1986-04-04 1987-04-04 符号化装置

Applications Claiming Priority (2)

Application Number Priority Date Filing Date Title
NL8600862 1986-04-04
NL8600862A NL8600862A (nl) 1986-04-04 1986-04-04 Kodeerinrichting.

Publications (1)

Publication Number Publication Date
NL8600862A true NL8600862A (nl) 1987-11-02

Family

ID=19847830

Family Applications (1)

Application Number Title Priority Date Filing Date
NL8600862A NL8600862A (nl) 1986-04-04 1986-04-04 Kodeerinrichting.

Country Status (7)

Country Link
US (1) US4692737A (fr)
EP (1) EP0241077B1 (fr)
JP (1) JPS62239618A (fr)
KR (1) KR950007465B1 (fr)
CN (1) CN1006672B (fr)
DE (1) DE3773033D1 (fr)
NL (1) NL8600862A (fr)

Families Citing this family (33)

* Cited by examiner, † Cited by third party
Publication number Priority date Publication date Assignee Title
DE3642168A1 (de) * 1986-12-10 1988-06-16 Philips Patentverwaltung Digitale schaltungsanordnung zur verringerung des quantisierungsrauschens
JP2753126B2 (ja) * 1990-09-20 1998-05-18 株式会社東芝 ディジタル・シグマデルタ変調器
NL9100379A (nl) * 1991-03-01 1992-10-01 Philips Nv Sigma-deltamodulator.
US5140325A (en) * 1991-05-14 1992-08-18 Industrial Technology Research Institute Sigma-delta analog-to-digital converters based on switched-capacitor differentiators and delays
KR930020844A (ko) * 1992-03-30 1993-10-20 사토 후미오 다채널 디지탈 시그마 델타변조기
DE69431223T2 (de) * 1993-06-29 2006-03-02 Sony Corp. Gerät und Verfahren zur Tonsignalübertragung
US5602874A (en) * 1994-12-29 1997-02-11 Motorola, Inc. Method and apparatus for reducing quantization noise
US7228109B2 (en) * 2001-01-12 2007-06-05 Silicon Laboratories Inc. DC offset reduction in radio-frequency apparatus and associated methods
US7035607B2 (en) 1998-05-29 2006-04-25 Silicon Laboratories Inc. Systems and methods for providing an adjustable reference signal to RF circuitry
US7242912B2 (en) 1998-05-29 2007-07-10 Silicon Laboratories Inc. Partitioning of radio-frequency apparatus
US7024221B2 (en) * 2001-01-12 2006-04-04 Silicon Laboratories Inc. Notch filter for DC offset reduction in radio-frequency apparatus and associated methods
US6804497B2 (en) * 2001-01-12 2004-10-12 Silicon Laboratories, Inc. Partitioned radio-frequency apparatus and associated methods
US7221921B2 (en) 1998-05-29 2007-05-22 Silicon Laboratories Partitioning of radio-frequency apparatus
US7092675B2 (en) * 1998-05-29 2006-08-15 Silicon Laboratories Apparatus and methods for generating radio frequencies in communication circuitry using multiple control signals
US6970717B2 (en) 2001-01-12 2005-11-29 Silicon Laboratories Inc. Digital architecture for radio-frequency apparatus and associated methods
US6993314B2 (en) 1998-05-29 2006-01-31 Silicon Laboratories Inc. Apparatus for generating multiple radio frequencies in communication circuitry and associated methods
DE19854124C1 (de) * 1998-11-24 2000-08-24 Bosch Gmbh Robert Sigma-Delta D/A-Wandler
US6903617B2 (en) 2000-05-25 2005-06-07 Silicon Laboratories Inc. Method and apparatus for synthesizing high-frequency signals for wireless communications
US7138858B2 (en) 2001-01-12 2006-11-21 Silicon Laboratories, Inc. Apparatus and methods for output buffer circuitry with constant output power in radio-frequency circuitry
US7035611B2 (en) * 2001-01-12 2006-04-25 Silicon Laboratories Inc. Apparatus and method for front-end circuitry in radio-frequency apparatus
US7158574B2 (en) * 2001-01-12 2007-01-02 Silicon Laboratories Inc. Digital interface in radio-frequency apparatus and associated methods
US7031683B2 (en) * 2001-01-12 2006-04-18 Silicon Laboratories Inc. Apparatus and methods for calibrating signal-processing circuitry
US7177610B2 (en) * 2001-01-12 2007-02-13 Silicon Laboratories Inc. Calibrated low-noise current and voltage references and associated methods
US20030232613A1 (en) * 2001-01-12 2003-12-18 Kerth Donald A. Quadrature signal generation in radio-frequency apparatus and associated methods
EP1486079B1 (fr) * 2002-03-15 2015-12-30 Silicon Laboratories Inc. Appareil radiofrequence
GB2408858B (en) * 2003-12-05 2006-11-29 Wolfson Ltd Word length reduction circuit
US6956513B1 (en) * 2004-10-22 2005-10-18 Broadcom Corporation Error feedback structure for delta-sigma modulators with improved stability
US7714675B2 (en) * 2006-12-05 2010-05-11 Broadcom Corporation All digital Class-D modulator and its saturation protection techniques
WO2011103928A1 (fr) * 2010-02-26 2011-09-01 Telefonaktiebolaget Lm Ericsson (Publ) Unité de commande numérique prédictive pour alimentation à découpage et procédé correspondant
CN104106203B (zh) 2012-02-17 2017-09-29 瑞典爱立信有限公司 开关模式电源的电压前馈补偿和电压反馈补偿
CN105264777B (zh) * 2013-04-09 2019-07-09 美国思睿逻辑有限公司 用于在数字麦克风系统中压缩数字信号的系统及方法
CN104601142A (zh) * 2013-10-31 2015-05-06 横河电机株式会社 滤波方法、滤波器和闪变测试系统
US10116323B2 (en) * 2016-12-16 2018-10-30 Mediatek Inc. Analog-to-digital converter

Family Cites Families (4)

* Cited by examiner, † Cited by third party
Publication number Priority date Publication date Assignee Title
US3624558A (en) * 1970-01-16 1971-11-30 Bell Telephone Labor Inc Delta modulation encoder having double integration
JPS5120148B1 (fr) * 1971-05-19 1976-06-23
US4035724A (en) * 1974-05-08 1977-07-12 Universite De Sherbrooke Digital converter from continuous variable slope delta modulation to pulse code modulation
US4017849A (en) * 1975-08-28 1977-04-12 Bell Telephone Laboratories, Incorporated Apparatus for analog to digital conversion

Also Published As

Publication number Publication date
JPS62239618A (ja) 1987-10-20
US4692737A (en) 1987-09-08
EP0241077A1 (fr) 1987-10-14
EP0241077B1 (fr) 1991-09-18
DE3773033D1 (de) 1991-10-24
KR950007465B1 (ko) 1995-07-11
CN1006672B (zh) 1990-01-31
CN87102565A (zh) 1987-10-14
KR870010696A (ko) 1987-11-30

Similar Documents

Publication Publication Date Title
NL8600862A (nl) Kodeerinrichting.
US5870048A (en) Oversampling sigma-delta modulator
EP0429217B1 (fr) Synthétiseur de fréquence
US5061928A (en) System and method of scaling error signals of caseload second order modulators
US5416481A (en) Analog-to-digital converter with multi-level dither current input
US5148167A (en) Sigma-delta oversampled analog-to-digital converter network with chopper stabilization
KR100373598B1 (ko) 오버샘플링된하이-오더변조기
JP3179929B2 (ja) シグマ‐デルタ変調器
KR910009070B1 (ko) 델타(delta)-시그마(sigma) 변조기
US5369403A (en) Dual quantization oversampling digital-to-analog converter
EP0454407A2 (fr) Convertisseur analogique-numérique de type sigma-delta à plusieurs étages
US20030146865A1 (en) Adaptive sigma-delta modulation with one-bit quantization
EP0658008A2 (fr) Convertisseur analogique-numérique du type sigma-delta avec compensation de la rétroaction et méthode de réalisation
CA2042213A1 (fr) Modulateurs interpolateurs a doublage de la frequence d'echantillonnage pour la conversion analogique-numerique
EP0988704B1 (fr) Conversion analogique-numerique au moyen d'une entree ou de valeurs intermediaires modulees en frequence
NL7811731A (nl) (b+a)-bits-a/d-omzetter met b-bits-hulp-a/d-omzetter.
WO1998002838A1 (fr) Appareil de multiplication a quatre quadrants et methode y relative
JPH06237176A (ja) 三次シグマ−デルタ・アナログ−デジタル変換器回路網
US5355134A (en) Digital to analog converter circuit
US5621407A (en) Digital/analog converter
US6278392B1 (en) Gain adjustable sigma delta modulator system
JPH0376318A (ja) ディジタル／アナログ変換器またはアナログ／ディジタル変換器におけるデルタシグマ変調回路
JP3074301B2 (ja) 向上したオ―バサンプリングシグマ―デルタ変調器
JPH08139607A (ja) デルタシグマ変調器のａｌｃ回路
KR100214272B1 (ko) 16-비트 오디오 아날로그-디지탈 변환기용 4차 ∑△변조기

Legal Events

Date Code Title Description
A1B A search report has been drawn up
BV The patent application has lapsed