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/de
Priority to KR1019870003092A priority patent/KR950007465B1/ko
Priority to CN87102565A priority patent/CN1006672B/zh
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 (de) 1986-04-04 1987-03-24 Kodierungsvorrichtung
KR1019870003092A KR950007465B1 (ko) 1986-04-04 1987-04-01 엔코딩 장치 및 이를 구비한 아나로그-디지탈 및 디지탈-아나로그 변환기
CN87102565A CN1006672B (zh) 1986-04-04 1987-04-01 编码装置
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
NL8600862A NL8600862A (nl) 1986-04-04 1986-04-04 Kodeerinrichting.
NL8600862 1986-04-04

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 (de)
EP (1) EP0241077B1 (de)
JP (1) JPS62239618A (de)
KR (1) KR950007465B1 (de)
CN (1) CN1006672B (de)
DE (1) DE3773033D1 (de)
NL (1) NL8600862A (de)

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
US5345233A (en) * 1992-03-30 1994-09-06 Kabushiki Kaisha Toshiba Digital Σ-Δ modulator
EP0632597B1 (de) * 1993-06-29 2002-08-28 Sony Corporation Gerät und Verfahren zur Tonsignalübertragung
US5602874A (en) * 1994-12-29 1997-02-11 Motorola, Inc. Method and apparatus for reducing quantization noise
US6993314B2 (en) 1998-05-29 2006-01-31 Silicon Laboratories Inc. Apparatus for generating multiple radio frequencies in communication circuitry and associated methods
US7228109B2 (en) * 2001-01-12 2007-06-05 Silicon Laboratories Inc. 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
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
US7092675B2 (en) * 1998-05-29 2006-08-15 Silicon Laboratories Apparatus and methods for generating radio frequencies in communication circuitry using multiple control signals
US7035607B2 (en) * 1998-05-29 2006-04-25 Silicon Laboratories Inc. Systems and methods for providing an adjustable reference signal to RF circuitry
US6970717B2 (en) 2001-01-12 2005-11-29 Silicon Laboratories Inc. Digital architecture for radio-frequency apparatus and associated methods
US7221921B2 (en) 1998-05-29 2007-05-22 Silicon Laboratories Partitioning of radio-frequency apparatus
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
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
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
AU2003220281A1 (en) * 2002-03-15 2003-09-29 Silicon Laboratories Inc. Radio-frequency apparatus and associated methods
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 (en) * 2010-02-26 2011-09-01 Telefonaktiebolaget Lm Ericsson (Publ) Feedforward digital control unit for switched mode power supply and method thereof
US9397578B2 (en) 2012-02-17 2016-07-19 Telefonaktiebolaget L M Ericsson (Publ) Voltage feed-forward compensation and voltage feedback compensation for switched mode power supplies
US9332345B1 (en) * 2013-04-09 2016-05-03 Cirrus Logic, Inc. Use of microphone capacitance as a switched capacitor in an input network of a delta-sigma modulator
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 (de) * 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
KR950007465B1 (ko) 1995-07-11
US4692737A (en) 1987-09-08
JPS62239618A (ja) 1987-10-20
KR870010696A (ko) 1987-11-30
CN87102565A (zh) 1987-10-14
EP0241077A1 (de) 1987-10-14
EP0241077B1 (de) 1991-09-18
CN1006672B (zh) 1990-01-31
DE3773033D1 (de) 1991-10-24

Similar Documents

Publication Publication Date Title
NL8600862A (nl) Kodeerinrichting.
US5870048A (en) Oversampling sigma-delta modulator
EP0429217B1 (de) Frequenzsynthesizer
US5061928A (en) System and method of scaling error signals of caseload second order modulators
US5148166A (en) Third order sigma delta oversampled analog-to-digital converter network with low component sensitivity
JP3179929B2 (ja) シグマ‐デルタ変調器
US5148167A (en) Sigma-delta oversampled analog-to-digital converter network with chopper stabilization
US5416481A (en) Analog-to-digital converter with multi-level dither current input
KR100373598B1 (ko) 오버샘플링된하이-오더변조기
KR910009070B1 (ko) 델타(delta)-시그마(sigma) 변조기
US5369403A (en) Dual quantization oversampling digital-to-analog converter
EP0454407A2 (de) Mehrstufiger Sigma-deltaanalog/digitalumsetzer
EP0658008A2 (de) Sigma-Delta Analog-Digitalwandler (ADC) mit Rückkopplungskompensation und zugehöriges Verfahren
CA2042213A1 (en) Double rate oversampled interpolative modulators for analog-to-digital conversion
HU187522B (en) Delta-sygma modulator with switched condensers
US20040196169A1 (en) Adaptive sigma-delta modulation
Przybysz et al. Josephson sigma-delta modulator for high dynamic range A/D conversion
EP0988704B1 (de) Analog-digital-wandlung mit hilfe von frequenzmodulierten eingangs- oder zwischenwerten
NL7811731A (nl) (b+a)-bits-a/d-omzetter met b-bits-hulp-a/d-omzetter.
JPH05206957A (ja) シグマデルタ変換器の分割フィルタ及び同前を用いるアナログ／ディジタル変換器
JPH06237176A (ja) 三次シグマ−デルタ・アナログ−デジタル変換器回路網
US6278392B1 (en) Gain adjustable sigma delta modulator system
JPH07143006A (ja) デルタシグマ型ａ／ｄコンバータ
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

Legal Events

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