CN1112777C - 信号处理方法和装置 - Google Patents

信号处理方法和装置 Download PDF

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Publication number
CN1112777C
CN1112777C CN98804731A CN98804731A CN1112777C CN 1112777 C CN1112777 C CN 1112777C CN 98804731 A CN98804731 A CN 98804731A CN 98804731 A CN98804731 A CN 98804731A CN 1112777 C CN1112777 C CN 1112777C
Authority
CN
China
Prior art keywords
signal
sigma
modulator
delta modulator
pulse density
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
CN98804731A
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English (en)
Chinese (zh)
Other versions
CN1256037A (zh
Inventor
L·利帕斯提
A·科瓦伦
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.)
Atmel Corp
Original Assignee
Atmel 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 Atmel Corp filed Critical Atmel Corp
Publication of CN1256037A publication Critical patent/CN1256037A/zh
Application granted granted Critical
Publication of CN1112777C publication Critical patent/CN1112777C/zh
Anticipated expiration legal-status Critical
Expired - Fee Related legal-status Critical Current

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    • H—ELECTRICITY
    • H03—ELECTRONIC CIRCUITRY
    • H03M—CODING; DECODING; CODE CONVERSION IN GENERAL
    • H03M3/00—Conversion of analogue values to or from differential modulation
    • 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
    • H03M3/458—Analogue/digital converters using delta-sigma modulation as an intermediate step
    • 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

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  • Engineering & Computer Science (AREA)
  • Theoretical Computer Science (AREA)
  • Compression, Expansion, Code Conversion, And Decoders (AREA)
  • Analogue/Digital Conversion (AREA)
CN98804731A 1997-10-09 1998-08-26 信号处理方法和装置 Expired - Fee Related CN1112777C (zh)

Applications Claiming Priority (2)

Application Number Priority Date Filing Date Title
FI973919A FI103745B1 (fi) 1997-10-09 1997-10-09 Signaalinkäsittelymenetelmä ja -laite
FI973919 1997-10-09

Publications (2)

Publication Number Publication Date
CN1256037A CN1256037A (zh) 2000-06-07
CN1112777C true CN1112777C (zh) 2003-06-25

Family

ID=8549695

Family Applications (1)

Application Number Title Priority Date Filing Date
CN98804731A Expired - Fee Related CN1112777C (zh) 1997-10-09 1998-08-26 信号处理方法和装置

Country Status (11)

Country Link
EP (1) EP1021876A4 (no)
JP (1) JP2002510455A (no)
KR (1) KR20010012348A (no)
CN (1) CN1112777C (no)
CA (1) CA2274637A1 (no)
FI (1) FI103745B1 (no)
HK (1) HK1025695A1 (no)
MY (1) MY133001A (no)
NO (1) NO992777L (no)
TW (1) TW408531B (no)
WO (1) WO1999020004A1 (no)

Families Citing this family (6)

* Cited by examiner, † Cited by third party
Publication number Priority date Publication date Assignee Title
CN1195353C (zh) * 2001-12-03 2005-03-30 方虎堂 脉冲面积调制数字功率处理方法及装置
US6606044B2 (en) 2002-01-02 2003-08-12 Motorola, Inc. Method and apparatus for generating a pulse width modulated signal
KR101853818B1 (ko) 2011-07-29 2018-06-15 삼성전자주식회사 오디오 신호 처리 방법 및 그에 따른 오디오 신호 처리 장치
EP2927805A1 (en) * 2014-03-31 2015-10-07 Nxp B.V. Control system
TWI559202B (zh) * 2014-10-01 2016-11-21 義隆電子股份有限公司 電容式觸控裝置及其刺激訊號產生電路與方法
CN110310635B (zh) * 2019-06-24 2022-03-22 Oppo广东移动通信有限公司 语音处理电路及电子设备

Family Cites Families (7)

* Cited by examiner, † Cited by third party
Publication number Priority date Publication date Assignee Title
JPH01204528A (ja) * 1988-02-10 1989-08-17 Fujitsu Ltd Ａ／ｄ変換器
DE69107059T2 (de) * 1990-01-31 1995-08-24 Analog Devices Inc Sigma-delta-modulator.
US5245344A (en) * 1991-01-15 1993-09-14 Crystal Semiconductor High order switched-capacitor filter with dac input
US5625358A (en) * 1993-09-13 1997-04-29 Analog Devices, Inc. Digital phase-locked loop utilizing a high order sigma-delta modulator
US5442353A (en) * 1993-10-25 1995-08-15 Motorola, Inc. Bandpass sigma-delta analog-to-digital converter (ADC), method therefor, and receiver using same
US5748126A (en) * 1996-03-08 1998-05-05 S3 Incorporated Sigma-delta digital-to-analog conversion system and process through reconstruction and resampling
JPH09266447A (ja) * 1996-03-28 1997-10-07 Sony Corp 語長変換装置及びデータ処理装置

Also Published As

Publication number Publication date
CN1256037A (zh) 2000-06-07
CA2274637A1 (en) 1999-04-22
NO992777L (no) 1999-07-28
KR20010012348A (ko) 2001-02-15
MY133001A (en) 2007-10-31
EP1021876A1 (en) 2000-07-26
FI103745B (fi) 1999-08-31
WO1999020004A1 (en) 1999-04-22
TW408531B (en) 2000-10-11
FI103745B1 (fi) 1999-08-31
FI973919A (fi) 1999-04-10
JP2002510455A (ja) 2002-04-02
NO992777D0 (no) 1999-06-08
EP1021876A4 (en) 2003-05-02
FI973919A0 (fi) 1997-10-09
HK1025695A1 (en) 2000-11-17

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C06 Publication
PB01 Publication
C10 Entry into substantive examination
SE01 Entry into force of request for substantive examination
C14 Grant of patent or utility model
GR01 Patent grant
C56 Change in the name or address of the patentee
CP03 Change of name, title or address

Address after: American California

Patentee after: Atmel Corp.

Address before: American California

Patentee before: Atmel Corporation

C17 Cessation of patent right
CF01 Termination of patent right due to non-payment of annual fee

Granted publication date: 20030625

Termination date: 20130826