HK1025695A1 - Signal processing method and device - Google Patents
Signal processing method and deviceInfo
- Publication number
- HK1025695A1 HK1025695A1 HK00104859A HK00104859A HK1025695A1 HK 1025695 A1 HK1025695 A1 HK 1025695A1 HK 00104859 A HK00104859 A HK 00104859A HK 00104859 A HK00104859 A HK 00104859A HK 1025695 A1 HK1025695 A1 HK 1025695A1
- Authority
- HK
- Hong Kong
- Prior art keywords
- signal
- sigma
- delta modulator
- pdm
- noise ratio
- Prior art date
Links
Classifications
-
- 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
- H03M3/00—Conversion of analogue values 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
- H03M7/302—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
Landscapes
- Engineering & Computer Science (AREA)
- Theoretical Computer Science (AREA)
- Compression, Expansion, Code Conversion, And Decoders (AREA)
- Analogue/Digital Conversion (AREA)
Applications Claiming Priority (2)
Application Number | Priority Date | Filing Date | Title |
---|---|---|---|
FI973919A FI103745B1 (fi) | 1997-10-09 | 1997-10-09 | Signaalinkäsittelymenetelmä ja -laite |
PCT/US1998/017743 WO1999020004A1 (en) | 1997-10-09 | 1998-08-26 | Signal processing method and device |
Publications (1)
Publication Number | Publication Date |
---|---|
HK1025695A1 true HK1025695A1 (en) | 2000-11-17 |
Family
ID=8549695
Family Applications (1)
Application Number | Title | Priority Date | Filing Date |
---|---|---|---|
HK00104859A HK1025695A1 (en) | 1997-10-09 | 2000-08-03 | Signal processing method and device |
Country Status (11)
Country | Link |
---|---|
EP (1) | EP1021876A4 (zh) |
JP (1) | JP2002510455A (zh) |
KR (1) | KR20010012348A (zh) |
CN (1) | CN1112777C (zh) |
CA (1) | CA2274637A1 (zh) |
FI (1) | FI103745B1 (zh) |
HK (1) | HK1025695A1 (zh) |
MY (1) | MY133001A (zh) |
NO (1) | NO992777L (zh) |
TW (1) | TW408531B (zh) |
WO (1) | WO1999020004A1 (zh) |
Families Citing this family (7)
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 |
US11303295B1 (en) * | 2020-11-15 | 2022-04-12 | xMEMS Labs, Inc. | SDM encoder and related signal processing system |
Family Cites Families (7)
Publication number | Priority date | Publication date | Assignee | Title |
---|---|---|---|---|
JPH01204528A (ja) * | 1988-02-10 | 1989-08-17 | Fujitsu Ltd | A/d変換器 |
JPH05505287A (ja) * | 1990-01-31 | 1993-08-05 | アナログ・ディバイセス・インコーポレーテッド | シグマデルタ変調器 |
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 |
-
1997
- 1997-10-09 FI FI973919A patent/FI103745B1/fi active
-
1998
- 1998-08-26 JP JP52178599A patent/JP2002510455A/ja not_active Ceased
- 1998-08-26 WO PCT/US1998/017743 patent/WO1999020004A1/en active IP Right Grant
- 1998-08-26 CA CA002274637A patent/CA2274637A1/en not_active Abandoned
- 1998-08-26 KR KR1019997010300A patent/KR20010012348A/ko active IP Right Grant
- 1998-08-26 EP EP98942269A patent/EP1021876A4/en not_active Ceased
- 1998-08-26 CN CN98804731A patent/CN1112777C/zh not_active Expired - Fee Related
- 1998-10-01 MY MYPI98004505A patent/MY133001A/en unknown
- 1998-12-11 TW TW087120605A patent/TW408531B/zh not_active IP Right Cessation
-
1999
- 1999-06-08 NO NO992777A patent/NO992777L/no not_active Application Discontinuation
-
2000
- 2000-08-03 HK HK00104859A patent/HK1025695A1/xx not_active IP Right Cessation
Also Published As
Publication number | Publication date |
---|---|
FI103745B (fi) | 1999-08-31 |
KR20010012348A (ko) | 2001-02-15 |
FI973919A (fi) | 1999-04-10 |
FI103745B1 (fi) | 1999-08-31 |
NO992777D0 (no) | 1999-06-08 |
NO992777L (no) | 1999-07-28 |
CN1112777C (zh) | 2003-06-25 |
FI973919A0 (fi) | 1997-10-09 |
CA2274637A1 (en) | 1999-04-22 |
WO1999020004A1 (en) | 1999-04-22 |
JP2002510455A (ja) | 2002-04-02 |
EP1021876A1 (en) | 2000-07-26 |
EP1021876A4 (en) | 2003-05-02 |
TW408531B (en) | 2000-10-11 |
MY133001A (en) | 2007-10-31 |
CN1256037A (zh) | 2000-06-07 |
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Legal Events
Date | Code | Title | Description |
---|---|---|---|
PF | Patent in force | ||
PC | Patent ceased (i.e. patent has lapsed due to the failure to pay the renewal fee) |
Effective date: 20120826 |