DE602004018159D1 - Datenumsetzer mit ternärimpulsbreitenmodulations-ausgangsstufen und verfahren und systeme damit - Google Patents
Datenumsetzer mit ternärimpulsbreitenmodulations-ausgangsstufen und verfahren und systeme damitInfo
- Publication number
- DE602004018159D1 DE602004018159D1 DE602004018159T DE602004018159T DE602004018159D1 DE 602004018159 D1 DE602004018159 D1 DE 602004018159D1 DE 602004018159 T DE602004018159 T DE 602004018159T DE 602004018159 T DE602004018159 T DE 602004018159T DE 602004018159 D1 DE602004018159 D1 DE 602004018159D1
- Authority
- DE
- Germany
- Prior art keywords
- pulse width
- width modulated
- width modulation
- modulated stream
- data transmitter
- 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
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
- H03M3/50—Digital/analogue converters using delta-sigma modulation as an intermediate step
- H03M3/502—Details of the final digital/analogue conversion following the digital delta-sigma modulation
- H03M3/506—Details of the final digital/analogue conversion following the digital delta-sigma modulation the final digital/analogue converter being constituted by a pulse width modulator
Landscapes
- Engineering & Computer Science (AREA)
- Theoretical Computer Science (AREA)
- Compression, Expansion, Code Conversion, And Decoders (AREA)
- Dc Digital Transmission (AREA)
- Analogue/Digital Conversion (AREA)
Applications Claiming Priority (2)
Application Number | Priority Date | Filing Date | Title |
---|---|---|---|
US10/656,749 US6885330B2 (en) | 2003-09-05 | 2003-09-05 | Data converters with ternary pulse width modulation output stages and methods and systems using the same |
PCT/US2004/028317 WO2005027350A1 (en) | 2003-09-05 | 2004-09-01 | Data converters with ternary pulse width modulation output stages and methods and systems using the same |
Publications (1)
Publication Number | Publication Date |
---|---|
DE602004018159D1 true DE602004018159D1 (de) | 2009-01-15 |
Family
ID=34226419
Family Applications (1)
Application Number | Title | Priority Date | Filing Date |
---|---|---|---|
DE602004018159T Expired - Fee Related DE602004018159D1 (de) | 2003-09-05 | 2004-09-01 | Datenumsetzer mit ternärimpulsbreitenmodulations-ausgangsstufen und verfahren und systeme damit |
Country Status (6)
Country | Link |
---|---|
US (1) | US6885330B2 (de) |
EP (1) | EP1661251B1 (de) |
JP (1) | JP2007504754A (de) |
AT (1) | ATE416513T1 (de) |
DE (1) | DE602004018159D1 (de) |
WO (1) | WO2005027350A1 (de) |
Families Citing this family (30)
Publication number | Priority date | Publication date | Assignee | Title |
---|---|---|---|---|
GB2408858B (en) * | 2003-12-05 | 2006-11-29 | Wolfson Ltd | Word length reduction circuit |
US7049992B1 (en) * | 2004-10-29 | 2006-05-23 | Agilent Technologies, Inc. | Sample rate doubling using alternating ADCs |
US7817743B2 (en) * | 2004-12-22 | 2010-10-19 | Rambus Inc. | Multi-tone system with oversampled precoders |
US8509321B2 (en) * | 2004-12-23 | 2013-08-13 | Rambus Inc. | Simultaneous bi-directional link |
US7570693B2 (en) * | 2005-09-26 | 2009-08-04 | Ess Technology, Inc. | Low noise digital to pulse width modulated converter with audio applications |
US7327295B1 (en) | 2005-10-24 | 2008-02-05 | Cirrus Logic, Inc. | Constant edge-rate ternary output consecutive-edge modulator (CEM) method and apparatus |
US7209067B1 (en) | 2005-12-08 | 2007-04-24 | Cirrus Logic, Inc. | Extended dynamic range consecutive edge modulation (CEM) method and apparatus |
US7167118B1 (en) | 2005-12-08 | 2007-01-23 | Cirrus Logic, Inc. | Centered-pulse consecutive edge modulation (CEM) method and apparatus |
US7307565B1 (en) * | 2005-12-22 | 2007-12-11 | Cirrus Logic, Inc. | Signal processing system with delta-sigma modulation and FIR filter post processing to reduce near out of band noise |
US7327296B1 (en) * | 2006-03-03 | 2008-02-05 | Cirrus Logic, Inc. | Signal processing system with modified delta sigma modulator quantizer output signals to spread harmonic frequencies of pulse width modulator output signals |
JP4707742B2 (ja) | 2006-05-21 | 2011-06-22 | 株式会社 Trigence Semiconductor | デジタルアナログ変換装置 |
US7696913B2 (en) | 2007-05-02 | 2010-04-13 | Cirrus Logic, Inc. | Signal processing system using delta-sigma modulation having an internal stabilizer path with direct output-to-integrator connection |
US7535396B1 (en) | 2008-03-20 | 2009-05-19 | Cirrus Logic, Inc. | Digital-to-analog converter (DAC) having filter sections with differing polarity |
JP5552620B2 (ja) | 2008-06-16 | 2014-07-16 | 株式会社 Trigence Semiconductor | デジタルスピーカー駆動装置と集中制御装置とを搭載した自動車 |
US8169389B2 (en) | 2008-07-16 | 2012-05-01 | Global Oled Technology Llc | Converting three-component to four-component image |
EP2340613B1 (de) * | 2008-10-23 | 2013-09-04 | Nxp B.V. | Sigma-delta-modulator |
EP2391014B1 (de) | 2009-12-09 | 2017-12-27 | Trigence Semiconductor, Inc. | Auswahlvorrichtung |
JP5748657B2 (ja) * | 2009-12-16 | 2015-07-15 | 株式会社 Trigence Semiconductor | 音響システム |
US8144043B2 (en) * | 2010-04-28 | 2012-03-27 | Texas Instruments Incorporated | Shaping inter-symbol-interference in sigma delta converter |
US20120018615A1 (en) * | 2010-07-22 | 2012-01-26 | Azad Siahmakoun | Photonic second-order delta-sigma modulator |
US8860597B2 (en) * | 2011-07-06 | 2014-10-14 | Qualcomm Incorporated | Digital to-analog converter circuitry with weighted resistance elements |
JP5915459B2 (ja) | 2012-02-20 | 2016-05-11 | 住友電気工業株式会社 | 信号変換方法、信号送信方法、信号変換装置、及び送信機 |
CN102684701B (zh) * | 2012-04-27 | 2014-07-09 | 苏州上声电子有限公司 | 基于编码转换的数字扬声器驱动方法和装置 |
US9484968B2 (en) * | 2012-10-12 | 2016-11-01 | Innoventure L.P. | Post conversion mixing |
JP5958884B2 (ja) * | 2014-03-20 | 2016-08-02 | カシオ計算機株式会社 | D/a変換装置、d/a変換方法及び電子楽器 |
US9660632B1 (en) | 2015-12-16 | 2017-05-23 | Cirrus Logic, Inc. | Adjustable time duration for driving pulse-width modulation (PWM) output to reduce thermal noise |
NL2016605B1 (en) | 2016-04-14 | 2017-11-02 | Axign B V | Digital audio converter and amplifier controller. |
US10418044B2 (en) | 2017-01-30 | 2019-09-17 | Cirrus Logic, Inc. | Converting a single-bit audio stream to a single-bit audio stream with a constant edge rate |
NL2018617B1 (en) | 2017-03-30 | 2018-10-10 | Axign B V | Intra ear canal hearing aid |
US9941897B1 (en) * | 2017-08-31 | 2018-04-10 | Analog Devices Global | Digital-to-analog converter with improved linearity |
Family Cites Families (8)
Publication number | Priority date | Publication date | Assignee | Title |
---|---|---|---|---|
JPH0787375B2 (ja) * | 1988-09-29 | 1995-09-20 | 日本ビクター株式会社 | Pwm型d/a変換器 |
JPH02214224A (ja) * | 1989-02-14 | 1990-08-27 | Sony Corp | ディジタル・アナログ変換器 |
US5990735A (en) * | 1997-07-02 | 1999-11-23 | Motorola, Inc. | Method and apparatus for high efficiency power amplification |
US6693571B2 (en) * | 2000-05-10 | 2004-02-17 | Cirrus Logic, Inc. | Modulation of a digital input signal using a digital signal modulator and signal splitting |
US6373334B1 (en) * | 2000-06-12 | 2002-04-16 | Cirrus Logic, Inc. | Real time correction of a digital PWM amplifier |
US6529074B1 (en) * | 2001-07-26 | 2003-03-04 | Cirrus Logic, Inc. | Circuits and methods for output impedance matching in switched mode circuits |
US6593806B1 (en) * | 2001-08-10 | 2003-07-15 | Cirrus Logic, Inc. | Circuits and methods for compensating switched mode amplifiers |
US6738003B2 (en) | 2002-07-08 | 2004-05-18 | Cirrus Logic, Inc. | Delta-sigma modulation circuits and methods utilizing multiple noise attenuation bands and data converters using the same |
-
2003
- 2003-09-05 US US10/656,749 patent/US6885330B2/en not_active Expired - Lifetime
-
2004
- 2004-09-01 AT AT04782742T patent/ATE416513T1/de not_active IP Right Cessation
- 2004-09-01 DE DE602004018159T patent/DE602004018159D1/de not_active Expired - Fee Related
- 2004-09-01 EP EP04782742A patent/EP1661251B1/de active Active
- 2004-09-01 JP JP2006525398A patent/JP2007504754A/ja active Pending
- 2004-09-01 WO PCT/US2004/028317 patent/WO2005027350A1/en active Application Filing
Also Published As
Publication number | Publication date |
---|---|
EP1661251A1 (de) | 2006-05-31 |
ATE416513T1 (de) | 2008-12-15 |
JP2007504754A (ja) | 2007-03-01 |
US20050052304A1 (en) | 2005-03-10 |
WO2005027350A1 (en) | 2005-03-24 |
US6885330B2 (en) | 2005-04-26 |
EP1661251B1 (de) | 2008-12-03 |
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Legal Events
Date | Code | Title | Description |
---|---|---|---|
8364 | No opposition during term of opposition | ||
8339 | Ceased/non-payment of the annual fee |