WO2005011181A2 - Device and method for signal processing - Google Patents
Device and method for signal processing Download PDFInfo
- Publication number
- WO2005011181A2 WO2005011181A2 PCT/US2004/023109 US2004023109W WO2005011181A2 WO 2005011181 A2 WO2005011181 A2 WO 2005011181A2 US 2004023109 W US2004023109 W US 2004023109W WO 2005011181 A2 WO2005011181 A2 WO 2005011181A2
- Authority
- WO
- WIPO (PCT)
- Prior art keywords
- signal
- digital
- filter
- signal processor
- modulator
- Prior art date
Links
Classifications
-
- H—ELECTRICITY
- H03—ELECTRONIC CIRCUITRY
- H03F—AMPLIFIERS
- H03F3/00—Amplifiers with only discharge tubes or only semiconductor devices as amplifying elements
- H03F3/38—Dc amplifiers with modulator at input and demodulator at output; Modulators or demodulators specially adapted for use in such amplifiers
-
- H—ELECTRICITY
- H03—ELECTRONIC CIRCUITRY
- H03F—AMPLIFIERS
- H03F3/00—Amplifiers with only discharge tubes or only semiconductor devices as amplifying elements
- H03F3/38—Dc amplifiers with modulator at input and demodulator at output; Modulators or demodulators specially adapted for use in such amplifiers
- H03F3/387—Dc amplifiers with modulator at input and demodulator at output; Modulators or demodulators specially adapted for use in such amplifiers with semiconductor devices only
-
- G—PHYSICS
- G11—INFORMATION STORAGE
- G11B—INFORMATION STORAGE BASED ON RELATIVE MOVEMENT BETWEEN RECORD CARRIER AND TRANSDUCER
- G11B20/00—Signal processing not specific to the method of recording or reproducing; Circuits therefor
- G11B20/10—Digital recording or reproducing
-
- H—ELECTRICITY
- H03—ELECTRONIC CIRCUITRY
- H03F—AMPLIFIERS
- H03F3/00—Amplifiers with only discharge tubes or only semiconductor devices as amplifying elements
- H03F3/20—Power amplifiers, e.g. Class B amplifiers, Class C amplifiers
- H03F3/21—Power amplifiers, e.g. Class B amplifiers, Class C amplifiers with semiconductor devices only
- H03F3/217—Class D power amplifiers; Switching amplifiers
- H03F3/2175—Class D power amplifiers; Switching amplifiers using analogue-digital or digital-analogue conversion
-
- H—ELECTRICITY
- H03—ELECTRONIC CIRCUITRY
- H03F—AMPLIFIERS
- H03F2200/00—Indexing scheme relating to amplifiers
- H03F2200/331—Sigma delta modulation being used in an amplifying circuit
-
- H—ELECTRICITY
- H03—ELECTRONIC CIRCUITRY
- H03F—AMPLIFIERS
- H03F2200/00—Indexing scheme relating to amplifiers
- H03F2200/351—Pulse width modulation being used in an amplifying circuit
Landscapes
- Engineering & Computer Science (AREA)
- Power Engineering (AREA)
- Signal Processing (AREA)
- Compression, Expansion, Code Conversion, And Decoders (AREA)
- Amplifiers (AREA)
- Digital Transmission Methods That Use Modulated Carrier Waves (AREA)
- Dc Digital Transmission (AREA)
Abstract
Description
Claims
Priority Applications (3)
Application Number | Priority Date | Filing Date | Title |
---|---|---|---|
CN2004800268753A CN1853344B (en) | 2003-07-17 | 2004-07-16 | Device and method for signal processing |
JP2006520401A JP2007532033A (en) | 2003-07-17 | 2004-07-16 | Signal processing apparatus and method |
EP04778547A EP1654672A4 (en) | 2003-07-17 | 2004-07-16 | Device and method for signal processing |
Applications Claiming Priority (2)
Application Number | Priority Date | Filing Date | Title |
---|---|---|---|
US10/621,504 | 2003-07-17 | ||
US10/621,504 US7058464B2 (en) | 2003-07-17 | 2003-07-17 | Device and method for signal processing |
Publications (2)
Publication Number | Publication Date |
---|---|
WO2005011181A2 true WO2005011181A2 (en) | 2005-02-03 |
WO2005011181A3 WO2005011181A3 (en) | 2005-05-06 |
Family
ID=34063001
Family Applications (1)
Application Number | Title | Priority Date | Filing Date |
---|---|---|---|
PCT/US2004/023109 WO2005011181A2 (en) | 2003-07-17 | 2004-07-16 | Device and method for signal processing |
Country Status (6)
Country | Link |
---|---|
US (2) | US7058464B2 (en) |
EP (1) | EP1654672A4 (en) |
JP (1) | JP2007532033A (en) |
KR (1) | KR20060039914A (en) |
CN (1) | CN1853344B (en) |
WO (1) | WO2005011181A2 (en) |
Cited By (1)
Publication number | Priority date | Publication date | Assignee | Title |
---|---|---|---|---|
US9374029B2 (en) | 2010-03-25 | 2016-06-21 | Rohm Co., Ltd. | Motor driving circuit |
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US7247955B2 (en) * | 2002-09-06 | 2007-07-24 | Eaton Power Quality Corporation | PWM power supplies using controlled feedback timing and methods of operating same |
US20060140644A1 (en) * | 2004-12-23 | 2006-06-29 | Paolella Arthur C | High performance, high efficiency fiber optic link for analog and RF systems |
TWI282211B (en) * | 2005-01-17 | 2007-06-01 | Realtek Semiconductor Corp | Power amplifier and method for correcting error of output signals thereof |
KR100617960B1 (en) * | 2005-02-24 | 2006-08-30 | 삼성전자주식회사 | Self-oscillation type pulse-width modulation circuit, and method of pulse-width modulation |
FR2887091B1 (en) * | 2005-06-08 | 2007-08-31 | Dolphin Integration Sa | DIGITAL-ANALOG CONVERTER |
US7289050B1 (en) * | 2005-06-27 | 2007-10-30 | Qualcomm Incorporated | Amplification method and apparatus |
KR101001115B1 (en) * | 2005-06-27 | 2010-12-14 | 퀄컴 인코포레이티드 | Methods and apparatus for implementing and using amplifiers for performing various amplification related operations |
US7262658B2 (en) * | 2005-07-29 | 2007-08-28 | Texas Instruments Incorporated | Class-D amplifier system |
US7138935B1 (en) * | 2005-09-26 | 2006-11-21 | Ess Technology, Inc. | Low noise digital to signal interval converter with audio applications |
US7570693B2 (en) * | 2005-09-26 | 2009-08-04 | Ess Technology, Inc. | Low noise digital to pulse width modulated converter with audio applications |
CN101313462A (en) * | 2005-11-18 | 2008-11-26 | Nxp股份有限公司 | Driving an inductive load |
JP4513022B2 (en) * | 2005-12-28 | 2010-07-28 | ソニー株式会社 | Digital amplifier device and digital amplifier device reset method |
WO2007135928A1 (en) | 2006-05-21 | 2007-11-29 | Trigence Semiconductor, Inc. | Digital/analog conversion apparatus |
US20080000431A1 (en) * | 2006-06-29 | 2008-01-03 | Stephen Longo | Dog leash assembly |
WO2008033116A1 (en) * | 2006-09-11 | 2008-03-20 | Semiconductor Components Industries, L.L.C. | Amplification circuit and method therefor |
US7970075B2 (en) * | 2006-09-14 | 2011-06-28 | Samsung Electronics Co., Ltd. | Apparatus and method for up-conversion of radio signals |
US7852247B2 (en) * | 2006-12-05 | 2010-12-14 | Texas Instruments Incorporated | Mixed-signal filter |
TWM327126U (en) * | 2007-09-17 | 2008-02-11 | Princeton Technology Corp | Audio signal processing apparatus |
CN101399559B (en) * | 2007-09-28 | 2013-01-02 | 普诚科技股份有限公司 | Sound signal processing device |
WO2009127085A1 (en) * | 2008-04-18 | 2009-10-22 | Zoran Corporation | Methods and systems of controlling an electronic device's i/o terminals using pulse-width modulation |
JP5552614B2 (en) | 2008-06-16 | 2014-07-16 | 株式会社 Trigence Semiconductor | Digital speaker driving device, digital speaker device, actuator, flat display device and portable electronic device |
KR20100008749A (en) * | 2008-07-16 | 2010-01-26 | 삼성전자주식회사 | Switching power amplifier and control method thereof |
EP2391014B1 (en) | 2009-12-09 | 2017-12-27 | Trigence Semiconductor, Inc. | Selection device |
KR20120101186A (en) | 2009-12-16 | 2012-09-13 | 트라이젠스 세미컨덕터 가부시키가이샤 | Acoustic playback system |
JP5647427B2 (en) * | 2010-03-25 | 2014-12-24 | ローム株式会社 | Motor drive circuit, cooling device using the same, and electronic equipment |
CN103119648B (en) * | 2010-09-22 | 2015-06-17 | 杜比实验室特许公司 | Efficient implementation of phase shift filtering for decorrelation and other applications in an audio coding system |
US9019012B2 (en) * | 2011-11-18 | 2015-04-28 | Cirrus Logic International (Uk) Limited | Amplifier circuit with offset control |
US9063936B2 (en) * | 2011-12-30 | 2015-06-23 | Verisign, Inc. | Image, audio, and metadata inputs for keyword resource navigation links |
US8890608B2 (en) * | 2012-02-29 | 2014-11-18 | Texas Instruments Incorporated | Digital input class-D audio amplifier |
CN104104452B (en) * | 2014-06-24 | 2016-08-24 | 努比亚技术有限公司 | Audio demodulation method based on PWM and demodulator |
DE102016215657A1 (en) | 2016-08-19 | 2018-02-22 | Lenze Automation Gmbh | Method for generating a digital signal from an analog signal and frequency converter |
US10680638B2 (en) | 2018-07-04 | 2020-06-09 | SiliconIntervention Inc. | Linearity in a quantized feedback loop |
CN112022405A (en) * | 2020-08-31 | 2020-12-04 | 深圳市云顶信息技术有限公司 | Bone conduction audio frequency electric toothbrush |
WO2022146474A1 (en) * | 2021-01-04 | 2022-07-07 | Zeku, Inc. | Apparatus and method of configurable reduction to signal resolution |
KR102315111B1 (en) * | 2021-09-08 | 2021-10-20 | 주식회사 이뱅킹텍 | multi banknote image acquisition and preprocessing apparatus based hardware |
CN114195933B (en) * | 2021-12-23 | 2022-12-30 | 诚达药业股份有限公司 | Preparation method of paper thickening agent and preparation method of thickened paper pulp |
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US4555795A (en) * | 1982-07-22 | 1985-11-26 | Tvi Systems, Ltd. | Monaural to binaural audio processor |
JPH0360222A (en) * | 1989-07-28 | 1991-03-15 | Sansui Electric Co Ltd | Audio amplifier |
US5559467A (en) * | 1995-01-27 | 1996-09-24 | The Regents Of The University Of California | Digital, pulse width modulation audio power amplifier with noise and ripple shaping |
US5903871A (en) * | 1996-04-22 | 1999-05-11 | Olympus Optical Co., Ltd. | Voice recording and/or reproducing apparatus |
US5777512A (en) * | 1996-06-20 | 1998-07-07 | Tripath Technology, Inc. | Method and apparatus for oversampled, noise-shaping, mixed-signal processing |
EP0889588B1 (en) * | 1997-07-02 | 2003-06-11 | Micronas Semiconductor Holding AG | Filter combination for sample rate conversion |
US5974089A (en) * | 1997-07-22 | 1999-10-26 | Tripath Technology, Inc. | Method and apparatus for performance improvement by qualifying pulses in an oversampled noise-shaping signal processor |
US6208279B1 (en) * | 1998-08-17 | 2001-03-27 | Linear Technology Dorporation | Single-cycle oversampling analog-to-digital converter |
DE69919500T2 (en) * | 1999-02-11 | 2005-09-08 | Stmicroelectronics S.R.L., Agrate Brianza | PWM power amplifier with digital input |
US6344811B1 (en) * | 1999-03-16 | 2002-02-05 | Audio Logic, Inc. | Power supply compensation for noise shaped, digital amplifiers |
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US6414560B2 (en) * | 2000-03-03 | 2002-07-02 | Tripath Technology, Inc. | Loop delay compensation for a digital power amplifier |
US6735398B1 (en) * | 2000-03-15 | 2004-05-11 | Hughes Electronics Corporation | Generating methods for single and multi-channel wideband optical analog pulse positioned waveforms |
US6515604B2 (en) * | 2000-04-17 | 2003-02-04 | Tripath Technology, Inc. | Mixed signal processing unit with improved distortion and noise characteristics |
US6593807B2 (en) * | 2000-12-21 | 2003-07-15 | William Harris Groves, Jr. | Digital amplifier with improved performance |
US6466087B2 (en) * | 2000-12-28 | 2002-10-15 | Nokia Mobile Phones, Ltd. | Method and apparatus providing digital error correction for a class D power stage |
JP4461631B2 (en) * | 2001-04-12 | 2010-05-12 | ソニー株式会社 | Switching amplifier device |
US20040213333A1 (en) * | 2001-05-25 | 2004-10-28 | Kaibin Huang | Sigma-delta modulation code division multiple-access receiver |
US6504427B2 (en) * | 2001-05-31 | 2003-01-07 | Motorola, Inc. | Switching amplifier having digital correction and method therefor |
JP2003110376A (en) * | 2001-09-28 | 2003-04-11 | Sony Corp | Signal amplifier |
WO2003030373A1 (en) * | 2001-09-28 | 2003-04-10 | Sony Corporation | Delta-sigma modulation apparatus and signal amplification apparatus |
DE60333994D1 (en) * | 2002-05-23 | 2010-10-14 | Analog Devices Inc | DELAY OF TIME FOR DECORATION |
US6573850B1 (en) * | 2002-05-24 | 2003-06-03 | Wolfson Microelectronics Limited | Digital-to-analogue converter circuits |
US7170360B2 (en) * | 2003-01-31 | 2007-01-30 | Infineon Technologies Ag | Device and method for digital pulse width modulation |
-
2003
- 2003-07-17 US US10/621,504 patent/US7058464B2/en not_active Expired - Lifetime
-
2004
- 2004-07-16 KR KR1020067001154A patent/KR20060039914A/en not_active Application Discontinuation
- 2004-07-16 CN CN2004800268753A patent/CN1853344B/en not_active Expired - Fee Related
- 2004-07-16 WO PCT/US2004/023109 patent/WO2005011181A2/en active Application Filing
- 2004-07-16 EP EP04778547A patent/EP1654672A4/en not_active Withdrawn
- 2004-07-16 JP JP2006520401A patent/JP2007532033A/en active Pending
-
2006
- 2006-06-05 US US11/422,289 patent/US20060282185A1/en not_active Abandoned
Non-Patent Citations (1)
Title |
---|
See references of EP1654672A4 * |
Cited By (2)
Publication number | Priority date | Publication date | Assignee | Title |
---|---|---|---|---|
US9374029B2 (en) | 2010-03-25 | 2016-06-21 | Rohm Co., Ltd. | Motor driving circuit |
US10164557B2 (en) | 2010-03-25 | 2018-12-25 | Rohm Co., Ltd. | Motor driving circuit |
Also Published As
Publication number | Publication date |
---|---|
US20050012545A1 (en) | 2005-01-20 |
US20060282185A1 (en) | 2006-12-14 |
WO2005011181A3 (en) | 2005-05-06 |
EP1654672A4 (en) | 2006-09-27 |
US7058464B2 (en) | 2006-06-06 |
KR20060039914A (en) | 2006-05-09 |
EP1654672A2 (en) | 2006-05-10 |
CN1853344A (en) | 2006-10-25 |
JP2007532033A (en) | 2007-11-08 |
CN1853344B (en) | 2012-05-09 |
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