JP2006135993A - 線形補正器及び非線形歪補償方法 - Google Patents
線形補正器及び非線形歪補償方法 Download PDFInfo
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- JP2006135993A JP2006135993A JP2005321544A JP2005321544A JP2006135993A JP 2006135993 A JP2006135993 A JP 2006135993A JP 2005321544 A JP2005321544 A JP 2005321544A JP 2005321544 A JP2005321544 A JP 2005321544A JP 2006135993 A JP2006135993 A JP 2006135993A
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- H—ELECTRICITY
- H03—ELECTRONIC CIRCUITRY
- H03M—CODING; DECODING; CODE CONVERSION IN GENERAL
- H03M1/00—Analogue/digital conversion; Digital/analogue conversion
- H03M1/06—Continuously compensating for, or preventing, undesired influence of physical parameters
- H03M1/0617—Continuously compensating for, or preventing, undesired influence of physical parameters characterised by the use of methods or means not specific to a particular type of detrimental influence
- H03M1/0626—Continuously compensating for, or preventing, undesired influence of physical parameters characterised by the use of methods or means not specific to a particular type of detrimental influence by filtering
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- H—ELECTRICITY
- H03—ELECTRONIC CIRCUITRY
- H03M—CODING; DECODING; CODE CONVERSION IN GENERAL
- H03M1/00—Analogue/digital conversion; Digital/analogue conversion
- H03M1/12—Analogue/digital converters
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- Theoretical Computer Science (AREA)
- Amplifiers (AREA)
- Analogue/Digital Conversion (AREA)
- Cable Transmission Systems, Equalization Of Radio And Reduction Of Echo (AREA)
- Noise Elimination (AREA)
Abstract
【解決手段】 信号処理システムからの信号を1次信号経路(フィルタ102)、2次フィルタ乗算回路(フィルタ104、106、乗算器120)、3次フィルタ乗算回路(フィルタ108−112、乗算器122)に供給する。フィルタ乗算回路は、1次信号経路に対して遅延を有する。1次信号経路及びフィルタ乗算回路の出力を加算器124に直接供給する。この加算器から歪の低減した出力を発生する。
【選択図】図2
Description
また、本発明の線形補償回路(100)は、加算器(124)に接続された1次信号経路(102)と;加算器に直接接続された出力を有する第1乗算器(120)に並列接続された2個のフィルタ(104、106)を含む2次フィルタ乗算回路(104、106、120)と;加算器に直接接続された出力を有する第2乗算器(122)に並列接続された3個のフィルタ(108、110、112)を含む3次フィルタ乗算回路(108、110、112、122)とを具えている。
さらに、本発明は、非線形歪を補償する方法であって;歪のある信号を受け;この信号を所定遅延の信号経路(102)に通過させて、遅延信号(102の出力)を発生し;この遅延信号に対して遅延した信号のフィルタ積(120、122、148、166の出力)を求め;これらフィルタ積及び遅延信号の単純加算を計算(124)して、フィルタ積により生じた歪成分が遅延信号内に含まれる歪を低減することを特徴とする。
18、24 乗算器
28 加算器
29 減算器
100 線形補正器
102、104、106、108、110、112、140、142、144、146、160、162、164 フィルタ
120、122、148、166 乗算器
124 加算器
190 補償済みADC
192 ADCモジュール
Claims (3)
- 1次信号を供給する1次信号経路と、
該1次信号経路に対して遅延を有する補償信号を発生するn次フィルタ乗算回路(nは1よりも大きい整数)と、
上記1次信号経路に接続されると共に、上記n次フィルタ乗算回路に直接接続された加算器とを具え、
上記遅延により、上記補償信号が上記1次信号内の歪を低減することを特徴とする線形補正器。 - 加算器に接続された1次信号経路と、
上記加算器に直接接続された出力を有する第1乗算器に並列接続された2個のフィルタを含む2次フィルタ乗算回路と、
上記加算器に直接接続された出力を有する第2乗算器に並列接続された3個のフィルタを含む3次フィルタ乗算回路と
を具えた線形補正器。 - 非線形歪を補償する方法であって、
歪のある信号を受け、
上記信号を所定遅延の信号経路に通過させて、遅延信号を発生し、
上記遅延信号に対して遅延した上記信号のフィルタ積を求め、
上記フィルタ積及び上記遅延信号の単純加算を計算して、上記フィルタ積により生じた歪成分が上記遅延信号内に含まれる歪を低減すること
を特徴とする非線形歪補償方法。
Applications Claiming Priority (4)
Application Number | Priority Date | Filing Date | Title |
---|---|---|---|
US62537204P | 2004-11-04 | 2004-11-04 | |
US60/625,372 | 2004-11-04 | ||
US11/258,030 US7348908B2 (en) | 2004-11-04 | 2005-10-26 | Linearity corrector using filter products |
US11/258,030 | 2005-10-26 |
Publications (2)
Publication Number | Publication Date |
---|---|
JP2006135993A true JP2006135993A (ja) | 2006-05-25 |
JP4754941B2 JP4754941B2 (ja) | 2011-08-24 |
Family
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Family Applications (1)
Application Number | Title | Priority Date | Filing Date |
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JP2005321544A Expired - Fee Related JP4754941B2 (ja) | 2004-11-04 | 2005-11-04 | 線形補正器 |
Country Status (4)
Country | Link |
---|---|
US (1) | US7348908B2 (ja) |
EP (1) | EP1655838B1 (ja) |
JP (1) | JP4754941B2 (ja) |
DE (1) | DE602005014922D1 (ja) |
Cited By (2)
Publication number | Priority date | Publication date | Assignee | Title |
---|---|---|---|---|
JP2014138226A (ja) * | 2013-01-16 | 2014-07-28 | Onkyo Corp | 音声再生装置 |
WO2022113200A1 (en) * | 2020-11-25 | 2022-06-02 | Nippon Telegraph And Telephone Corporation | Waveform equalizer, waveform equalization method, and waveform equalization program |
Families Citing this family (20)
Publication number | Priority date | Publication date | Assignee | Title |
---|---|---|---|---|
CN101971508B (zh) * | 2008-03-10 | 2015-02-11 | 纽兰斯公司 | 宽带信号处理的方法、系统和装置 |
EP2301152A1 (en) * | 2008-06-23 | 2011-03-30 | Kapik Inc. | System and method for processing a signal with a filter employing fir and iir elements |
KR101310418B1 (ko) | 2010-02-12 | 2013-09-24 | 뉴랜스, 인코포레이티드. | 광대역 아날로그 무선주파수 부품 |
WO2012061385A1 (en) | 2010-11-01 | 2012-05-10 | Newlans, Inc. | Method and apparatus for power amplifier linearization |
US8970252B2 (en) | 2010-11-08 | 2015-03-03 | Newlans, Inc. | Field programmable analog array |
JP5653319B2 (ja) | 2011-08-15 | 2015-01-14 | 株式会社東芝 | 歪み補正装置 |
WO2013067118A1 (en) | 2011-11-01 | 2013-05-10 | Newlans, Inc. | Wideband signal processing |
US9407240B2 (en) | 2012-09-05 | 2016-08-02 | Spero Devices, Inc. | Bi-quad calibration |
US9031177B2 (en) * | 2012-12-20 | 2015-05-12 | Broadcom Corporation | Digital calibration of analog distortion using split analog front-end |
GB2541379A (en) * | 2015-08-14 | 2017-02-22 | Csir | Method and system for improving spurious free dynamic range of signal processing systems |
CN105553904B (zh) * | 2015-12-09 | 2019-01-15 | 西安星通通信科技有限公司 | 一种数字信号幅度和相位校准方法及系统 |
US10547942B2 (en) | 2015-12-28 | 2020-01-28 | Samsung Electronics Co., Ltd. | Control of electrodynamic speaker driver using a low-order non-linear model |
US10462565B2 (en) | 2017-01-04 | 2019-10-29 | Samsung Electronics Co., Ltd. | Displacement limiter for loudspeaker mechanical protection |
US10506347B2 (en) | 2018-01-17 | 2019-12-10 | Samsung Electronics Co., Ltd. | Nonlinear control of vented box or passive radiator loudspeaker systems |
US10701485B2 (en) | 2018-03-08 | 2020-06-30 | Samsung Electronics Co., Ltd. | Energy limiter for loudspeaker protection |
DE102019005019A1 (de) | 2018-07-30 | 2020-01-30 | Sew-Eurodrive Gmbh & Co Kg | Verfahren zum Betreiben eines Antriebssystems und Antriebssystem |
US10542361B1 (en) | 2018-08-07 | 2020-01-21 | Samsung Electronics Co., Ltd. | Nonlinear control of loudspeaker systems with current source amplifier |
US11012773B2 (en) | 2018-09-04 | 2021-05-18 | Samsung Electronics Co., Ltd. | Waveguide for smooth off-axis frequency response |
US10797666B2 (en) | 2018-09-06 | 2020-10-06 | Samsung Electronics Co., Ltd. | Port velocity limiter for vented box loudspeakers |
US11356773B2 (en) | 2020-10-30 | 2022-06-07 | Samsung Electronics, Co., Ltd. | Nonlinear control of a loudspeaker with a neural network |
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US6639537B1 (en) * | 2000-03-31 | 2003-10-28 | Massachusetts Institute Of Technology | Highly linear analog-to-digital conversion system and method thereof |
JP2004289504A (ja) * | 2003-03-24 | 2004-10-14 | Ntt Docomo Inc | 高効率線形電力増幅器 |
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US4019997A (en) * | 1974-02-04 | 1977-04-26 | General Electric Company | Silicone fluid useful as a brae fluid |
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US6911925B1 (en) * | 2004-04-02 | 2005-06-28 | Tektronix, Inc. | Linearity compensation by harmonic cancellation |
US20070123390A1 (en) * | 2005-11-29 | 2007-05-31 | Mathis Christopher E | Exercise equipment with interactive gaming component |
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2005
- 2005-10-26 US US11/258,030 patent/US7348908B2/en not_active Expired - Fee Related
- 2005-10-31 DE DE602005014922T patent/DE602005014922D1/de active Active
- 2005-10-31 EP EP05256742A patent/EP1655838B1/en not_active Expired - Fee Related
- 2005-11-04 JP JP2005321544A patent/JP4754941B2/ja not_active Expired - Fee Related
Patent Citations (4)
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JPH0662284A (ja) * | 1992-08-04 | 1994-03-04 | Sharp Corp | 雑音除去装置 |
JP2000253486A (ja) * | 1999-02-26 | 2000-09-14 | Victor Co Of Japan Ltd | 二次歪み付加装置 |
US6639537B1 (en) * | 2000-03-31 | 2003-10-28 | Massachusetts Institute Of Technology | Highly linear analog-to-digital conversion system and method thereof |
JP2004289504A (ja) * | 2003-03-24 | 2004-10-14 | Ntt Docomo Inc | 高効率線形電力増幅器 |
Cited By (2)
Publication number | Priority date | Publication date | Assignee | Title |
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JP2014138226A (ja) * | 2013-01-16 | 2014-07-28 | Onkyo Corp | 音声再生装置 |
WO2022113200A1 (en) * | 2020-11-25 | 2022-06-02 | Nippon Telegraph And Telephone Corporation | Waveform equalizer, waveform equalization method, and waveform equalization program |
Also Published As
Publication number | Publication date |
---|---|
US20060092057A1 (en) | 2006-05-04 |
EP1655838B1 (en) | 2009-06-17 |
JP4754941B2 (ja) | 2011-08-24 |
DE602005014922D1 (de) | 2009-07-30 |
US7348908B2 (en) | 2008-03-25 |
EP1655838A3 (en) | 2006-06-14 |
EP1655838A2 (en) | 2006-05-10 |
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