CN102195566B - 音频放大器的静态噪声消除电路 - Google Patents
音频放大器的静态噪声消除电路 Download PDFInfo
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- CN102195566B CN102195566B CN 201110034327 CN201110034327A CN102195566B CN 102195566 B CN102195566 B CN 102195566B CN 201110034327 CN201110034327 CN 201110034327 CN 201110034327 A CN201110034327 A CN 201110034327A CN 102195566 B CN102195566 B CN 102195566B
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- frequency amplifier
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- 230000003068 static effect Effects 0.000 title claims abstract description 21
- 238000001914 filtration Methods 0.000 claims abstract description 32
- 230000008030 elimination Effects 0.000 claims description 18
- 238000003379 elimination reaction Methods 0.000 claims description 18
- 230000005236 sound signal Effects 0.000 description 7
- 238000010586 diagram Methods 0.000 description 4
- 230000015572 biosynthetic process Effects 0.000 description 1
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CN 201110034327 CN102195566B (zh) | 2011-02-01 | 2011-02-01 | 音频放大器的静态噪声消除电路 |
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CN 201110034327 CN102195566B (zh) | 2011-02-01 | 2011-02-01 | 音频放大器的静态噪声消除电路 |
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CN102195566A CN102195566A (zh) | 2011-09-21 |
CN102195566B true CN102195566B (zh) | 2013-02-27 |
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CN 201110034327 Expired - Fee Related CN102195566B (zh) | 2011-02-01 | 2011-02-01 | 音频放大器的静态噪声消除电路 |
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Families Citing this family (6)
Publication number | Priority date | Publication date | Assignee | Title |
---|---|---|---|---|
US9065413B2 (en) * | 2012-01-25 | 2015-06-23 | Texas Instruments Incorporated | Method and apparatus for circuit with low IC power dissipation and high dynamic range |
CN103516315B (zh) * | 2013-07-26 | 2015-12-23 | 江苏科技大学 | 一种抵消无源反馈网络噪声的装置 |
US10964306B2 (en) | 2013-08-12 | 2021-03-30 | Analog Devices, Inc. | Systems and methods for noise canceling |
CN106330111A (zh) * | 2015-07-10 | 2017-01-11 | 福州瑞芯微电子股份有限公司 | 音频设备驱动放大器 |
CN110830861B (zh) * | 2019-10-23 | 2021-09-10 | 维沃移动通信有限公司 | 受话器控制方法、装置和电子设备 |
CN114070337B (zh) * | 2021-10-27 | 2023-03-14 | 中国电子科技集团公司第二十九研究所 | 一种低静态噪声固态发射机及降低静态噪声的方法 |
Citations (3)
Publication number | Priority date | Publication date | Assignee | Title |
---|---|---|---|---|
CN1271209A (zh) * | 1999-04-19 | 2000-10-25 | 三洋电机株式会社 | 前置放大电路 |
CN101505140A (zh) * | 2009-03-04 | 2009-08-12 | 中国电力科学研究院 | 一种低噪声高增益-带宽乘积跨阻抗放大器 |
CN201937547U (zh) * | 2011-02-01 | 2011-08-17 | 上海矽诺微电子有限公司 | 音频放大器的静态噪声消除电路 |
Family Cites Families (1)
Publication number | Priority date | Publication date | Assignee | Title |
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JP5088235B2 (ja) * | 2008-05-26 | 2012-12-05 | 富士通株式会社 | ノイズキャンセル回路及びノイズキャンセル回路付き増幅器 |
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Patent Citations (3)
Publication number | Priority date | Publication date | Assignee | Title |
---|---|---|---|---|
CN1271209A (zh) * | 1999-04-19 | 2000-10-25 | 三洋电机株式会社 | 前置放大电路 |
CN101505140A (zh) * | 2009-03-04 | 2009-08-12 | 中国电力科学研究院 | 一种低噪声高增益-带宽乘积跨阻抗放大器 |
CN201937547U (zh) * | 2011-02-01 | 2011-08-17 | 上海矽诺微电子有限公司 | 音频放大器的静态噪声消除电路 |
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CN102195566A (zh) | 2011-09-21 |
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Application publication date: 20110921 Assignee: JINGXIAN XIANGSHENG TECHNOLOGY CO.,LTD. Assignor: Shanghai Mixinno Microelectronic, Inc. Contract record no.: 2014340000179 Denomination of invention: Static noise cancelling circuit of audio amplifier Granted publication date: 20130227 License type: Exclusive License Record date: 20141127 |
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Assignee: JINGXIAN XIANGSHENG TECHNOLOGY CO.,LTD. Assignor: Shanghai Mixinno Microelectronic, Inc. Contract record no.: 2014340000179 Date of cancellation: 20170612 |
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Application publication date: 20110921 Assignee: Haimen microelectronics Co.,Ltd. Assignor: Shanghai Mixinno Microelectronic, Inc. Contract record no.: 2017310000028 Denomination of invention: Static noise cancelling circuit of audio amplifier Granted publication date: 20130227 License type: Exclusive License Record date: 20170614 |
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Effective date of registration: 20181204 Address after: 226133 Room 209, A2 Building, 100 Dongting Lake Road, Linjiang Town, Haimen City, Nantong City, Jiangsu Province Patentee after: Haimen microelectronics Co.,Ltd. Address before: Room 214, No. 2 Building, 1690 Cailun Road, Zhangjiang High-tech Park, Pudong New Area, Shanghai, 201203 Patentee before: Shanghai Mixinno Microelectronic, Inc. |
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