CN101350593A - Circuit for suppressing POP noise - Google Patents
Circuit for suppressing POP noise Download PDFInfo
- Publication number
- CN101350593A CN101350593A CNA2008100458936A CN200810045893A CN101350593A CN 101350593 A CN101350593 A CN 101350593A CN A2008100458936 A CNA2008100458936 A CN A2008100458936A CN 200810045893 A CN200810045893 A CN 200810045893A CN 101350593 A CN101350593 A CN 101350593A
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- amplifier
- pop noise
- circuit
- noise reducing
- switch
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Abstract
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Claims (8)
Priority Applications (1)
Application Number | Priority Date | Filing Date | Title |
---|---|---|---|
CN2008100458936A CN101350593B (en) | 2008-08-26 | 2008-08-26 | Circuit for suppressing POP noise |
Applications Claiming Priority (1)
Application Number | Priority Date | Filing Date | Title |
---|---|---|---|
CN2008100458936A CN101350593B (en) | 2008-08-26 | 2008-08-26 | Circuit for suppressing POP noise |
Publications (2)
Publication Number | Publication Date |
---|---|
CN101350593A true CN101350593A (en) | 2009-01-21 |
CN101350593B CN101350593B (en) | 2010-12-08 |
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Family Applications (1)
Application Number | Title | Priority Date | Filing Date |
---|---|---|---|
CN2008100458936A Expired - Fee Related CN101350593B (en) | 2008-08-26 | 2008-08-26 | Circuit for suppressing POP noise |
Country Status (1)
Country | Link |
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CN (1) | CN101350593B (en) |
Cited By (10)
Publication number | Priority date | Publication date | Assignee | Title |
---|---|---|---|---|
CN101742381A (en) * | 2009-11-23 | 2010-06-16 | 北京中星微电子有限公司 | Denoising drive circuit and method |
CN101835071A (en) * | 2010-03-31 | 2010-09-15 | 惠州市德赛西威汽车电子有限公司 | Sound noise control circuit |
CN101986668A (en) * | 2010-09-03 | 2011-03-16 | 深圳市中兴移动通信有限公司 | Circuit and method for eliminating POP tone in dual-mode handset earphone communication |
CN102547528A (en) * | 2012-01-04 | 2012-07-04 | 深圳市宽宏科技有限公司 | Booting moment mute circuit |
CN102572629A (en) * | 2010-12-10 | 2012-07-11 | 炬力集成电路设计有限公司 | Circuit for suppressing POP sound in earphone, and earphone |
CN102572642A (en) * | 2010-12-14 | 2012-07-11 | 联芯科技有限公司 | Audio POP sound elimination method and earphone audio circuit |
CN103248985A (en) * | 2012-02-03 | 2013-08-14 | 安凯(广州)微电子技术有限公司 | Noise-suppression circuit provided with blocking capacitor of audio amplifier |
CN103402157A (en) * | 2013-08-02 | 2013-11-20 | 北京昆腾微电子有限公司 | Audio-frequency circuit and method for eliminating POP noises |
CN107370466A (en) * | 2011-09-16 | 2017-11-21 | 意法半导体研发(深圳)有限公司 | Amplifying circuit |
CN108810735A (en) * | 2017-04-28 | 2018-11-13 | 华为技术有限公司 | A kind of suppressing method, audio output circuit and the terminal of POP sounds |
-
2008
- 2008-08-26 CN CN2008100458936A patent/CN101350593B/en not_active Expired - Fee Related
Cited By (17)
Publication number | Priority date | Publication date | Assignee | Title |
---|---|---|---|---|
CN101742381A (en) * | 2009-11-23 | 2010-06-16 | 北京中星微电子有限公司 | Denoising drive circuit and method |
CN101835071A (en) * | 2010-03-31 | 2010-09-15 | 惠州市德赛西威汽车电子有限公司 | Sound noise control circuit |
CN101835071B (en) * | 2010-03-31 | 2013-07-03 | 惠州市德赛西威汽车电子有限公司 | Sound noise control circuit |
CN101986668A (en) * | 2010-09-03 | 2011-03-16 | 深圳市中兴移动通信有限公司 | Circuit and method for eliminating POP tone in dual-mode handset earphone communication |
CN101986668B (en) * | 2010-09-03 | 2014-11-26 | 深圳市中兴移动通信有限公司 | Circuit and method for eliminating POP tone in dual-mode handset earphone communication |
CN102572629A (en) * | 2010-12-10 | 2012-07-11 | 炬力集成电路设计有限公司 | Circuit for suppressing POP sound in earphone, and earphone |
CN102572642A (en) * | 2010-12-14 | 2012-07-11 | 联芯科技有限公司 | Audio POP sound elimination method and earphone audio circuit |
CN102572642B (en) * | 2010-12-14 | 2014-12-10 | 联芯科技有限公司 | Audio POP sound elimination method and earphone audio circuit |
CN107370466A (en) * | 2011-09-16 | 2017-11-21 | 意法半导体研发(深圳)有限公司 | Amplifying circuit |
CN102547528A (en) * | 2012-01-04 | 2012-07-04 | 深圳市宽宏科技有限公司 | Booting moment mute circuit |
CN103248985A (en) * | 2012-02-03 | 2013-08-14 | 安凯(广州)微电子技术有限公司 | Noise-suppression circuit provided with blocking capacitor of audio amplifier |
CN103248985B (en) * | 2012-02-03 | 2015-12-09 | 安凯(广州)微电子技术有限公司 | A kind of audio frequency power amplifier squelch-circuit with the straight electric capacity of isolation |
CN103402157A (en) * | 2013-08-02 | 2013-11-20 | 北京昆腾微电子有限公司 | Audio-frequency circuit and method for eliminating POP noises |
CN103402157B (en) * | 2013-08-02 | 2016-09-28 | 昆腾微电子股份有限公司 | Voicefrequency circuit, audio system and the method eliminating POP noise |
CN108810735A (en) * | 2017-04-28 | 2018-11-13 | 华为技术有限公司 | A kind of suppressing method, audio output circuit and the terminal of POP sounds |
CN108810735B (en) * | 2017-04-28 | 2020-03-20 | 华为技术有限公司 | POP sound suppression method, audio output circuit and terminal |
US10893360B2 (en) | 2017-04-28 | 2021-01-12 | Huawei Technologies Co., Ltd. | Pop sound suppression method, audio output circuit, and terminal |
Also Published As
Publication number | Publication date |
---|---|
CN101350593B (en) | 2010-12-08 |
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Legal Events
Date | Code | Title | Description |
---|---|---|---|
C06 | Publication | ||
PB01 | Publication | ||
C10 | Entry into substantive examination | ||
SE01 | Entry into force of request for substantive examination | ||
C14 | Grant of patent or utility model | ||
GR01 | Patent grant | ||
ASS | Succession or assignment of patent right |
Owner name: SHANGHAI WANDEKAI INDUSTRIAL CO., LTD. Free format text: FORMER OWNER: IPGOAL MICROELECTRONICS (SICHUAN) CO., LTD. Effective date: 20120718 |
|
C41 | Transfer of patent application or patent right or utility model | ||
COR | Change of bibliographic data |
Free format text: CORRECT: ADDRESS; FROM: 610041 CHENGDU, SICHUAN PROVINCE TO: 201699 SONGJIANG, SHANGHAI |
|
TR01 | Transfer of patent right |
Effective date of registration: 20120718 Address after: 201699, 1-10, Lane 2100, loose steam Road, Lake Rock Town, Shanghai, Shanghai, Songjiang District Patentee after: Shenzhen WDK Technology Co., Ltd. Address before: 409 room 7, building 610041, incubator Park, hi tech Zone, Sichuan, Chengdu Patentee before: IPGoal Microelectronics (Sichuan) Co., Ltd. |
|
CF01 | Termination of patent right due to non-payment of annual fee |
Granted publication date: 20101208 Termination date: 20200826 |
|
CF01 | Termination of patent right due to non-payment of annual fee |