CN102685636A - 音频电路 - Google Patents
音频电路 Download PDFInfo
- Publication number
- CN102685636A CN102685636A CN201110065853XA CN201110065853A CN102685636A CN 102685636 A CN102685636 A CN 102685636A CN 201110065853X A CN201110065853X A CN 201110065853XA CN 201110065853 A CN201110065853 A CN 201110065853A CN 102685636 A CN102685636 A CN 102685636A
- Authority
- CN
- China
- Prior art keywords
- circuit
- output
- input
- audio
- control
- 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.)
- Granted
Links
- 230000015572 biosynthetic process Effects 0.000 claims 1
- 230000008878 coupling Effects 0.000 description 3
- 238000010168 coupling process Methods 0.000 description 3
- 238000005859 coupling reaction Methods 0.000 description 3
- 238000009434 installation Methods 0.000 description 3
- 238000005516 engineering process Methods 0.000 description 1
- 230000007704 transition Effects 0.000 description 1
Images
Classifications
-
- H—ELECTRICITY
- H04—ELECTRIC COMMUNICATION TECHNIQUE
- H04R—LOUDSPEAKERS, MICROPHONES, GRAMOPHONE PICK-UPS OR LIKE ACOUSTIC ELECTROMECHANICAL TRANSDUCERS; DEAF-AID SETS; PUBLIC ADDRESS SYSTEMS
- H04R3/00—Circuits for transducers, loudspeakers or microphones
-
- H—ELECTRICITY
- H03—ELECTRONIC CIRCUITRY
- H03G—CONTROL OF AMPLIFICATION
- H03G3/00—Gain control in amplifiers or frequency changers
- H03G3/20—Automatic control
- H03G3/30—Automatic control in amplifiers having semiconductor devices
- H03G3/34—Muting amplifier when no signal is present or when only weak signals are present, or caused by the presence of noise signals, e.g. squelch systems
- H03G3/341—Muting when no signals or only weak signals are present
-
- H—ELECTRICITY
- H04—ELECTRIC COMMUNICATION TECHNIQUE
- H04R—LOUDSPEAKERS, MICROPHONES, GRAMOPHONE PICK-UPS OR LIKE ACOUSTIC ELECTROMECHANICAL TRANSDUCERS; DEAF-AID SETS; PUBLIC ADDRESS SYSTEMS
- H04R2430/00—Signal processing covered by H04R, not provided for in its groups
- H04R2430/01—Aspects of volume control, not necessarily automatic, in sound systems
Landscapes
- Physics & Mathematics (AREA)
- Engineering & Computer Science (AREA)
- Acoustics & Sound (AREA)
- Signal Processing (AREA)
- Amplifiers (AREA)
Abstract
Description
音频电路 | 100 |
比较电路 | 10 |
电源分配电路 | 20 |
音频驱动控制电路 | 30 |
音频输出单元 | 40 |
静音控制电路 | 50 |
比较器 | 11 |
正向输入端 | 111 |
反向输入端 | 112 |
输出端 | 113 |
驱动电压源 | V1 |
参考电压源 | Vref |
第一电阻 | R1 |
第二电阻 | R2 |
节点 | O |
电源分配器 | 21 |
控制输入端 | 21a |
电源输入端 | 210 |
第一电源输出端 | 211 |
第二电源输出端 | 212 |
电源 | Vcc |
音频驱动控制器 | 31 |
电源输入端 | 310 |
第一信号输出端 | 311 |
第二信号输出端 | 312 |
第一音频输出单元 | 41 |
第二音频输出单元 | 42 |
输入端 | 411、421 |
静音控制器 | 51 |
第一控制端 | 511 |
第二控制端 | 512 |
第一控制开关 | Q1 |
基极 | B |
集电极 | C |
发射极 | E |
Claims (9)
Priority Applications (3)
Application Number | Priority Date | Filing Date | Title |
---|---|---|---|
CN201110065853.XA CN102685636B (zh) | 2011-03-18 | 2011-03-18 | 音频电路 |
TW100110430A TWI455606B (zh) | 2011-03-18 | 2011-03-25 | 音頻電路 |
US13/117,160 US20120237057A1 (en) | 2011-03-18 | 2011-05-27 | Audio driver circuit |
Applications Claiming Priority (1)
Application Number | Priority Date | Filing Date | Title |
---|---|---|---|
CN201110065853.XA CN102685636B (zh) | 2011-03-18 | 2011-03-18 | 音频电路 |
Publications (2)
Publication Number | Publication Date |
---|---|
CN102685636A true CN102685636A (zh) | 2012-09-19 |
CN102685636B CN102685636B (zh) | 2014-11-12 |
Family
ID=46816892
Family Applications (1)
Application Number | Title | Priority Date | Filing Date |
---|---|---|---|
CN201110065853.XA Expired - Fee Related CN102685636B (zh) | 2011-03-18 | 2011-03-18 | 音频电路 |
Country Status (3)
Country | Link |
---|---|
US (1) | US20120237057A1 (zh) |
CN (1) | CN102685636B (zh) |
TW (1) | TWI455606B (zh) |
Cited By (1)
Publication number | Priority date | Publication date | Assignee | Title |
---|---|---|---|---|
CN104640028A (zh) * | 2015-03-05 | 2015-05-20 | 浪潮集团有限公司 | 一种基于全国产飞腾处理器平台音频mute线路 |
Families Citing this family (2)
Publication number | Priority date | Publication date | Assignee | Title |
---|---|---|---|---|
CN103517180A (zh) * | 2012-06-15 | 2014-01-15 | 鸿富锦精密工业(深圳)有限公司 | 电子设备 |
CN103634725A (zh) * | 2013-12-10 | 2014-03-12 | 惠州市德赛西威汽车电子有限公司 | 一种静音控制方法及电路 |
Citations (2)
Publication number | Priority date | Publication date | Assignee | Title |
---|---|---|---|---|
EP2091145A1 (en) * | 2008-02-15 | 2009-08-19 | Hon Hai Precision Industry Co., Ltd. | Pop noise suppression apparatus and audio output system utilizing the same |
CN101742380A (zh) * | 2008-11-25 | 2010-06-16 | 联发科技股份有限公司 | 静音电路以及相关电子装置与消除噪声方法 |
Family Cites Families (6)
Publication number | Priority date | Publication date | Assignee | Title |
---|---|---|---|---|
JPS5442447U (zh) * | 1977-08-29 | 1979-03-22 | ||
IT1229860B (it) * | 1988-11-09 | 1991-09-13 | Sgs Thomson Microelectronics | Amplificatore audio integrato con regolazione unificata delle funzioni di "mute" e "stand by" e dei transitori di commutazione. |
JPH04160910A (ja) * | 1990-10-25 | 1992-06-04 | Pioneer Electron Corp | 保護回路 |
TWI329459B (en) * | 2007-02-05 | 2010-08-21 | Hon Hai Prec Ind Co Ltd | Earphone and media player employing the same and method of automatic controlling the media player |
TWI442785B (zh) * | 2007-04-27 | 2014-06-21 | Hon Hai Prec Ind Co Ltd | 音頻設備及播放裝置以及自動關閉該音頻設備的方法 |
US8050572B2 (en) * | 2007-05-29 | 2011-11-01 | Sharp Kabushiki Kaisha | Receiver and electronic device |
-
2011
- 2011-03-18 CN CN201110065853.XA patent/CN102685636B/zh not_active Expired - Fee Related
- 2011-03-25 TW TW100110430A patent/TWI455606B/zh not_active IP Right Cessation
- 2011-05-27 US US13/117,160 patent/US20120237057A1/en not_active Abandoned
Patent Citations (2)
Publication number | Priority date | Publication date | Assignee | Title |
---|---|---|---|---|
EP2091145A1 (en) * | 2008-02-15 | 2009-08-19 | Hon Hai Precision Industry Co., Ltd. | Pop noise suppression apparatus and audio output system utilizing the same |
CN101742380A (zh) * | 2008-11-25 | 2010-06-16 | 联发科技股份有限公司 | 静音电路以及相关电子装置与消除噪声方法 |
Cited By (2)
Publication number | Priority date | Publication date | Assignee | Title |
---|---|---|---|---|
CN104640028A (zh) * | 2015-03-05 | 2015-05-20 | 浪潮集团有限公司 | 一种基于全国产飞腾处理器平台音频mute线路 |
CN104640028B (zh) * | 2015-03-05 | 2018-06-19 | 浪潮集团有限公司 | 一种基于全国产飞腾处理器平台音频mute线路 |
Also Published As
Publication number | Publication date |
---|---|
CN102685636B (zh) | 2014-11-12 |
TW201240487A (en) | 2012-10-01 |
TWI455606B (zh) | 2014-10-01 |
US20120237057A1 (en) | 2012-09-20 |
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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 | ||
TR01 | Transfer of patent right |
Effective date of registration: 20180428 Address after: The Guangxi Zhuang Autonomous Region Nanning hi tech Zone headquarters road 18, China ASEAN business base three phase 5# plant Patentee after: NANNING FUGUI PRECISION INDUSTRIAL CO., LTD. Address before: 518109, No. two, No. tenth, East Ring Road, Pinus tabulaeformis Industrial Zone, Longhua Town, Baoan District, Guangdong, Shenzhen, 2 Co-patentee before: Hon Hai Precision Industry Co., Ltd. Patentee before: Hongfujin Precise Industry (Shenzhen) Co., Ltd. |
|
TR01 | Transfer of patent right | ||
CF01 | Termination of patent right due to non-payment of annual fee |
Granted publication date: 20141112 Termination date: 20190318 |
|
CF01 | Termination of patent right due to non-payment of annual fee |