CN102148607B - 用于放大器的增益控制装置和方法、电话机 - Google Patents
用于放大器的增益控制装置和方法、电话机 Download PDFInfo
- Publication number
- CN102148607B CN102148607B CN201110095108.XA CN201110095108A CN102148607B CN 102148607 B CN102148607 B CN 102148607B CN 201110095108 A CN201110095108 A CN 201110095108A CN 102148607 B CN102148607 B CN 102148607B
- Authority
- CN
- China
- Prior art keywords
- gain
- amplifier
- control
- control signal
- telephone set
- 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.)
- Active
Links
- 238000000034 method Methods 0.000 title claims abstract description 16
- 230000000052 comparative effect Effects 0.000 claims description 7
- 230000003321 amplification Effects 0.000 description 14
- 238000003199 nucleic acid amplification method Methods 0.000 description 14
- 238000010586 diagram Methods 0.000 description 2
- 238000006243 chemical reaction Methods 0.000 description 1
- 238000005516 engineering process Methods 0.000 description 1
- 238000004377 microelectronic Methods 0.000 description 1
Classifications
-
- 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
- H03G3/3005—Automatic control in amplifiers having semiconductor devices in amplifiers suitable for low-frequencies, e.g. audio amplifiers
- H03G3/3026—Automatic control in amplifiers having semiconductor devices in amplifiers suitable for low-frequencies, e.g. audio amplifiers the gain being discontinuously variable, e.g. controlled by switching
-
- H—ELECTRICITY
- H04—ELECTRIC COMMUNICATION TECHNIQUE
- H04R—LOUDSPEAKERS, MICROPHONES, GRAMOPHONE PICK-UPS OR LIKE ACOUSTIC ELECTROMECHANICAL TRANSDUCERS; DEAF-AID SETS; PUBLIC ADDRESS SYSTEMS
- H04R2410/00—Microphones
-
- 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
Landscapes
- Engineering & Computer Science (AREA)
- Multimedia (AREA)
- Amplifiers (AREA)
- Circuit For Audible Band Transducer (AREA)
Abstract
Description
Claims (8)
Priority Applications (2)
Application Number | Priority Date | Filing Date | Title |
---|---|---|---|
CN201110095108.XA CN102148607B (zh) | 2011-04-15 | 2011-04-15 | 用于放大器的增益控制装置和方法、电话机 |
US13/444,667 US20120263320A1 (en) | 2011-04-15 | 2012-04-11 | Gain Control Device for an Amplifier and Related Methods, and an Audio Processing Device |
Applications Claiming Priority (1)
Application Number | Priority Date | Filing Date | Title |
---|---|---|---|
CN201110095108.XA CN102148607B (zh) | 2011-04-15 | 2011-04-15 | 用于放大器的增益控制装置和方法、电话机 |
Publications (2)
Publication Number | Publication Date |
---|---|
CN102148607A CN102148607A (zh) | 2011-08-10 |
CN102148607B true CN102148607B (zh) | 2016-03-30 |
Family
ID=44422648
Family Applications (1)
Application Number | Title | Priority Date | Filing Date |
---|---|---|---|
CN201110095108.XA Active CN102148607B (zh) | 2011-04-15 | 2011-04-15 | 用于放大器的增益控制装置和方法、电话机 |
Country Status (2)
Country | Link |
---|---|
US (1) | US20120263320A1 (zh) |
CN (1) | CN102148607B (zh) |
Families Citing this family (3)
Publication number | Priority date | Publication date | Assignee | Title |
---|---|---|---|---|
CN108900218A (zh) * | 2018-08-07 | 2018-11-27 | 张家港市泰克软件有限公司 | 一种信号增强设备及增强方法 |
CN113709626A (zh) * | 2021-08-04 | 2021-11-26 | Oppo广东移动通信有限公司 | 音频录制方法、装置、存储介质以及计算机设备 |
CN115333646B (zh) * | 2022-08-29 | 2023-07-28 | 云南保利天同水下装备科技有限公司 | 一种水声通讯器和其信号自动增益控制方法 |
Citations (3)
Publication number | Priority date | Publication date | Assignee | Title |
---|---|---|---|---|
US6233554B1 (en) * | 1997-12-12 | 2001-05-15 | Qualcomm Incorporated | Audio CODEC with AGC controlled by a VOCODER |
CN1917364A (zh) * | 2005-08-15 | 2007-02-21 | 华硕电脑股份有限公司 | 分段增益限制器及其控制方法 |
CN101102098A (zh) * | 2006-07-07 | 2008-01-09 | 雅马哈株式会社 | 自动增益控制电路 |
Family Cites Families (5)
Publication number | Priority date | Publication date | Assignee | Title |
---|---|---|---|---|
US5832097A (en) * | 1995-09-19 | 1998-11-03 | Gennum Corporation | Multi-channel synchronous companding system |
CN101790843B (zh) * | 2007-08-31 | 2012-12-26 | 美国亚德诺半导体公司 | 用于任何期望的压缩曲线的可变自动限幅控制(alc)阈值 |
GB2455742B (en) * | 2007-12-19 | 2011-11-02 | Wolfson Microelectronics Plc | Dynamic range controller |
US20090315708A1 (en) * | 2008-06-19 | 2009-12-24 | John Walley | Method and system for limiting audio output in audio headsets |
US20090323985A1 (en) * | 2008-06-30 | 2009-12-31 | Qualcomm Incorporated | System and method of controlling power consumption in response to volume control |
-
2011
- 2011-04-15 CN CN201110095108.XA patent/CN102148607B/zh active Active
-
2012
- 2012-04-11 US US13/444,667 patent/US20120263320A1/en not_active Abandoned
Patent Citations (3)
Publication number | Priority date | Publication date | Assignee | Title |
---|---|---|---|---|
US6233554B1 (en) * | 1997-12-12 | 2001-05-15 | Qualcomm Incorporated | Audio CODEC with AGC controlled by a VOCODER |
CN1917364A (zh) * | 2005-08-15 | 2007-02-21 | 华硕电脑股份有限公司 | 分段增益限制器及其控制方法 |
CN101102098A (zh) * | 2006-07-07 | 2008-01-09 | 雅马哈株式会社 | 自动增益控制电路 |
Also Published As
Publication number | Publication date |
---|---|
CN102148607A (zh) | 2011-08-10 |
US20120263320A1 (en) | 2012-10-18 |
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Legal Events
Date | Code | Title | Description |
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C06 | Publication | ||
PB01 | Publication | ||
C10 | Entry into substantive examination | ||
SE01 | Entry into force of request for substantive examination | ||
CB02 | Change of applicant information |
Address after: 100195 Beijing, Yuquan, No. 23 Haidian District Road, building No. 4 Applicant after: KT MICRO, Inc. Address before: 100097 Beijing city Haidian District landianchang Road No. 2 Jin Yuan Times Business Center No. 2 building B, 8 A, B Applicant before: Beijing Kunteng electronic Limited by Share Ltd. Address after: 100097 Beijing city Haidian District landianchang Road No. 2 Jin Yuan Times Business Center No. 2 building B, 8 A, B Applicant after: Beijing Kunteng electronic Limited by Share Ltd. Address before: 100097 Beijing city Haidian District landianchang Road No. 2 Jin Yuan Times Business Center No. 2 building B, 8 A, B Applicant before: KT MICRO Inc. (BEIJING) |
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COR | Change of bibliographic data | ||
C14 | Grant of patent or utility model | ||
GR01 | Patent grant |