CN101902673B - 麦克风接口电路 - Google Patents
麦克风接口电路 Download PDFInfo
- Publication number
- CN101902673B CN101902673B CN201010224370.5A CN201010224370A CN101902673B CN 101902673 B CN101902673 B CN 101902673B CN 201010224370 A CN201010224370 A CN 201010224370A CN 101902673 B CN101902673 B CN 101902673B
- Authority
- CN
- China
- Prior art keywords
- microphone
- output
- interface circuit
- input
- impedance transformer
- 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
Images
Landscapes
- Circuit For Audible Band Transducer (AREA)
- Amplifiers (AREA)
Abstract
Description
Claims (4)
Priority Applications (1)
Application Number | Priority Date | Filing Date | Title |
---|---|---|---|
CN201010224370.5A CN101902673B (zh) | 2010-07-09 | 2010-07-09 | 麦克风接口电路 |
Applications Claiming Priority (1)
Application Number | Priority Date | Filing Date | Title |
---|---|---|---|
CN201010224370.5A CN101902673B (zh) | 2010-07-09 | 2010-07-09 | 麦克风接口电路 |
Publications (2)
Publication Number | Publication Date |
---|---|
CN101902673A CN101902673A (zh) | 2010-12-01 |
CN101902673B true CN101902673B (zh) | 2014-06-18 |
Family
ID=43227802
Family Applications (1)
Application Number | Title | Priority Date | Filing Date |
---|---|---|---|
CN201010224370.5A Active CN101902673B (zh) | 2010-07-09 | 2010-07-09 | 麦克风接口电路 |
Country Status (1)
Country | Link |
---|---|
CN (1) | CN101902673B (zh) |
Families Citing this family (7)
Publication number | Priority date | Publication date | Assignee | Title |
---|---|---|---|---|
CN102611974B (zh) * | 2012-03-09 | 2014-05-07 | 无锡纳讯微电子有限公司 | Mems麦克风电路 |
US10589987B2 (en) | 2013-11-06 | 2020-03-17 | Infineon Technologies Ag | System and method for a MEMS transducer |
CN104038865B (zh) * | 2014-03-14 | 2018-02-23 | 宁波萨瑞通讯有限公司 | 一种麦克风检测电路及其移动终端设备 |
CN105681971B (zh) * | 2016-01-13 | 2018-12-11 | 瑞声光电科技(常州)有限公司 | 麦克风模拟集成电路 |
CN110740411B (zh) * | 2019-10-22 | 2021-05-04 | 苏州芯仪微电子科技有限公司 | 接口电路、微机电声学传感器和接口电路的驱动方法 |
CN113286239A (zh) * | 2021-05-25 | 2021-08-20 | 维沃移动通信有限公司 | 用于麦克风的电压输出方法、装置、麦克风和电子设备 |
CN113541480A (zh) * | 2021-09-15 | 2021-10-22 | 武汉市聚芯微电子有限责任公司 | 稳压型功率调节电路、功率调节装置及电子装置 |
Citations (2)
Publication number | Priority date | Publication date | Assignee | Title |
---|---|---|---|---|
CN2867747Y (zh) * | 2006-01-09 | 2007-02-07 | 中亿源科技(深圳)有限公司 | 单向麦克风语音背景噪声抑制电路 |
CN101640829A (zh) * | 2008-07-30 | 2010-02-03 | 中国科学院声学研究所 | 一种用于mems麦克风的数字前置放大器 |
Family Cites Families (1)
Publication number | Priority date | Publication date | Assignee | Title |
---|---|---|---|---|
JP4799577B2 (ja) * | 2008-03-13 | 2011-10-26 | 株式会社オーディオテクニカ | コンデンサーマイクロホン |
-
2010
- 2010-07-09 CN CN201010224370.5A patent/CN101902673B/zh active Active
Patent Citations (2)
Publication number | Priority date | Publication date | Assignee | Title |
---|---|---|---|---|
CN2867747Y (zh) * | 2006-01-09 | 2007-02-07 | 中亿源科技(深圳)有限公司 | 单向麦克风语音背景噪声抑制电路 |
CN101640829A (zh) * | 2008-07-30 | 2010-02-03 | 中国科学院声学研究所 | 一种用于mems麦克风的数字前置放大器 |
Also Published As
Publication number | Publication date |
---|---|
CN101902673A (zh) | 2010-12-01 |
Similar Documents
Publication | Publication Date | Title |
---|---|---|
CN101902673B (zh) | 麦克风接口电路 | |
CN101271344B (zh) | 一种高电源噪声抑制的低压差电压调节器 | |
CN104656733B (zh) | 自适应输出超低静态电流的低压差线性稳压器 | |
CN103634439B (zh) | 降噪处理系统 | |
CN103682724B (zh) | 移动终端 | |
CN103096216A (zh) | 一种音频处理电路和耳机 | |
CN103973231B (zh) | 放大电路的电压调整电路及相关的调整方法 | |
CN102354883A (zh) | 一种音频信号转接装置 | |
CN103152670A (zh) | 一种音频处理电路和耳机 | |
CN205265633U (zh) | 一种抗干扰信号放大系统 | |
CN103108061A (zh) | 基于手机音频接口进行电能转移的手机、装置及方法 | |
US9306501B2 (en) | Voltage adjusting circuit for amplifier circuit and method thereof | |
CN102868307A (zh) | 一种从音频口获取电源的装置 | |
CN103107795A (zh) | 一种浮地有源电感 | |
CN205657827U (zh) | 一种智能型高集成度有源音箱 | |
CN215345007U (zh) | 一种立体声无线蓝牙耳机控制电路及装置 | |
CN202721728U (zh) | 一种手机及其音频放大输出电路 | |
CN209914063U (zh) | 一种麦克风及其集成电路、电子设备 | |
CN202841485U (zh) | 一种音频口识别电路及用户设备 | |
CN105872889A (zh) | 一种移动音箱控制电路及移动音箱 | |
CN206932389U (zh) | 两端输出的mems麦克风电路 | |
CN215871821U (zh) | 基于nfc配对的多功能无线麦克风 | |
CN104010260A (zh) | 一种两线mems麦克风 | |
CN205068247U (zh) | 一种适配器以及配有该适配器的笔记本电脑 | |
CN205847499U (zh) | 带usb接口的数字音频解码无源耳机 |
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 | ||
PP01 | Preservation of patent right |
Effective date of registration: 20171122 Granted publication date: 20140618 |
|
PP01 | Preservation of patent right | ||
PD01 | Discharge of preservation of patent |
Date of cancellation: 20190417 Granted publication date: 20140618 |
|
PD01 | Discharge of preservation of patent | ||
TR01 | Transfer of patent right |
Effective date of registration: 20190611 Address after: 518057 Building A, Shenzhen Industry, Education and Research Building, Nanjing University, No. 6 Sandao, Yuexing, Nanshan High-tech Zone, Shenzhen, Guangdong Province Patentee after: AAC Acoustic Technologies (Shenzhen) Co., Ltd. Address before: Room 612, Building D, Pioneer Park, 2 Shangdi Information Road, Haidian District, Beijing 100085 Co-patentee before: AAC Acoustic Technologies (Shenzhen) Co., Ltd. Patentee before: Beijing Eastmicro Technology Co., Ltd. |
|
TR01 | Transfer of patent right |