CN201438760U - 电容麦克风装置 - Google Patents
电容麦克风装置 Download PDFInfo
- Publication number
- CN201438760U CN201438760U CN2009201333393U CN200920133339U CN201438760U CN 201438760 U CN201438760 U CN 201438760U CN 2009201333393 U CN2009201333393 U CN 2009201333393U CN 200920133339 U CN200920133339 U CN 200920133339U CN 201438760 U CN201438760 U CN 201438760U
- Authority
- CN
- China
- Prior art keywords
- microphone device
- electric capacity
- capacitance microphone
- effect transistor
- signal output
- 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.)
- Expired - Lifetime
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- Circuit For Audible Band Transducer (AREA)
- Amplifiers (AREA)
Abstract
Description
Claims (4)
Priority Applications (1)
Application Number | Priority Date | Filing Date | Title |
---|---|---|---|
CN2009201333393U CN201438760U (zh) | 2009-06-30 | 2009-06-30 | 电容麦克风装置 |
Applications Claiming Priority (1)
Application Number | Priority Date | Filing Date | Title |
---|---|---|---|
CN2009201333393U CN201438760U (zh) | 2009-06-30 | 2009-06-30 | 电容麦克风装置 |
Publications (1)
Publication Number | Publication Date |
---|---|
CN201438760U true CN201438760U (zh) | 2010-04-14 |
Family
ID=42400730
Family Applications (1)
Application Number | Title | Priority Date | Filing Date |
---|---|---|---|
CN2009201333393U Expired - Lifetime CN201438760U (zh) | 2009-06-30 | 2009-06-30 | 电容麦克风装置 |
Country Status (1)
Country | Link |
---|---|
CN (1) | CN201438760U (zh) |
-
2009
- 2009-06-30 CN CN2009201333393U patent/CN201438760U/zh not_active Expired - Lifetime
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Legal Events
Date | Code | Title | Description |
---|---|---|---|
C14 | Grant of patent or utility model | ||
GR01 | Patent grant | ||
TR01 | Transfer of patent right |
Effective date of registration: 20170525 Address after: Singapore Ang Mo Kio 65 Street No. 10 techpoint Building 1 floor, No. 8 Co-patentee after: AAC Acoustic Technologies (Changzhou) Co., Ltd. Patentee after: AAC Technologies (Singapore) Co., Ltd. Address before: Wujin Nanxiashu town Jiangsu city Changzhou province 213167 Co-patentee before: AAC Acoustic Technologies (Shenzhen) Co., Ltd. Patentee before: AAC Acoustic Technologies (Changzhou) Co., Ltd. |
|
TR01 | Transfer of patent right | ||
CX01 | Expiry of patent term |
Granted publication date: 20100414 |
|
CX01 | Expiry of patent term |