CN2854992Y - 一种微型驻极体电容式传声器 - Google Patents
一种微型驻极体电容式传声器 Download PDFInfo
- Publication number
- CN2854992Y CN2854992Y CN 200520144032 CN200520144032U CN2854992Y CN 2854992 Y CN2854992 Y CN 2854992Y CN 200520144032 CN200520144032 CN 200520144032 CN 200520144032 U CN200520144032 U CN 200520144032U CN 2854992 Y CN2854992 Y CN 2854992Y
- Authority
- CN
- China
- Prior art keywords
- cavity
- wiring board
- circuit board
- pole plate
- conductive layer
- 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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- Electrostatic, Electromagnetic, Magneto- Strictive, And Variable-Resistance Transducers (AREA)
Abstract
Description
Claims (3)
Priority Applications (1)
Application Number | Priority Date | Filing Date | Title |
---|---|---|---|
CN 200520144032 CN2854992Y (zh) | 2005-12-14 | 2005-12-14 | 一种微型驻极体电容式传声器 |
Applications Claiming Priority (1)
Application Number | Priority Date | Filing Date | Title |
---|---|---|---|
CN 200520144032 CN2854992Y (zh) | 2005-12-14 | 2005-12-14 | 一种微型驻极体电容式传声器 |
Publications (1)
Publication Number | Publication Date |
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CN2854992Y true CN2854992Y (zh) | 2007-01-03 |
Family
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Family Applications (1)
Application Number | Title | Priority Date | Filing Date |
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CN 200520144032 Expired - Lifetime CN2854992Y (zh) | 2005-12-14 | 2005-12-14 | 一种微型驻极体电容式传声器 |
Country Status (1)
Country | Link |
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CN (1) | CN2854992Y (zh) |
Cited By (1)
Publication number | Priority date | Publication date | Assignee | Title |
---|---|---|---|---|
CN101257737B (zh) * | 2008-03-01 | 2012-07-25 | 歌尔声学股份有限公司 | 微型电容式麦克风 |
-
2005
- 2005-12-14 CN CN 200520144032 patent/CN2854992Y/zh not_active Expired - Lifetime
Cited By (1)
Publication number | Priority date | Publication date | Assignee | Title |
---|---|---|---|---|
CN101257737B (zh) * | 2008-03-01 | 2012-07-25 | 歌尔声学股份有限公司 | 微型电容式麦克风 |
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Legal Events
Date | Code | Title | Description |
---|---|---|---|
C14 | Grant of patent or utility model | ||
GR01 | Patent grant | ||
ASS | Succession or assignment of patent right |
Owner name: GOER TEK INC. Free format text: FORMER OWNER: WEIFANG GEER ELECTRONICS CO.,LTD. Effective date: 20071012 |
|
C41 | Transfer of patent application or patent right or utility model | ||
TR01 | Transfer of patent right |
Effective date of registration: 20071012 Address after: 261031 No. 268 Dongfang Road, Weifang hi tech Development Zone, Shandong, China Patentee after: Goertek Inc. Address before: 261031, Shandong, Weifang hi tech Industrial Development Zone, the first Road North Patentee before: Weifang Goertek Electronics Co., Ltd. |
|
CX01 | Expiry of patent term |
Granted publication date: 20070103 |
|
EXPY | Termination of patent right or utility model |