CN204272364U - 一种车载有源硅麦克风控制电路 - Google Patents
一种车载有源硅麦克风控制电路 Download PDFInfo
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- CN204272364U CN204272364U CN201420615600.4U CN201420615600U CN204272364U CN 204272364 U CN204272364 U CN 204272364U CN 201420615600 U CN201420615600 U CN 201420615600U CN 204272364 U CN204272364 U CN 204272364U
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Cited By (1)
Publication number | Priority date | Publication date | Assignee | Title |
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CN106612472A (zh) * | 2015-10-23 | 2017-05-03 | 钰太芯微电子科技(上海)有限公司 | 一种基于麦克风的调节电路及麦克风 |
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Cited By (1)
Publication number | Priority date | Publication date | Assignee | Title |
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CN106612472A (zh) * | 2015-10-23 | 2017-05-03 | 钰太芯微电子科技(上海)有限公司 | 一种基于麦克风的调节电路及麦克风 |
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C14 | Grant of patent or utility model | ||
GR01 | Patent grant | ||
PE01 | Entry into force of the registration of the contract for pledge of patent right |
Denomination of utility model: Vehicle-mounted active silicon microphone control circuit Effective date of registration: 20170110 Granted publication date: 20150415 Pledgee: China Co truction Bank Corp Beijing Zhongguancun branch Pledgor: Beijing Sincode Science & Technology Co., Ltd. Registration number: 2017990000022 |
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PLDC | Enforcement, change and cancellation of contracts on pledge of patent right or utility model | ||
PC01 | Cancellation of the registration of the contract for pledge of patent right |
Date of cancellation: 20180326 Granted publication date: 20150415 Pledgee: China Co truction Bank Corp Beijing Zhongguancun branch Pledgor: Beijing Sincode Science & Technology Co., Ltd. Registration number: 2017990000022 |
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PC01 | Cancellation of the registration of the contract for pledge of patent right | ||
PE01 | Entry into force of the registration of the contract for pledge of patent right |
Denomination of utility model: Vehicle-mounted active silicon microphone control circuit Effective date of registration: 20180329 Granted publication date: 20150415 Pledgee: China Co truction Bank Corp Beijing Zhongguancun branch Pledgor: Beijing Sincode Science & Technology Co., Ltd. Registration number: 2018110000005 |
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PE01 | Entry into force of the registration of the contract for pledge of patent right | ||
PC01 | Cancellation of the registration of the contract for pledge of patent right |
Date of cancellation: 20201113 Granted publication date: 20150415 Pledgee: China Co. truction Bank Corp Beijing Zhongguancun branch Pledgor: BEIJING SINCODE SCIENCE & TECHNOLOGY Co.,Ltd. Registration number: 2018110000005 |
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PC01 | Cancellation of the registration of the contract for pledge of patent right |