JP2014030193A5 - - Google Patents

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Publication number
JP2014030193A5
JP2014030193A5 JP2013139350A JP2013139350A JP2014030193A5 JP 2014030193 A5 JP2014030193 A5 JP 2014030193A5 JP 2013139350 A JP2013139350 A JP 2013139350A JP 2013139350 A JP2013139350 A JP 2013139350A JP 2014030193 A5 JP2014030193 A5 JP 2014030193A5
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JP
Japan
Prior art keywords
level
preamplifier
level detection
audio signal
resistor
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Application number
JP2013139350A
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English (en)
Japanese (ja)
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JP2014030193A (ja
JP6302179B2 (ja
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Priority to JP2013139350A priority Critical patent/JP6302179B2/ja
Priority claimed from JP2013139350A external-priority patent/JP6302179B2/ja
Publication of JP2014030193A publication Critical patent/JP2014030193A/ja
Publication of JP2014030193A5 publication Critical patent/JP2014030193A5/ja
Application granted granted Critical
Publication of JP6302179B2 publication Critical patent/JP6302179B2/ja
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JP2013139350A 2012-07-05 2013-07-03 マイクアンプ回路 Active JP6302179B2 (ja)

Priority Applications (1)

Application Number Priority Date Filing Date Title
JP2013139350A JP6302179B2 (ja) 2012-07-05 2013-07-03 マイクアンプ回路

Applications Claiming Priority (3)

Application Number Priority Date Filing Date Title
JP2012151321 2012-07-05
JP2012151321 2012-07-05
JP2013139350A JP6302179B2 (ja) 2012-07-05 2013-07-03 マイクアンプ回路

Publications (3)

Publication Number Publication Date
JP2014030193A JP2014030193A (ja) 2014-02-13
JP2014030193A5 true JP2014030193A5 (cg-RX-API-DMAC7.html) 2016-08-18
JP6302179B2 JP6302179B2 (ja) 2018-03-28

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ID=49878538

Family Applications (1)

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JP2013139350A Active JP6302179B2 (ja) 2012-07-05 2013-07-03 マイクアンプ回路

Country Status (2)

Country Link
US (1) US9332342B2 (cg-RX-API-DMAC7.html)
JP (1) JP6302179B2 (cg-RX-API-DMAC7.html)

Families Citing this family (6)

* Cited by examiner, † Cited by third party
Publication number Priority date Publication date Assignee Title
US20160134975A1 (en) * 2014-11-12 2016-05-12 Knowles Electronics, Llc Microphone With Trimming
CN105744452B (zh) * 2014-12-12 2019-04-02 瑞声声学科技(深圳)有限公司 Mems麦克风电路
US10509624B2 (en) * 2017-01-30 2019-12-17 Cirrus Logic, Inc. Single-bit volume control
KR20210013152A (ko) 2018-05-24 2021-02-03 더 리서치 파운데이션 포 더 스테이트 유니버시티 오브 뉴욕 정전 용량 센서
CN108737947A (zh) * 2018-08-27 2018-11-02 湖南声仪测控科技有限责任公司 一种应用mems麦克风的声校准器
CN114697844B (zh) * 2022-04-01 2023-05-30 瑞声声学科技(深圳)有限公司 麦克风电路、麦克风模组及麦克风声压过载点提升方法

Family Cites Families (13)

* Cited by examiner, † Cited by third party
Publication number Priority date Publication date Assignee Title
JPS497854B1 (cg-RX-API-DMAC7.html) * 1969-04-16 1974-02-22
US4658425A (en) * 1985-04-19 1987-04-14 Shure Brothers, Inc. Microphone actuation control system suitable for teleconference systems
US5235637A (en) * 1989-01-26 1993-08-10 Plantronics, Inc. Voice communication link interface
JPH08111711A (ja) * 1994-10-13 1996-04-30 Nec Corp 拡声電話装置
JPH08265893A (ja) * 1995-03-20 1996-10-11 Aiwa Co Ltd マイクロホン感度調整装置およびそれを使用した通信機
JP3560306B2 (ja) * 1997-03-18 2004-09-02 株式会社ユニトロン カラオケ装置
JP2001060836A (ja) * 1999-08-20 2001-03-06 Matsushita Electric Ind Co Ltd マイク装置
JP2001102875A (ja) 1999-10-01 2001-04-13 Hosiden Corp 半導体増幅回路及び半導体エレクトレットコンデンサマイクロホン
JP2008028879A (ja) * 2006-07-25 2008-02-07 Sanyo Electric Co Ltd マイクアンプ
JP4959315B2 (ja) 2006-12-18 2012-06-20 オンセミコンダクター・トレーディング・リミテッド 静電容量変化検出回路及びコンデンサマイクロホン装置
CN102224675B (zh) * 2008-11-25 2014-04-02 应美盛股份有限公司 动态偏置放大器
JP5319368B2 (ja) 2009-04-03 2013-10-16 セミコンダクター・コンポーネンツ・インダストリーズ・リミテッド・ライアビリティ・カンパニー コンデンサマイクの増幅回路
US20130129117A1 (en) * 2011-11-21 2013-05-23 Henrik Thomsen Audio amplification circuit

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