JP2009100177A5 - - Google Patents

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Publication number
JP2009100177A5
JP2009100177A5 JP2007268956A JP2007268956A JP2009100177A5 JP 2009100177 A5 JP2009100177 A5 JP 2009100177A5 JP 2007268956 A JP2007268956 A JP 2007268956A JP 2007268956 A JP2007268956 A JP 2007268956A JP 2009100177 A5 JP2009100177 A5 JP 2009100177A5
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Japan
Prior art keywords
space
housing
vibrating membrane
microphone unit
vibration
Prior art date
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Application number
JP2007268956A
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Japanese (ja)
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JP5257920B2 (en
JP2009100177A (en
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Publication date
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Priority to JP2007268956A priority Critical patent/JP5257920B2/en
Priority claimed from JP2007268956A external-priority patent/JP5257920B2/en
Publication of JP2009100177A publication Critical patent/JP2009100177A/en
Publication of JP2009100177A5 publication Critical patent/JP2009100177A5/ja
Application granted granted Critical
Publication of JP5257920B2 publication Critical patent/JP5257920B2/en
Expired - Fee Related legal-status Critical Current
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Claims (10)

マイクロホンユニットを備えた携帯電話であって、
前記マイクロホンユニットは、
内部空間を有する筐体と、
前記筐体内に設けられ、前記内部空間を第１の空間と第２の空間とに分割する仕切り部と、を含み、
前記筐体には、
前記第１の空間と前記筐体の外部空間とを連通する第１の貫通孔と、
前記第２の空間と前記筐体の外部空間とを連通する第２の貫通孔とが、入力される音声の進行方向に並べて形成され、
前記仕切り部は、
前記第１の空間からの音圧と前記第２の空間からの音圧とを受けて振動する振動膜と、
前記振動膜に取り付けられた複数のピエゾ抵抗素子と、を有し、
前記仕切り部は、音波を伝搬する媒質の、前記筐体の内における前記第１の空間と第２の空間との間の相互移動を遮断するように構成されており、
前記ピエゾ抵抗素子を介して、前記振動膜の振動に基づき電気信号を出力する電気信号出力回路をさらに含む、携帯電話。 A mobile phone equipped with a microphone unit,
The microphone unit is
A housing having an internal space;
A partition portion provided in the housing and dividing the internal space into a first space and a second space,
In the case,
A first through hole communicating the first space and the external space of the housing;
A second through-hole communicating with the second space and the external space of the housing is formed side by side in the traveling direction of the input voice;
The partition is
A vibrating membrane that vibrates in response to sound pressure from the first space and sound pressure from the second space;
A plurality of piezoresistive elements attached to the vibrating membrane,
The partition portion is configured to block mutual movement between the first space and the second space in the casing of a medium that propagates sound waves,
A mobile phone further comprising an electric signal output circuit that outputs an electric signal based on vibration of the vibrating membrane via the piezoresistive element. マイクロホンユニットを備えた携帯電話であって、
前記マイクロホンユニットは、
内部空間を有する筐体と、
前記筐体内に設けられ、前記内部空間を第１の空間と第２の空間とに分割する仕切り部と、を含み、
前記筐体には、
前記第１の空間と前記筐体の外部空間とを連通する第１の貫通孔と、
前記第２の空間と前記筐体の外部空間とを連通する第２の貫通孔とが、入力される音声の進行方向に並べて形成され、
前記仕切り部は、
前記筐体内周に配置され、前記第１の空間と前記第２の空間とを連通する第３の貫通孔が形成された振動膜保持部材と、
外周が前記振動膜保持部材に密着されて前記第３の貫通孔を塞ぐとともに、前記第１の空間からの音圧と前記第２の空間からの音圧を受けて振動する振動膜と、
前記振動膜に取り付けられた複数のピエゾ抵抗素子と、を有し、
前記ピエゾ抵抗素子を介して、前記振動膜の振動に基づき電気信号を出力する電気信号出力回路をさらに含む、携帯電話。 A mobile phone equipped with a microphone unit,
The microphone unit is
A housing having an internal space;
A partition portion provided in the housing and dividing the internal space into a first space and a second space,
In the case,
A first through hole communicating the first space and the external space of the housing;
A second through-hole communicating with the second space and the external space of the housing is formed side by side in the traveling direction of the input voice;
The partition is
A vibrating membrane holding member disposed on the inner periphery of the housing and having a third through hole communicating the first space and the second space;
A vibration membrane whose outer periphery is in close contact with the vibration membrane holding member to block the third through hole, and which vibrates in response to sound pressure from the first space and sound pressure from the second space;
A plurality of piezoresistive elements attached to the vibrating membrane,
A mobile phone further comprising an electric signal output circuit that outputs an electric signal based on vibration of the vibrating membrane via the piezoresistive element. 内部空間を有する筐体と、
前記筐体内に設けられ、前記内部空間を第１の空間と第２の空間とに分割する仕切り部と、を含み、
前記筐体には、
前記第１の空間と前記筐体の外部空間とを連通する第１の貫通孔と、
前記第２の空間と前記筐体の外部空間とを連通する第２の貫通孔と、が形成され、
前記仕切り部は、
前記第１の空間からの音圧と前記第２の空間からの音圧を受けて振動する振動膜と、
前記振動膜に取り付けられた複数のピエゾ抵抗素子と、を有し、
前記仕切り部は、音波を伝搬する媒質の、前記筐体の内における前記第１の空間と第２の空間との間の相互移動を遮断するように構成されており、
前記ピエゾ抵抗素子を介して、前記振動膜の振動に基づき電気信号を出力する電気信号出力回路をさらに含む、マイクロホンユニット。 A housing having an internal space;
A partition portion provided in the housing and dividing the internal space into a first space and a second space,
In the case,
A first through hole communicating the first space and the external space of the housing;
A second through-hole communicating with the second space and the external space of the housing is formed,
The partition is
A vibrating membrane that vibrates in response to a sound pressure from the first space and a sound pressure from the second space;
A plurality of piezoresistive elements attached to the vibrating membrane,
The partition portion is configured to block mutual movement between the first space and the second space in the casing of a medium that propagates sound waves,
A microphone unit further comprising an electric signal output circuit that outputs an electric signal based on vibration of the vibrating membrane via the piezoresistive element. 内部空間を有する筐体と、
前記筐体内に設けられ、前記内部空間を第１の空間と第２の空間とに分割する仕切り部と、を含み、
前記筐体には、
前記第１の空間と前記筐体の外部空間とを連通する第１の貫通孔と、
前記第２の空間と前記筐体の外部空間とを連通する第２の貫通孔と、が形成され、
前記仕切り部は、
前記筐体内周に配置され、前記第１の空間と前記第２の空間とを連通する第３の貫通孔が形成された振動膜保持部材と、
外周が前記振動膜保持部材に密着されて前記第３の貫通孔を塞ぐとともに、前記第１の空間からの音圧と前記第２の空間からの音圧を受けて振動する振動膜と、
前記振動膜に取り付けられた複数のピエゾ抵抗素子と、を有し、
前記ピエゾ抵抗素子を介して、前記振動膜の振動に基づき電気信号を出力する電気信号出力回路をさらに含む、マイクロホンユニット。 A housing having an internal space;
A partition portion provided in the housing and dividing the internal space into a first space and a second space,
In the case,
A first through hole communicating the first space and the external space of the housing;
A second through-hole communicating with the second space and the external space of the housing is formed,
The partition is
A vibrating membrane holding member disposed on the inner periphery of the housing and having a third through hole communicating the first space and the second space;
A vibration membrane whose outer periphery is in close contact with the vibration membrane holding member to block the third through hole, and which vibrates in response to sound pressure from the first space and sound pressure from the second space;
A plurality of piezoresistive elements attached to the vibrating membrane,
A microphone unit further comprising an electric signal output circuit that outputs an electric signal based on vibration of the vibrating membrane via the piezoresistive element. 前記振動膜には複数の前記ピエゾ抵抗素子が取り付けられている、請求項３または４に記載のマイクロホンユニット。   The microphone unit according to claim 3 or 4, wherein a plurality of the piezoresistive elements are attached to the vibration film. 前記振動膜の両側に、それぞれ少なくとも１つの前記ピエゾ抵抗素子が取り付けられている、請求項３〜５のいずれか１項に記載のマイクロホンユニット。 The microphone unit according to any one of claims 3 to 5, wherein at least one of the piezoresistive elements is attached to both sides of the vibration film. 電気信号出力回路は、前記複数のピエゾ抵抗素子から構成されるブリッジ回路を有する、請求項３〜６のいずれか１項に記載のマイクロホンユニット。 The microphone unit according to any one of claims 3 to 6, wherein the electric signal output circuit includes a bridge circuit including the plurality of piezoresistive elements. 前記振動膜は、
前記振動膜保持部材に密着される基部と、
前記基部の間に張られる膜部と、を有し、
前記ピエゾ抵抗素子は、前記振動膜の外周部分に取り付けられている、請求項３から７のいずれか１項に記載のマイクロホンユニット。 The vibrating membrane is
A base that is in close contact with the vibrating membrane holding member;
A membrane portion stretched between the base portions,
The microphone unit according to any one of claims 3 to 7 , wherein the piezoresistive element is attached to an outer peripheral portion of the vibration film. 請求項３から８のいずれか１項に記載のマイクロホンユニットが実装される、携帯電話。   A mobile phone on which the microphone unit according to any one of claims 3 to 8 is mounted. 前記第１の貫通孔と前記第２の貫通孔とが外部から入力される音声の進行方向に並べて形成される、請求項９に記載の携帯電話。   The mobile phone according to claim 9, wherein the first through hole and the second through hole are formed side by side in a traveling direction of sound input from outside.
JP2007268956A 2007-10-16 2007-10-16 Mobile phone and microphone unit Expired - Fee Related JP5257920B2 (en)

Priority Applications (1)

Application Number Priority Date Filing Date Title
JP2007268956A JP5257920B2 (en) 2007-10-16 2007-10-16 Mobile phone and microphone unit

Applications Claiming Priority (1)

Application Number Priority Date Filing Date Title
JP2007268956A JP5257920B2 (en) 2007-10-16 2007-10-16 Mobile phone and microphone unit

Publications (3)

Publication Number Publication Date
JP2009100177A JP2009100177A (en) 2009-05-07
JP2009100177A5 true JP2009100177A5 (en) 2010-12-16
JP5257920B2 JP5257920B2 (en) 2013-08-07

Family

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Family Applications (1)

Application Number Title Priority Date Filing Date
JP2007268956A Expired - Fee Related JP5257920B2 (en) 2007-10-16 2007-10-16 Mobile phone and microphone unit

Country Status (1)

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JP (1) JP5257920B2 (en)

Families Citing this family (2)

* Cited by examiner, † Cited by third party
Publication number Priority date Publication date Assignee Title
KR101096548B1 (en) * 2009-11-06 2011-12-20 주식회사 비에스이 Mems microphone and manufacturing method of the same
KR101601229B1 (en) * 2014-11-17 2016-03-08 현대자동차주식회사 Micro phone sensor

Family Cites Families (6)

* Cited by examiner, † Cited by third party
Publication number Priority date Publication date Assignee Title
CA2032080C (en) * 1990-02-28 1996-07-23 John Charles Baumhauer Jr. Directional microphone assembly
JP3541673B2 (en) * 1998-04-21 2004-07-14 株式会社デンソー Telephone equipment
JP2000350296A (en) * 1999-06-04 2000-12-15 Hokuriku Electric Ind Co Ltd Microphone
JP3746217B2 (en) * 2001-09-28 2006-02-15 三菱電機株式会社 Portable communication device and microphone device for the same
JP4641217B2 (en) * 2005-06-08 2011-03-02 株式会社豊田中央研究所 Microphone and manufacturing method thereof
JP4468280B2 (en) * 2005-10-07 2010-05-26 パナソニック株式会社 Microphone device

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