JP2004187031A - Mobile phone using bone conduction speaker - Google Patents

Mobile phone using bone conduction speaker Download PDF

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Publication number
JP2004187031A
JP2004187031A JP2002352000A JP2002352000A JP2004187031A JP 2004187031 A JP2004187031 A JP 2004187031A JP 2002352000 A JP2002352000 A JP 2002352000A JP 2002352000 A JP2002352000 A JP 2002352000A JP 2004187031 A JP2004187031 A JP 2004187031A
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JP
Japan
Prior art keywords
bone conduction
conduction speaker
main body
mobile phone
body housing
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.)
Pending
Application number
JP2002352000A
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Japanese (ja)
Inventor
Mikio Fukuda
幹夫 福田
Current Assignee (The listed assignees may be inaccurate. Google has not performed a legal analysis and makes no representation or warranty as to the accuracy of the list.)
Temco Japan Co Ltd
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Temco Japan Co Ltd
Priority date (The priority date 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 date listed.)
Filing date
Publication date
Application filed by Temco Japan Co Ltd filed Critical Temco Japan Co Ltd
Priority to JP2002352000A priority Critical patent/JP2004187031A/en
Priority to AU2003284467A priority patent/AU2003284467A1/en
Priority to PCT/JP2003/015168 priority patent/WO2004051967A1/en
Priority to TW92134158A priority patent/TWI256231B/en
Publication of JP2004187031A publication Critical patent/JP2004187031A/en
Pending legal-status Critical Current

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    • H—ELECTRICITY
    • H04—ELECTRIC COMMUNICATION TECHNIQUE
    • H04M—TELEPHONIC COMMUNICATION
    • H04M1/00—Substation equipment, e.g. for use by subscribers
    • H04M1/02—Constructional features of telephone sets
    • H04M1/03—Constructional features of telephone transmitters or receivers, e.g. telephone hand-sets

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  • Engineering & Computer Science (AREA)
  • Signal Processing (AREA)
  • Telephone Set Structure (AREA)
  • Details Of Audible-Bandwidth Transducers (AREA)

Abstract

<P>PROBLEM TO BE SOLVED: To provide a mobile phone using a bone conduction speaker which causes no annoyance because a bone conduction speaker is installed without projecting from the phone main body case, which provides no trouble in adopting a foldable configuration and which can be used even under high noise. <P>SOLUTION: This bone conduction speaker 4 is incorporated in a main body housing 1 by fixing the diaphragm 8 of the bone conduction speaker 4 directly to an upper part on an inner face of the front side of the main body housing 1. The main body housing 1 can be provided as a foldable type. <P>COPYRIGHT: (C)2004,JPO&NCIPI

Description

【０００１】
【発明の属する技術分野】
本発明は、骨伝導スピーカーを用いた携帯電話機に関するものである。
【０００２】
【従来の技術】
近時の携帯電話の普及にはめざましいものがあり、多くの人が所持するに至っている。その普及と共に、携帯電話機の小型化、高性能化も進んできており、それに伴ない、使用されるスピーカユニットについても超小型化、薄型化の要請が高まっている。
【０００３】
携帯電話機のスピーカーとしては、一般に音圧型スピーカーが用いられている。音圧型スピーカーは電話機本体ケース上部に配備され、本体ケースの正面側上部に設けた放音孔より放音され、放音孔を耳孔に当てがって聴取する。この音圧型スピーカーの場合、振動板はコーン形状であって、小型化、薄型化するにも自ずと限界がある。
【０００４】
最近、上記音圧型スピーカーの代わりに、骨を振動させることによって音声を伝達させる骨伝導スピーカーを採用した携帯電話機が考えられている。図３及び図４は、この骨伝導スピーカーを用いた携帯電話機の構成例を示すものである。
【０００５】
骨伝導スピーカー２１は、ケース２２内に、ヨーク２３とマグネット２４とボイスコイル２５とから成る振動系と、ヨーク２３に固定される振動板２６とを、振動板２６をケース２２の内側面に固定することによって収納して構成される。骨伝導スピーカー２１は、ハウジング３１の正面側上部に、ハウリング対策用のクッション材３２を介して突出状態に取り付けられる。
【０００６】
【発明が解決しようとする課題】
上記従来の骨伝導スピーカーを用いた携帯電話機の場合、骨伝導スピーカーが突出状態に取り付けられるために邪魔になり、特に、折畳み式の構成とするには適さない。
そこで本発明は、骨伝導スピーカーが電話機本体ケースから突出することなく装備されるために骨伝導スピーカーが邪魔にならず、折畳み式の構成とするのに支障がなく、高騒音下での使用も可能な骨伝導スピーカーを用いた携帯電話機を提供することを課題とする。
【０００７】
【課題を解決するための手段】
上記課題を解決するための本発明に係る骨伝導スピーカーを用いた携帯電話機は、骨伝導スピーカーの振動板を、本体ハウジングの前面側内側面上部に直接固定することによって前記骨伝導スピーカーを前記本体ハウジングに組み込んだことを特徴とする。前記本体ハウジングは、折畳み式とすることができる。
【０００８】
【発明の実施の形態】
本発明の実施の形態を添付図面に依拠して説明する。図１は、本発明に係る骨伝導スピーカーを備えた携帯電話機の要部斜視図であり、図２は、その要部の部分切截図である。
【０００９】
図中１は本体ハウジングで、従来のものと同様に、アンテナ２、画面３及び操作キー（図示していない）を配備する。本体ハウジング１内の正面側上部に、骨伝導スピーカー４が設置される。この場合、従来のもののように、スピーカー設置部に放音孔を設ける必要はない。
【００１０】
骨伝導スピーカー４は、円形のヨーク５と、ヨーク５の周壁内面に沿って配置されるマグネット６と、ヨーク５のセンターポールに巻装されるボイスコイル７と、ヨーク５の開放側端面に定着される振動板８とから成る。骨伝導スピーカー４は、振動板８を直接本体ハウジング１の内側面に固定することによって、本体ハウジング１の上部に設置される。
【００１１】
このように、骨伝導スピーカー４が本体ハウジング１の内面に直接取り付けられるため、本体ハウジング１自体がスピーカーの振動板として動作する。従って、健聴者が使用した場合には音響スピーカーとして聞くことができ、また、本体ハウジング１の全体から振動を伝達することが可能となるため、使用者は骨導音と空気振動音とを同時に聞くことになる。従って、健聴者の場合には、より自然な音質で聞くことができ、聴力が落ちた者の使用も可能になる。また、本体ハウジング１の全体が振動板となるために、一般の音圧型スピーカーと違い、放音孔（小さな孔）と耳孔を一致させる必要はない。
【００１２】
上記のように骨伝導スピーカー４を本体ハウジング１の内面に直接取り付けた場合は、ハウリングの問題が懸念される。しかし、最近の携帯電話機はデジタル化されており、また、高性能のハウリングキャンセラーが組み込まれるために、ハウリング問題は解消される。殊に、折畳み式の電話機の場合は、構造上スピーカー組み込み部とマイクロホン組み込み部とが分離されているため、一層ハウリングの問題が起こりにくい。
【００１３】
本発明に係る携帯電話機の場合は、特に、骨伝導スピーカー４を用いているために、高騒音下においても、耳栓をする等して耳を塞ぐことにより、騒音の影響を余り受けずに通話することが可能となる。
【００１４】
【発明の効果】
本発明は上述した通りであるので、骨伝導スピーカーがハウジングの内側に組み込まれた突出部のないすっきりとしたデザインとすることができ、頭部の耳周辺部と本体ハウジングとの各当接部位に制限がなく使用態様に自由度があり、ハウリングの問題もなく、健聴者が使用しても、聴覚障害者が使用しても、違和感なく使用することができる効果がある。
【図面の簡単な説明】
【図１】本発明に係る携帯電話機の要部斜視図である。
【図２】本発明に係る携帯電話機の要部の部分切截図である。
【図３】従来の携帯電話機の要部斜視図である。
【図４】従来の携帯電話機の要部の部分切截図である。
【符号の説明】
１ 本体ハウジング
２ アンテナ
３ 画面
４ 骨伝導スピーカー
５ ヨーク
６ マグネット
７ ボイスコイル
８ 振動板[0001]
TECHNICAL FIELD OF THE INVENTION
The present invention relates to a mobile phone using a bone conduction speaker.
[0002]
[Prior art]
Recently, the spread of mobile phones has been remarkable, and many people have possessed them. Along with the spread of mobile phones, miniaturization and high performance of mobile phones have been advanced, and accordingly, demands for ultra-small and thin speaker units to be used have been increasing.
[0003]
Generally, a sound pressure type speaker is used as a speaker of a mobile phone. The sound pressure type speaker is provided in the upper part of the phone main body case, is emitted from a sound emitting hole provided in the upper part on the front side of the main body case, and listens by hitting the sound emitting hole to the ear hole. In the case of this sound pressure type speaker, the diaphragm has a cone shape, and there is naturally a limit in reducing the size and thickness.
[0004]
Recently, a portable telephone employing a bone conduction speaker that transmits sound by vibrating bones instead of the sound pressure type speaker has been considered. 3 and 4 show a configuration example of a mobile phone using the bone conduction speaker.
[0005]
The bone conduction speaker 21 has a case 22 in which a vibration system including a yoke 23, a magnet 24, and a voice coil 25 and a diaphragm 26 fixed to the yoke 23 are fixed to the inner surface of the case 22. It is stored and constructed by doing. The bone conduction speaker 21 is attached to the upper portion on the front side of the housing 31 in a protruding state via a cushioning member 32 for preventing howling.
[0006]
[Problems to be solved by the invention]
In the case of a portable telephone using the above-described conventional bone conduction speaker, the bone conduction speaker is attached in a protruding state, which is an obstacle, and is not particularly suitable for a foldable configuration.
Therefore, the present invention provides the bone conduction speaker without being protruded from the phone body case, so that the bone conduction speaker is not in the way, does not hinder the folding configuration, and can be used under high noise. It is an object to provide a mobile phone using a bone conduction speaker that can be used.
[0007]
[Means for Solving the Problems]
A portable telephone using the bone conduction speaker according to the present invention for solving the above-mentioned problems is characterized in that the bone conduction speaker is directly fixed to an upper portion of a front side inner surface of a main body housing to thereby connect the bone conduction speaker to the main body. It is characterized by being incorporated in a housing. The body housing may be foldable.
[0008]
BEST MODE FOR CARRYING OUT THE INVENTION
Embodiments of the present invention will be described with reference to the accompanying drawings. FIG. 1 is a perspective view of a main part of a mobile phone provided with a bone conduction speaker according to the present invention, and FIG. 2 is a partially cutaway view of the main part.
[0009]
In the figure, reference numeral 1 denotes a main body housing, in which an antenna 2, a screen 3 and operation keys (not shown) are provided as in the conventional case. A bone conduction speaker 4 is installed on the upper front side in the main body housing 1. In this case, it is not necessary to provide a sound emission hole in the speaker installation part unlike the conventional one.
[0010]
The bone conduction speaker 4 has a circular yoke 5, a magnet 6 disposed along the inner surface of the peripheral wall of the yoke 5, a voice coil 7 wound around a center pole of the yoke 5, and fixed to the open end surface of the yoke 5. And a vibrating plate 8. The bone conduction speaker 4 is installed on the upper part of the main body housing 1 by fixing the diaphragm 8 directly to the inner surface of the main body housing 1.
[0011]
Thus, since the bone conduction speaker 4 is directly attached to the inner surface of the main body housing 1, the main body housing 1 itself operates as a diaphragm of the speaker. Therefore, when used by a hearing person, the sound can be heard as an acoustic speaker, and the vibration can be transmitted from the entire main body housing 1. Therefore, the user can simultaneously perform the bone conduction sound and the air vibration sound. You will hear. Therefore, in the case of a normal hearing person, it is possible to hear with a more natural sound quality, and it is possible to use a hearing-impaired person. Further, since the entire main body housing 1 serves as a diaphragm, unlike a general sound pressure type speaker, it is not necessary to match a sound emission hole (small hole) with an ear hole.
[0012]
When the bone conduction speaker 4 is directly attached to the inner surface of the main body housing 1 as described above, there is a concern about howling. However, recent mobile phones are digitized, and a high-performance howling canceller is incorporated, so that the howling problem is solved. Particularly, in the case of a foldable telephone, the howling problem is less likely to occur because the speaker built-in portion and the microphone built-in portion are separated from each other in structure.
[0013]
In the case of the mobile phone according to the present invention, in particular, since the bone conduction speaker 4 is used, even under high noise, the ear is closed by wearing earplugs, etc. It is possible to make a call.
[0014]
【The invention's effect】
Since the present invention is as described above, the bone conduction speaker can have a neat design without protrusions built into the inside of the housing, and each contact portion between the peripheral portion of the head and the main body housing can be provided. There is no limitation on the use mode, there is a degree of freedom in use mode, there is no problem of howling, and there is an effect that it can be used without discomfort even if used by a hearing person or a hearing impaired person.
[Brief description of the drawings]
FIG. 1 is a perspective view of a main part of a mobile phone according to the present invention.
FIG. 2 is a partial cutaway view of a main part of the mobile phone according to the present invention.
FIG. 3 is a perspective view of a main part of a conventional mobile phone.
FIG. 4 is a partial cutaway view of a main part of a conventional mobile phone.
[Explanation of symbols]
DESCRIPTION OF SYMBOLS 1 Body housing 2 Antenna 3 Screen 4 Bone conduction speaker 5 Yoke 6 Magnet 7 Voice coil 8 Diaphragm

Claims (2)

骨伝導スピーカーの振動板を、本体ハウジングの前面側内側面上部に直接固定することによって前記骨伝導スピーカーを前記本体ハウジングに組み込んだことを特徴とする骨伝導スピーカーを用いた携帯電話機。A mobile phone using a bone conduction speaker, wherein the bone conduction speaker is incorporated in the main body housing by directly fixing a diaphragm of the bone conduction speaker to an upper portion of the inner surface on the front side of the main body housing. 前記本体ハウジングが折畳み式である請求項１に記載の骨伝導スピーカーを用いた携帯電話機。The mobile phone according to claim 1, wherein the main body housing is a foldable type.
JP2002352000A 2002-12-04 2002-12-04 Mobile phone using bone conduction speaker Pending JP2004187031A (en)

Priority Applications (4)

Application Number Priority Date Filing Date Title
JP2002352000A JP2004187031A (en) 2002-12-04 2002-12-04 Mobile phone using bone conduction speaker
AU2003284467A AU2003284467A1 (en) 2002-12-04 2003-11-27 Portable telephone using bone conduction speaker
PCT/JP2003/015168 WO2004051967A1 (en) 2002-12-04 2003-11-27 Portable telephone using bone conduction speaker
TW92134158A TWI256231B (en) 2002-12-04 2003-12-04 Mobile phone using bone conduction speaker

Applications Claiming Priority (1)

Application Number Priority Date Filing Date Title
JP2002352000A JP2004187031A (en) 2002-12-04 2002-12-04 Mobile phone using bone conduction speaker

Publications (1)

Publication Number Publication Date
JP2004187031A true JP2004187031A (en) 2004-07-02

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JP2002352000A Pending JP2004187031A (en) 2002-12-04 2002-12-04 Mobile phone using bone conduction speaker

Country Status (4)

Country Link
JP (1) JP2004187031A (en)
AU (1) AU2003284467A1 (en)
TW (1) TWI256231B (en)
WO (1) WO2004051967A1 (en)

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