JPS6223199Y2 - - Google Patents
Info
- Publication number
- JPS6223199Y2 JPS6223199Y2 JP1978169282U JP16928278U JPS6223199Y2 JP S6223199 Y2 JPS6223199 Y2 JP S6223199Y2 JP 1978169282 U JP1978169282 U JP 1978169282U JP 16928278 U JP16928278 U JP 16928278U JP S6223199 Y2 JPS6223199 Y2 JP S6223199Y2
- Authority
- JP
- Japan
- Prior art keywords
- sound hole
- close
- sound
- hearing aid
- microphone
- 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
Links
- 230000003203 everyday effect Effects 0.000 description 4
- 230000002354 daily effect Effects 0.000 description 2
- 230000004907 flux Effects 0.000 description 2
- 230000006870 function Effects 0.000 description 2
- 239000000725 suspension Substances 0.000 description 2
- 238000010586 diagram Methods 0.000 description 1
- 230000000694 effects Effects 0.000 description 1
- 238000009413 insulation Methods 0.000 description 1
- 238000000034 method Methods 0.000 description 1
- 230000035945 sensitivity Effects 0.000 description 1
- 239000004575 stone Substances 0.000 description 1
Description
【考案の詳細な説明】
本考案は、補聴器の改良、特に補聴器の電話聴
取機能の改良に関する。DETAILED DESCRIPTION OF THE INVENTION The present invention relates to an improvement in a hearing aid, and in particular to an improvement in the telephone listening function of a hearing aid.
従来にあつては、補聴器で電話からの音声を聴
取する場合、補聴器に設けられた日常会話用の通
常のマイクロホンか、あるいはテレホンコイルの
いずれかで電話器からの信号を拾つて増幅し、イ
ヤホンにて聴取していた。 Conventionally, when listening to sounds from a telephone using a hearing aid, the signal from the telephone is picked up and amplified using either a normal microphone for everyday conversations installed in the hearing aid or a telephone coil, and then the signal is transferred to the earphone. I was listening at.
しかしながら、日常会話用マイクロホンを利用
して聴取する場合には、周囲雑音に妨害され、電
話器からの必要な信号音を聞きとりづらい欠点を
有していた。またテレホンコイルを利用して聴取
するに当つては原理的に電話器本体あるいは受話
器からのリーケージフラツクスとテレホンコイル
とを磁気的にカツプリングさせて聞いているため
に周囲雑音による妨害はなく好ましい手段ではあ
るが、近時、電話器の発達とともに性能が向上
し、リーケージフラツクスが減少しつつあり、こ
のテレホンコイルでは感度が低くなり実用性が少
なくなつてきている。 However, when listening using a microphone for everyday conversation, it is difficult to hear the necessary signal sound from the telephone due to interference from surrounding noise. In addition, when listening using a telephone coil, in principle, the leakage flux from the telephone body or receiver is magnetically coupled to the telephone coil, so there is no interference from ambient noise, making this a preferable method. However, in recent years, with the development of telephone equipment, performance has improved and leakage flux has been reduced, and this telephone coil has become less sensitive and less practical.
本考案は、上述の問題点に鑑み、補聴器で電話
を聞く場合に、従来のマイクロホンやテレホンコ
イルを使用することなく、この技術分野では全く
新規な手段である接話マイクロホンを利用して電
話聴取機能を果さんとするものである。 In view of the above-mentioned problems, the present invention utilizes a close-talking microphone, which is a completely new means in this technical field, to listen to telephone calls with hearing aids, without using conventional microphones or telephone coils. It is intended to fulfill its functions.
ここに接話マイクロホン１とは振動板の両面に
それぞれ通じる音孔を適宜に設けてなるものであ
り、たとえば第１図に示すごとくケース２の対向
する両面２ａ，２ｂに、それぞれ音孔３ａ，３ｂ
を形成し、しかもケース２の内部に、上記音孔３
ａと音孔３ｂとを結ぶ直線に対して直角方向に振
動板（図示せず）を張設してなるものである。し
たがつて出力の大きさに比例する振動板の振幅は
それぞれの音孔３ａ，３ｂから入る音の音圧の差
によつて決定される。さらに性能面について述べ
る。近距離からの音は接話マイクロホン１の前方
音孔３ａと後方音孔３ｂとの音圧差が大きいため
出力は大きくなる。一方、遠距離からの音は前方
音孔３ａと後方音孔３ｂとの音圧差が小さくなる
ため出力も小さくなる。この傾向は低域周波数ほ
ど顕著である。したがつて遠距離の騒音に対する
近距離の信号音のSN比が良くなるものである。
なお、後方音孔３ｂを遮蔽すれば、音源からの距
離の影響を受けず、日常会話用の補聴器マイクロ
ホンとしても使用できる。 The close-talking microphone 1 here is one in which sound holes communicating with each other are provided on both sides of a diaphragm as appropriate.For example, as shown in FIG. 3b
In addition, the sound hole 3 is formed inside the case 2.
A diaphragm (not shown) is provided in a direction perpendicular to the straight line connecting the sound hole 3b and the sound hole 3b. Therefore, the amplitude of the diaphragm, which is proportional to the magnitude of the output, is determined by the difference in sound pressure of the sound entering through the respective sound holes 3a and 3b. We will further discuss the performance aspects. Since the sound pressure difference between the front sound hole 3a and the rear sound hole 3b of the close-talking microphone 1 is large, the output of sound from a short distance is large. On the other hand, for sounds from a long distance, the sound pressure difference between the front sound hole 3a and the rear sound hole 3b becomes smaller, so the output becomes smaller. This tendency is more pronounced at lower frequencies. Therefore, the signal to noise ratio of a short distance signal sound to a long distance noise is improved.
Note that if the rear sound hole 3b is shielded, it is not affected by the distance from the sound source and can be used as a hearing aid microphone for everyday conversation.
以下、本考案の一実施例を図に沿つて説明す
る。第２図は耳掛形補聴器の一部側断面図であ
る。接話マイクロホン１は、補聴器ケース１１に
設けられたケース前方音孔１２ａの近傍に設置さ
れる。ケース前方音孔１２ａは接話マイクロホン
１の前方音孔３ａに通じる音孔であり、ケース側
方音孔１２ｂは接話マイクロホン１の後方音孔３
ｂに通じる。補聴器ケース１１の側面に設けられ
た音孔ぜある。第３図に示すごとく接話マイクロ
ホン１はマイクサスペンシヨン１３で周囲を保護
支持されており、かつ、マイクサスペンシヨン１
３の両端部１３ａ，１３ｂが、補聴器ケース１１
の内部に設けられた凹部１４に嵌合固定されてい
る。１５は、接話マイクロホン１を電話聴取用あ
るいは日常会話用に切換えるための切換スイツチ
であり、一端部１５ａは補聴器ケース１の外方に
突出しており、他端部１５ｂは補聴器ケース１に
固定されたヒンジ作用を有する部材１７と結合し
ており、結果として切換スイツチ１５はヒンジ動
作を行う。第４図に示すごとく切換スイツチ１５
にはゴム等の遮音体１６が貼付されており、接話
マイクロホン１の後方音孔３ｂを塞ぐものであ
る。第２図は、接話マイクロホン１の後方音孔３
ｂを塞ぎ、日常会話用とした場合を示している。 An embodiment of the present invention will be described below with reference to the drawings. FIG. 2 is a partial side sectional view of the behind-the-ear hearing aid. The close-talking microphone 1 is installed near a case front sound hole 12a provided in a hearing aid case 11. The case front sound hole 12a is a sound hole communicating with the front sound hole 3a of the close-talking microphone 1, and the case side sound hole 12b is a sound hole communicating with the rear sound hole 3 of the close-talking microphone 1.
Leads to b. There is a sound hole provided on the side of the hearing aid case 11. As shown in FIG. 3, the close-talking microphone 1 is protected and supported by a microphone suspension 13, and the microphone suspension 1
Both ends 13a and 13b of 3 are connected to the hearing aid case 11.
It is fitted and fixed in a recess 14 provided inside. Reference numeral 15 denotes a switch for switching the close-talking microphone 1 for listening to telephone calls or for everyday conversation; one end 15a protrudes outside the hearing aid case 1, and the other end 15b is fixed to the hearing aid case 1. As a result, the selector switch 15 performs a hinge action. As shown in Fig. 4, selector switch 15
A sound insulating body 16 made of rubber or the like is pasted to cover the rear sound hole 3b of the close-talking microphone 1. Figure 2 shows the rear sound hole 3 of the close-talking microphone 1.
This shows the case where b is closed and used for daily conversation.
以上述べてきたごとく本考案は、補聴器に接話
マイクロホンを採用することにより、電話聴取の
際に目的の音源である受話器からの音は、補聴器
に近接して、しかも周囲雑音は補聴器内の接話マ
イクロホンから離れているので相殺し、よつて周
囲雑音に妨害されることなく感度の良い状態で補
聴器による電話聴取が可能となるものである。 As described above, the present invention employs a close-talking microphone in a hearing aid, so that when listening to a telephone call, the sound from the receiver, which is the target sound source, is brought close to the hearing aid, and ambient noise is removed from the connection inside the hearing aid. Since it is located far away from the speech microphone, it cancels out the noise, making it possible to listen to a telephone call with a hearing aid with good sensitivity without being interfered with by ambient noise.
さらに接話マイクロホンの後方音孔を随時遮音
する遮音体を設けることにより、接話マイクロホ
ンを電話聴取用としてのみならず、日常会話用と
しても使用でき一石二鳥の効果をあげるものであ
る。 Furthermore, by providing a sound insulating body that insulates the rear sound hole of the close-talking microphone from time to time, the close-talking microphone can be used not only for listening to telephone calls, but also for daily conversation, thereby achieving the effect of killing two birds with one stone.
第１図は本考案に係る接話マイクロホンの一実
施例を示す概観図。第２図は、本考案の一実施例
を示す耳掛形補聴器の一部側断面図。第３図は第
２図における−断面図。第４図は第２図にお
ける−断面図。
１：接話マイクロホン、３ａ：前方音孔、３
ｂ：後方音孔、１１：補聴器ケース、１２ａ，１
２ｂ：音孔、１６：遮音体。
FIG. 1 is an overview diagram showing an embodiment of a close-talking microphone according to the present invention. FIG. 2 is a partial side sectional view of a behind-the-ear hearing aid showing an embodiment of the present invention. FIG. 3 is a cross-sectional view taken from FIG. 2. FIG. 4 is a cross-sectional view taken from FIG. 1: Close-talking microphone, 3a: Front sound hole, 3
b: Rear sound hole, 11: Hearing aid case, 12a, 1
2b: sound hole, 16: sound insulation body.
Claims (1)
１に前記接話マイクロホン１の前方音孔３ａに通
じる音孔１２ａと、前記接話マイクロホン１の後
方音孔３ｂに通じる音孔１２ｂとを設けており、
しかも接話マイクロホン１の後方音孔３ｂを随
時、遮音する遮音体１６を設けてなる補聴器。 Built-in close-talking microphone 1, hearing aid case 1
1 is provided with a sound hole 12a communicating with the front sound hole 3a of the close-talking microphone 1, and a sound hole 12b communicating with the rear sound hole 3b of the close-talking microphone 1,
Moreover, the hearing aid is provided with a sound insulating body 16 that insulates the rear sound hole 3b of the close-talk microphone 1 from sound at any time.
Priority Applications (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| JP1978169282U JPS6223199Y2 (en) | 1978-12-08 | 1978-12-08 |
Applications Claiming Priority (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| JP1978169282U JPS6223199Y2 (en) | 1978-12-08 | 1978-12-08 |
Publications (2)
| Publication Number | Publication Date |
|---|---|
| JPS5587799U JPS5587799U (en) | 1980-06-17 |
| JPS6223199Y2 true JPS6223199Y2 (en) | 1987-06-12 |
Family
ID=29171209
Family Applications (1)
| Application Number | Title | Priority Date | Filing Date |
|---|---|---|---|
| JP1978169282U Expired JPS6223199Y2 (en) | 1978-12-08 | 1978-12-08 |
Country Status (1)
| Country | Link |
|---|---|
| JP (1) | JPS6223199Y2 (en) |
Citations (1)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| JPS5028707A (en) * | 1973-05-01 | 1975-03-24 |
-
1978
- 1978-12-08 JP JP1978169282U patent/JPS6223199Y2/ja not_active Expired
Patent Citations (1)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| JPS5028707A (en) * | 1973-05-01 | 1975-03-24 |
Also Published As
| Publication number | Publication date |
|---|---|
| JPS5587799U (en) | 1980-06-17 |
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