JPH0752993B2 - Microphone device - Google Patents

Microphone device

Info

Publication number
JPH0752993B2
JPH0752993B2 JP10734187A JP10734187A JPH0752993B2 JP H0752993 B2 JPH0752993 B2 JP H0752993B2 JP 10734187 A JP10734187 A JP 10734187A JP 10734187 A JP10734187 A JP 10734187A JP H0752993 B2 JPH0752993 B2 JP H0752993B2
Authority
JP
Japan
Prior art keywords
converter
microphone
output
vibration
microphone device
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 - Lifetime
Application number
JP10734187A
Other languages
Japanese (ja)
Other versions
JPS62276998A (en
Inventor
平太郎 中島
潔文 稲永
一正 ▲高▼橋
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.)
Sony Corp
Original Assignee
Sony Corp
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 Sony Corp filed Critical Sony Corp
Priority to JP10734187A priority Critical patent/JPH0752993B2/en
Publication of JPS62276998A publication Critical patent/JPS62276998A/en
Publication of JPH0752993B2 publication Critical patent/JPH0752993B2/en
Anticipated expiration legal-status Critical
Expired - Lifetime legal-status Critical Current

Links

Description

【発明の詳細な説明】 本発明はマイクロホン装置に係り、特に、デジタル及び
アナログ信号出力の得られるマイクロホン装置に関す
る。
The present invention relates to a microphone device, and more particularly to a microphone device capable of obtaining digital and analog signal outputs.

従来のマイクロホン装置は、マイクロホンケース内に音
波によって振動膜ないし振動板に生じる機械的振動に比
例したアナログ電気信号を得る振動−電気変換器と、こ
の振動−電気変換器からのアナログ電気信号を増幅する
アンプとが収納され、マイクロホン出力としてアナログ
信号が取り出される構造になっている。
A conventional microphone device includes a vibration-electric converter for obtaining an analog electric signal proportional to mechanical vibration generated in a vibrating membrane or a diaphragm by a sound wave in a microphone case, and an analog electric signal from the vibration-electric converter is amplified. And an amplifier for receiving analog signals as a microphone output.

しかし、このような従来のマイクロホン装置では、マイ
クロホン装置からのケーブルが長くなると高域成分が劣
化したり、雑音が混入するなどの欠点がある。
However, such a conventional microphone device has drawbacks such that a high frequency component is deteriorated and noise is mixed when a cable from the microphone device is long.

振動−電気変換器からのアナログ電気信号で適当な周波
数の電波を変調し、その被変調波を送信する無線マイク
ロホン装置でも、電界強度によりやはり雑音が混入する
などの欠点がある。
A wireless microphone device that modulates a radio wave of an appropriate frequency with an analog electric signal from a vibration-electricity converter and transmits the modulated wave also has a drawback that noise is mixed due to the electric field strength.

この発明は、これらの欠点や不都合のないまったく新規
なマイクロホン装置を提供するものである。
The present invention provides a completely new microphone device without these drawbacks and disadvantages.

図はこの発明のマイクロホン装置の一例でマイクロホン
ケース(1)内に、振動−電気変換器(2)と、この振
動−電気変換器(2)からのアナログ電気信号を増幅す
るアンプ(3)と、このアンプ(3)を通じたアナログ
電気信号をデジタル電気信号に変換するA−D変換器
(4)と、このA−D変換器(4)のデジタル出力及び
上述のアンプ(3)からのアナログ出力を切換える切換
手段(5)を収納する。
The figure shows an example of the microphone device of the present invention, in a microphone case (1), a vibration-electricity converter (2) and an amplifier (3) for amplifying an analog electric signal from the vibration-electricity converter (2). , An AD converter (4) for converting an analog electric signal through the amplifier (3) into a digital electric signal, a digital output of the AD converter (4) and an analog from the above-mentioned amplifier (3) A switching means (5) for switching the output is housed.

切換手段(5)はマイクロホンケース(1)の外部から
操作出来る様に取り付けられた例えばスライドスイッチ
であり、このスライドスイッチは接点a,bとコモン接点
c並にスライド接片(6)より成り、A−D変換器
(4)の出力端は接点aに接続され、アンプ(3)の出
力端は接点bに接続され、コモン接点cはマイクロホン
ケース(1)の外部に導出されたケーブル(7)に接続
されている。切換手段(5)のスライド接片(6)はコ
モン接点cと接点a間或はコモン接点cと接点b間をス
ライドすることで接点間を橋絡し、A−D変換器(4)
のデジタル出力又はアンプ(3)からのアナログ信号出
力をコモン接点cを通してケーブル(7)から導出する
様に成されている。
The switching means (5) is, for example, a slide switch mounted so as to be operated from the outside of the microphone case (1), and this slide switch is composed of a slide contact piece (6) along with contacts a and b and a common contact c. The output end of the AD converter (4) is connected to the contact a, the output end of the amplifier (3) is connected to the contact b, and the common contact c is the cable (7) led to the outside of the microphone case (1). )It is connected to the. The sliding contact piece (6) of the switching means (5) bridges between the contacts by sliding between the common contact c and the contact a or between the common contact c and the contact b, and the A-D converter (4).
Or the analog signal output from the amplifier (3) is derived from the cable (7) through the common contact c.

ここで、A−D変換器(4)におけるA−D変換方法と
しては、パルス幅変調(PWM),パルス位置変調(PP
M),パルス数変調(PNM),パルス符号変調(PCM)な
どの方法をとることができる。特にパルス符号変調が好
適である。
Here, as the A / D conversion method in the A / D converter (4), pulse width modulation (PWM) and pulse position modulation (PP
M), pulse number modulation (PNM), pulse code modulation (PCM), etc. can be used. Particularly, pulse code modulation is suitable.

この発明のようにマイクロホンケース(1)内にA−D
変換器(4)を収納してマイクロホン出力としてデジタ
ル出力を取り出すようにする場合には、スタジオなどの
受信設備もそれに対応した構成でデジタル入力信号を受
け入れる構成とする必要がある。しかし、従来のマイク
ロホン装置は前述のようにマイクロホン出力としてアナ
ログ出力を取り出すようになっており、スタジオなどの
受信設備もそれに対応した構成になっている。
As in the present invention, the AD in the microphone case (1)
When the converter (4) is housed and the digital output is taken out as the microphone output, the receiving equipment such as a studio needs to be configured to accept the digital input signal with a corresponding configuration. However, the conventional microphone device takes out an analog output as the microphone output as described above, and the receiving equipment such as a studio has a configuration corresponding thereto.

図はこの点を考慮していずれの受信設備でも使用出来る
構成となっている。
Considering this point, the figure has a configuration that can be used in any receiving equipment.

この発明によれば、マイクロホンケース(1)内に振動
−電気変換器(2)とこの振動−電気変換器(2)から
のアナログ電気信号をデジタル電気信号に変換するA−
D変換器(4)と切換手段(5)を収納し、マイクロホ
ン出力としてデジタル又はアナログ信号出力を取り出す
ものであるから、マイクロホン装置からの出力信号を受
ける受信装置側(端的に言えば、マイクロホンが接続さ
れる装置、例えばテープレコーダ、ミキシング装置等)
がデジタル入力対応になっていない場合はマイクロホン
装置の切換をアナログ側に切換操作することによりアナ
ログ用の受信装置を利用できる。
According to the invention, the vibration-electric converter (2) in the microphone case (1) and the analog electric signal from the vibration-electric converter (2) are converted into digital electric signals A-.
Since the D converter (4) and the switching means (5) are housed and the digital or analog signal output is taken out as the microphone output, the receiving device side (in short, the microphone is Connected device, eg tape recorder, mixing device, etc.)
If is not compatible with digital input, an analog receiver can be used by switching the microphone device to the analog side.

又マイクロホン装置からの出力が伝送中に減衰してしま
ってもいいような場合、例えば、パーティ等の司会用の
マイクとして使用する場合や、伝送する距離が比較的短
い場合、更には伝送中に若干ノイズが混入もしくは外部
からの影響を受けてもよい場合はあえてデジタル変換し
て伝送する必要はない。この場合は切換手段をアナログ
出力側にし、レコーディング時など外部からの影響を受
けたくない場合、更には、長距離電送をするような場合
は、切換手段をデジタル出力側に切換えればよい。
Also, if the output from the microphone device may be attenuated during transmission, for example, when used as a microphone for hosting a party, or when the transmission distance is relatively short, or even during transmission. If some noise may be mixed or may be affected by the outside, it is not necessary to intentionally convert it into digital data for transmission. In this case, the switching means is set to the analog output side, and when it is not desired to be affected by the outside such as recording, or when the long distance transmission is performed, the switching means may be switched to the digital output side.

更に本発明ではA−D変換してデジタル出力を取り出す
ときには信号情報の劣化のない音声信号が得られる。
Further, according to the present invention, when the A / D conversion is performed to take out the digital output, a voice signal without deterioration of signal information can be obtained.

【図面の簡単な説明】[Brief description of drawings]

図は本発明の1実施例を示すマイクロホン装置の系統図
である。 (1)はマイクロホンケース、(2)は振動−電気変換
器、(4)はA−D変換器である。
FIG. 1 is a system diagram of a microphone device showing an embodiment of the present invention. (1) is a microphone case, (2) is a vibration-electricity converter, and (4) is an AD converter.

フロントページの続き (56)参考文献 実開 昭50−26718(JP,U) 実開 昭48−61825(JP,U) 特公 昭49−36609(JP,B1) 実公 昭50−19816(JP,Y1)Continuation of the front page (56) Bibliography Sho 50-26718 (JP, U) Steady opening 48-61825 (JP, U) Japanese Patent Sho 49-36609 (JP, B1) Real Sho 50-19816 (JP , Y1)

Claims (1)

【特許請求の範囲】[Claims] 【請求項1】振動−電気変換器と、 上記振動−電気変換器から出力される出力信号を増幅す
るアンプと、 上記アンプからの出力信号をデジタル信号に変換するA
−D変換器とを備え、上記振動−電気変換器、上記アン
プ及び上記A−D変換器をマイクロホンケース内に収納
してなるマイクロホン装置であって、 上記アンプからの出力信号と、上記A−D変換器からの
出力信号とを選択的に切り換えて単一のケーブルより出
力する切換手段を上記マイクロホンケースに配してなる
ことを特徴とするマイクロホン装置。
1. A vibration-electricity converter, an amplifier for amplifying an output signal output from the vibration-electricity converter, and an A for converting an output signal from the amplifier into a digital signal.
A microphone device comprising a -D converter, and the vibration-electricity converter, the amplifier, and the AD converter housed in a microphone case, wherein the output signal from the amplifier and the A- A microphone device, wherein switching means for selectively switching an output signal from a D converter and outputting the signal from a single cable is arranged in the microphone case.
JP10734187A 1987-04-30 1987-04-30 Microphone device Expired - Lifetime JPH0752993B2 (en)

Priority Applications (1)

Application Number Priority Date Filing Date Title
JP10734187A JPH0752993B2 (en) 1987-04-30 1987-04-30 Microphone device

Applications Claiming Priority (1)

Application Number Priority Date Filing Date Title
JP10734187A JPH0752993B2 (en) 1987-04-30 1987-04-30 Microphone device

Related Parent Applications (1)

Application Number Title Priority Date Filing Date
JP16622679A Division JPS5689195A (en) 1979-12-20 1979-12-20 Microphone device

Publications (2)

Publication Number Publication Date
JPS62276998A JPS62276998A (en) 1987-12-01
JPH0752993B2 true JPH0752993B2 (en) 1995-06-05

Family

ID=14456596

Family Applications (1)

Application Number Title Priority Date Filing Date
JP10734187A Expired - Lifetime JPH0752993B2 (en) 1987-04-30 1987-04-30 Microphone device

Country Status (1)

Country Link
JP (1) JPH0752993B2 (en)

Families Citing this family (1)

* Cited by examiner, † Cited by third party
Publication number Priority date Publication date Assignee Title
DE10320190B4 (en) 2003-05-07 2005-07-07 Sennheiser Electronic Gmbh & Co. Kg detection device

Also Published As

Publication number Publication date
JPS62276998A (en) 1987-12-01

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