JPH0251430U - - Google Patents
Info
- Publication number
- JPH0251430U JPH0251430U JP1988129494U JP12949488U JPH0251430U JP H0251430 U JPH0251430 U JP H0251430U JP 1988129494 U JP1988129494 U JP 1988129494U JP 12949488 U JP12949488 U JP 12949488U JP H0251430 U JPH0251430 U JP H0251430U
- Authority
- JP
- Japan
- Prior art keywords
- mute
- input terminal
- circuit
- amplifier circuit
- 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.)
- Pending
Links
- 230000003321 amplification Effects 0.000 description 3
- 238000003199 nucleic acid amplification method Methods 0.000 description 3
- 238000010586 diagram Methods 0.000 description 2
Description
第１図、第２図は本考案にかかる増幅回路を備
えた無線通信機の一実施例のブロツク図、第３図
は従来の増幅回路のブロツク図である。
１…マイク、２…マイク出力増幅回路、３…第
１ミユート回路、３′…第２ミユート回路、４…
ＰＴＴスイツチ（ミユート解除手段）、５…デー
タ入力端子、６…データ入力増幅回路、７…増幅
回路、８…無線通信機本体。
1 and 2 are block diagrams of an embodiment of a wireless communication device equipped with an amplifier circuit according to the present invention, and FIG. 3 is a block diagram of a conventional amplifier circuit. 1... Microphone, 2... Microphone output amplification circuit, 3... First mute circuit, 3'... Second mute circuit, 4...
PTT switch (mute release means), 5...data input terminal, 6...data input amplification circuit, 7...amplification circuit, 8...wireless communication device body.
Claims (1)
増幅回路において、 入力信号を遮断するミユート回路と、 該ミユート回路の動作を解除するミユート解除
手段とを設けたことを特徴とする増幅回路。 (2) マイク入力のミユート回路に対するミユー
ト解除手段が、マイクのＰＴＴスイツチを利用す
ることを特徴とする請求項(1)記載の増幅回路を
備えた無線通信機。 (3) データ入力端子からの入力に対するミユー
ト回路に対するミユート解除手段が、データ入力
端子に接続される機器の出力により制御される請
求項(1)乃至(2)記載の増幅回路を備えた無線通信
機。[Scope of Claim for Utility Model Registration] (1) In an amplifier circuit equipped with a microphone input terminal and a data input terminal, a mute circuit for cutting off an input signal and a mute canceling means for canceling the operation of the mute circuit are provided. An amplifier circuit featuring: (2) A radio communication device equipped with an amplifier circuit according to claim 1, wherein the mute canceling means for the microphone input mute circuit utilizes a PTT switch of the microphone. (3) Wireless communication equipped with an amplifier circuit according to claim 1 or 2, wherein the mute release means for the mute circuit in response to input from the data input terminal is controlled by the output of a device connected to the data input terminal. Machine.
Priority Applications (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| JP1988129494U JPH0251430U (en) | 1988-09-30 | 1988-09-30 |
Applications Claiming Priority (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| JP1988129494U JPH0251430U (en) | 1988-09-30 | 1988-09-30 |
Publications (1)
| Publication Number | Publication Date |
|---|---|
| JPH0251430U true JPH0251430U (en) | 1990-04-11 |
Family
ID=31383821
Family Applications (1)
| Application Number | Title | Priority Date | Filing Date |
|---|---|---|---|
| JP1988129494U Pending JPH0251430U (en) | 1988-09-30 | 1988-09-30 |
Country Status (1)
| Country | Link |
|---|---|
| JP (1) | JPH0251430U (en) |
Citations (1)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| JPS63209326A (en) * | 1987-02-26 | 1988-08-30 | Ricoh Co Ltd | Radio communication system |
-
1988
- 1988-09-30 JP JP1988129494U patent/JPH0251430U/ja active Pending
Patent Citations (1)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| JPS63209326A (en) * | 1987-02-26 | 1988-08-30 | Ricoh Co Ltd | Radio communication system |
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