JPS62103337U - - Google Patents
Info
- Publication number
- JPS62103337U JPS62103337U JP19667385U JP19667385U JPS62103337U JP S62103337 U JPS62103337 U JP S62103337U JP 19667385 U JP19667385 U JP 19667385U JP 19667385 U JP19667385 U JP 19667385U JP S62103337 U JPS62103337 U JP S62103337U
- Authority
- JP
- Japan
- Prior art keywords
- circuit
- control signal
- changeover switch
- transmitting
- power
- 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
- 238000001514 detection method Methods 0.000 claims description 6
- 230000005540 biological transmission Effects 0.000 claims description 5
Landscapes
- Transceivers (AREA)
Description
図は本考案の一実施例を示すものである。
１…送信スイツチ、５…駆動回路を構成するス
イツチングトランジスタ、７…リレースイツチ（
切換スイツチ）、８…マイク、１１…検出回路、
１２…制御回路。
The figure shows one embodiment of the present invention. 1... Transmission switch, 5... Switching transistor constituting the drive circuit, 7... Relay switch (
changeover switch), 8...microphone, 11...detection circuit,
12...Control circuit.
Claims (1)
信回路若しくは受信回路へ選択的に電源を供給す
るべく切換制御される切換スイツチと、この切換
スイツチを駆動するための駆動回路と、マイクよ
り印加される送信情報の有無を検出する検出回路
と、この検出回路からの検出出力に基づき制御信
号を出力する制御回路とを設け、送信動作時、前
記検出回路から送信情報無しを示す検出出力が所
定期間継続した際、前記制御回路から制御信号を
出力し、この制御信号に基づいて前記駆動回路を
制御し、以つて前記切換スイツチを受信回路へ電
源を供給する状態に設定し得るようになしたこと
を特徴とする無線通信機の送受切換装置。 A transmitting switch that is operated at the start of a transmitting operation, a changeover switch that is controlled to selectively supply power to the transmitting circuit or the receiving circuit, a drive circuit for driving this changeover switch, and a power supply that receives power from a microphone. A detection circuit that detects the presence or absence of transmission information and a control circuit that outputs a control signal based on the detection output from this detection circuit are provided, and during a transmission operation, the detection output from the detection circuit indicating that there is no transmission information continues for a predetermined period of time. when the control circuit outputs a control signal, the drive circuit is controlled based on the control signal, and the changeover switch is set to a state where power is supplied to the reception circuit. Features: Transmission/reception switching device for wireless communication equipment.
Priority Applications (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| JP19667385U JPS62103337U (en) | 1985-12-20 | 1985-12-20 |
Applications Claiming Priority (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| JP19667385U JPS62103337U (en) | 1985-12-20 | 1985-12-20 |
Publications (1)
| Publication Number | Publication Date |
|---|---|
| JPS62103337U true JPS62103337U (en) | 1987-07-01 |
Family
ID=31155708
Family Applications (1)
| Application Number | Title | Priority Date | Filing Date |
|---|---|---|---|
| JP19667385U Pending JPS62103337U (en) | 1985-12-20 | 1985-12-20 |
Country Status (1)
| Country | Link |
|---|---|
| JP (1) | JPS62103337U (en) |
-
1985
- 1985-12-20 JP JP19667385U patent/JPS62103337U/ja active Pending
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