JPS61131152U - - Google Patents
Info
- Publication number
- JPS61131152U JPS61131152U JP1985015224U JP1522485U JPS61131152U JP S61131152 U JPS61131152 U JP S61131152U JP 1985015224 U JP1985015224 U JP 1985015224U JP 1522485 U JP1522485 U JP 1522485U JP S61131152 U JPS61131152 U JP S61131152U
- Authority
- JP
- Japan
- Prior art keywords
- transmitter
- switching
- standby
- circuit
- receiver
- 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
- 238000006243 chemical reaction Methods 0.000 claims description 3
- 230000008878 coupling Effects 0.000 claims description 3
- 238000010168 coupling process Methods 0.000 claims description 3
- 238000005859 coupling reaction Methods 0.000 claims description 3
- 238000001514 detection method Methods 0.000 claims description 3
- 238000010586 diagram Methods 0.000 description 1
Landscapes
- Monitoring And Testing Of Transmission In General (AREA)
Description
第１図は本考案によるセツト予備方式無線送受
信機における障害検出回路の実施例を示すブロツ
ク図である。
１……結合回路、２……周波数変換回路、３…
…受信切替回路、４……論理回路、５，６……警
報信号、７……現用予備切替制御信号、８，９…
…送信機、１０，１１……受信機、１２，１４…
…切替器、１３……分岐回路、１５……共用器。
FIG. 1 is a block diagram showing an embodiment of a failure detection circuit in a set backup type wireless transceiver according to the present invention. 1... Coupling circuit, 2... Frequency conversion circuit, 3...
...Reception switching circuit, 4...Logic circuit, 5, 6...Alarm signal, 7...Working/standby switching control signal, 8, 9...
...Transmitter, 10, 11...Receiver, 12, 14...
...Switching device, 13...Branch circuit, 15...Sharing device.
Claims (1)
能として、送信機および受信機をそれぞれ現用お
よび予備用として使用するセツト予備方式無線送
受信機における障害検出回路において、回線に接
続されている送信機出力信号の一部を取り出す結
合回路と、この結合回路により取り出された送信
機出力信号の一部を受信周波数に変換する周波数
変換回路と、前記周波数変換回路からの変換受信
周波数を待機受信機に入力するための受信切替手
段と、前記待機受信機から出力される警報信号に
よつて送信機を切替える現用予備切替制御信号を
出力する論理手段とから構成したことを特徴とす
る障害検出回路。 In a fault detection circuit in a set standby wireless transceiver in which two transmitters and two receivers are switchable and the transmitter and receiver are used for active and backup purposes, respectively, the output signal of the transmitter connected to the line is detected. a coupling circuit for extracting a part of the transmitter output signal, a frequency conversion circuit for converting the part of the transmitter output signal extracted by the coupling circuit into a reception frequency, and inputting the converted reception frequency from the frequency conversion circuit to a standby receiver. 1. A fault detection circuit comprising: reception switching means for switching a transmitter; and logic means for outputting a working/standby switching control signal for switching a transmitter in response to an alarm signal output from the standby receiver.
Priority Applications (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| JP1985015224U JPS61131152U (en) | 1985-02-05 | 1985-02-05 |
Applications Claiming Priority (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| JP1985015224U JPS61131152U (en) | 1985-02-05 | 1985-02-05 |
Publications (1)
| Publication Number | Publication Date |
|---|---|
| JPS61131152U true JPS61131152U (en) | 1986-08-16 |
Family
ID=30500875
Family Applications (1)
| Application Number | Title | Priority Date | Filing Date |
|---|---|---|---|
| JP1985015224U Pending JPS61131152U (en) | 1985-02-05 | 1985-02-05 |
Country Status (1)
| Country | Link |
|---|---|
| JP (1) | JPS61131152U (en) |
Cited By (1)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| JP2012219511A (en) * | 2011-04-08 | 2012-11-12 | Tokai Rika Co Ltd | Integrated tuner |
-
1985
- 1985-02-05 JP JP1985015224U patent/JPS61131152U/ja active Pending
Cited By (1)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| JP2012219511A (en) * | 2011-04-08 | 2012-11-12 | Tokai Rika Co Ltd | Integrated tuner |