JPS59114640U - Radio for receiving broadcasts in tunnels - Google Patents
Radio for receiving broadcasts in tunnelsInfo
- Publication number
- JPS59114640U JPS59114640U JP677483U JP677483U JPS59114640U JP S59114640 U JPS59114640 U JP S59114640U JP 677483 U JP677483 U JP 677483U JP 677483 U JP677483 U JP 677483U JP S59114640 U JPS59114640 U JP S59114640U
- Authority
- JP
- Japan
- Prior art keywords
- radio
- tunnel
- tunnels
- receiving broadcasts
- value
- 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
Abstract
(57)【要約】本公報は電子出願前の出願データであるた
め要約のデータは記録されません。(57) [Abstract] This bulletin contains application data before electronic filing, so abstract data is not recorded.
Description
第１図は本考案になるトンネル内放送受信用ラジオの構
成を示すプロックダムヤダラム、第２図は動作のフロー
チャートである。
１：アンテナ、２ニラジオ受信回路、３：感度検出回路
、４：トンネルスイッチ、５：選局制御回路。FIG. 1 shows the configuration of a radio for receiving broadcasts in tunnels according to the present invention, and FIG. 2 is a flowchart of its operation. 1: Antenna, 2: Radio receiving circuit, 3: Sensitivity detection circuit, 4: Tunnel switch, 5: Tuning control circuit.
Claims (1)
ネルに入ったときに操作されるトンネルスイッチと、該
トンネルスイッチがオンされているとき前記感度検出回
路の検出する受信強度を予め設定した電界基準値と比較
し、基準値以上の場合は当該受信局をそのまま受信し、
基準値以下の場合には他局電波を自動的にサーチするよ
う制御する選局制御回路とを備えたことを特徴とするト
ンネル内放送受信用ラジオ。a sensitivity detection circuit that detects the reception strength of radio waves; a tunnel switch that is operated when entering a tunnel; and an electric field standard that presets the reception strength detected by the sensitivity detection circuit when the tunnel switch is turned on. Compare it with the value, and if it is above the standard value, receive the relevant receiving station as is,
1. A radio for receiving broadcasts in a tunnel, comprising: a channel selection control circuit that automatically searches for radio waves from other stations when the signal is below a reference value.
Priority Applications (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| JP677483U JPS59114640U (en) | 1983-01-21 | 1983-01-21 | Radio for receiving broadcasts in tunnels |
Applications Claiming Priority (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| JP677483U JPS59114640U (en) | 1983-01-21 | 1983-01-21 | Radio for receiving broadcasts in tunnels |
Publications (1)
| Publication Number | Publication Date |
|---|---|
| JPS59114640U true JPS59114640U (en) | 1984-08-02 |
Family
ID=30138314
Family Applications (1)
| Application Number | Title | Priority Date | Filing Date |
|---|---|---|---|
| JP677483U Pending JPS59114640U (en) | 1983-01-21 | 1983-01-21 | Radio for receiving broadcasts in tunnels |
Country Status (1)
| Country | Link |
|---|---|
| JP (1) | JPS59114640U (en) |
-
1983
- 1983-01-21 JP JP677483U patent/JPS59114640U/en active Pending
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