JPS6439836A - Dial lock display device in automobile telephone system - Google Patents
Dial lock display device in automobile telephone systemInfo
- Publication number
- JPS6439836A JPS6439836A JP62197045A JP19704587A JPS6439836A JP S6439836 A JPS6439836 A JP S6439836A JP 62197045 A JP62197045 A JP 62197045A JP 19704587 A JP19704587 A JP 19704587A JP S6439836 A JPS6439836 A JP S6439836A
- Authority
- JP
- Japan
- Prior art keywords
- signal
- dial lock
- square wave
- outer circle
- detecting
- 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.)
- Granted
Links
Landscapes
- Mobile Radio Communication Systems (AREA)
Abstract
PURPOSE:To prevent the misconception by displaying the detection on a dial lock display means, when a repeated signal detecting means for detecting whether a signal of an outer circle display signal line is a repeated signal of high/low levels or not has detected the repeated signal. CONSTITUTION:A square wave detector 18 being a repeated signal detecting means is connected to an outer circle display signal line 5, and this square wave detector 19 detects whether a signal which is sent out to the outer circle display signal line 5 from a radio equipment 2 is a square wave generated by repeating H/L levels or not. When the square wave detector 18 detects a square wave, a detecting signal is sent out to a display driving circuit 19, and the display driving circuit 19 which has inputted this detecting signal turns on a dial lock indicator 14, and turns off an outer circle indicator 13. Accordingly, by lighting of this dial lock indicator 14, a user can recognize a dial lock state. In such a way, the misconception can be prevented.
Priority Applications (1)
Application Number | Priority Date | Filing Date | Title |
---|---|---|---|
JP62197045A JPH0687546B2 (en) | 1987-08-05 | 1987-08-05 | Dial lock display device for car telephone system |
Applications Claiming Priority (1)
Application Number | Priority Date | Filing Date | Title |
---|---|---|---|
JP62197045A JPH0687546B2 (en) | 1987-08-05 | 1987-08-05 | Dial lock display device for car telephone system |
Publications (2)
Publication Number | Publication Date |
---|---|
JPS6439836A true JPS6439836A (en) | 1989-02-10 |
JPH0687546B2 JPH0687546B2 (en) | 1994-11-02 |
Family
ID=16367798
Family Applications (1)
Application Number | Title | Priority Date | Filing Date |
---|---|---|---|
JP62197045A Expired - Fee Related JPH0687546B2 (en) | 1987-08-05 | 1987-08-05 | Dial lock display device for car telephone system |
Country Status (1)
Country | Link |
---|---|
JP (1) | JPH0687546B2 (en) |
-
1987
- 1987-08-05 JP JP62197045A patent/JPH0687546B2/en not_active Expired - Fee Related
Also Published As
Publication number | Publication date |
---|---|
JPH0687546B2 (en) | 1994-11-02 |
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Legal Events
Date | Code | Title | Description |
---|---|---|---|
LAPS | Cancellation because of no payment of annual fees |