TW264596B - Device for preventing telephone lock-control system from being destroyed - Google Patents
Device for preventing telephone lock-control system from being destroyedInfo
- Publication number
- TW264596B TW264596B TW84100622A TW84100622A TW264596B TW 264596 B TW264596 B TW 264596B TW 84100622 A TW84100622 A TW 84100622A TW 84100622 A TW84100622 A TW 84100622A TW 264596 B TW264596 B TW 264596B
- Authority
- TW
- Taiwan
- Prior art keywords
- destroyed
- control system
- telephone
- output device
- lock
- Prior art date
Links
Landscapes
- Telephone Function (AREA)
Abstract
A device for preventing telephone lock-control system from being destroyed, that prevents lock-control system of one telephone from being destroyed by hook switch dialing method with time delay, in which the telephone includes one keyboard, one output device with one signal output line, and one hook switch, comprises: one control device electrically connected to the keyboard and the output device, used for detecting ON/Off state of the hook switch, and sending one enable signal when the switch hook state turns from ON to OFF; one timer device electrically connected to the control device and the output device, and starting counting one first time interval when it receives the enable signal sent from the control device, and making signal output line of the output device be in disable state in the first time interval.
Priority Applications (1)
Application Number | Priority Date | Filing Date | Title |
---|---|---|---|
TW84100622A TW264596B (en) | 1995-01-24 | 1995-01-24 | Device for preventing telephone lock-control system from being destroyed |
Applications Claiming Priority (1)
Application Number | Priority Date | Filing Date | Title |
---|---|---|---|
TW84100622A TW264596B (en) | 1995-01-24 | 1995-01-24 | Device for preventing telephone lock-control system from being destroyed |
Publications (1)
Publication Number | Publication Date |
---|---|
TW264596B true TW264596B (en) | 1995-12-01 |
Family
ID=51402092
Family Applications (1)
Application Number | Title | Priority Date | Filing Date |
---|---|---|---|
TW84100622A TW264596B (en) | 1995-01-24 | 1995-01-24 | Device for preventing telephone lock-control system from being destroyed |
Country Status (1)
Country | Link |
---|---|
TW (1) | TW264596B (en) |
-
1995
- 1995-01-24 TW TW84100622A patent/TW264596B/en active
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