TW264596B - Device for preventing telephone lock-control system from being destroyed - Google Patents

Device for preventing telephone lock-control system from being destroyed

Info

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
Application number
TW84100622A
Other languages
Chinese (zh)
Inventor
Ruey-Guang Wu
Maw-Song Chen
Meng-Tsang Wu
Jieh-Shyang Chen
Original Assignee
Winbond Electronics Corp
Priority date (The priority date 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 date listed.)
Filing date
Publication date
Application filed by Winbond Electronics Corp filed Critical Winbond Electronics Corp
Priority to TW84100622A priority Critical patent/TW264596B/en
Application granted granted Critical
Publication of TW264596B publication Critical patent/TW264596B/en

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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.
TW84100622A 1995-01-24 1995-01-24 Device for preventing telephone lock-control system from being destroyed TW264596B (en)

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)

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