发明名称 |
ACCESS CODE PROCESSING FOR A SECURITY SYSTEM |
摘要 |
The present invention is directed to a security system comprising a control panel for controlling the operation of the security system and a keypad for communication with the control panel by entry of access codes by key-presses of keys on the keypad of the keypad controller. The control panel includes a means for examining a sequence of key-presses for a match between a first defined number of consecutive key-presses and access codes programmed in the control panel. The control panel examines the sequence of key-presses after a second defined number of key-presses and if no match is found, continues to examine the most recent first defined number of key-presses after each further individual key-press until a match is found.
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申请公布号 |
CA2205311(A1) |
申请公布日期 |
1998.11.14 |
申请号 |
CA19972205311 |
申请日期 |
1997.05.14 |
申请人 |
DIGITAL SECURITY CONTROLS LTD. |
发明人 |
BOWERING, ALAN J.;CLARK, DAVID P. |
分类号 |
G07C9/00;(IPC1-7):H04L9/32 |
主分类号 |
G07C9/00 |
代理机构 |
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代理人 |
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主权项 |
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地址 |
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