发明名称 |
ELECTRONIC SECURITY SYSTEM WITH NOVEL ELECTRONIC T-HANDLE LOCK |
摘要 |
An electronic security system includes an electronic lock mechanism (104) and an electronic key (101), each of which is provided with a microprocessor controller and a memory storing data including an ID code and encryption key codes. The lock microprocessor may either change ID codes stored in it's memory or encrypt a seed number to be used for determining access to the lock. The key can only be used to access the lock either once or for a limited number of successible times, and must thereafter be reprogrammed by a host computer (301) to be loaded with either the proper ID code or the appropriate encryption key code for that lock. The electronic lock operates a solenoid (1624) which retracts a bolt-blocking mechanism that prevents the unlocking of the bolt even when a key having the correct mechanical key cuts is inserted into the lock. Power for operating the electronic lock as well as the solenoid is provided by a power supply within the key. In a preferred embodiment the key unit is composed of a handheld computer witha separate internal circuit board which stores key code information and performs encryption functions. A novel electronic T-lock (1340) assembly is also provided for use with vending machines and the like.
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申请公布号 |
CA2157480(C) |
申请公布日期 |
1999.05.25 |
申请号 |
CA19942157480 |
申请日期 |
1994.03.03 |
申请人 |
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发明人 |
HYATT, RICHARD G., JR.;HALL, CHARLES E.;TRENT, DOUGLAS E. |
分类号 |
E05B5/00;G07C9/00;(IPC1-7):E05B55/08;H04M17/02 |
主分类号 |
E05B5/00 |
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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