发明名称 |
ELECTRONIC LOCK BOX WITH SINGLE LINEAR ACTUATOR OPERATING TWO DIFFERENT LATCHING MECHANISMS |
摘要 |
<p>An electronic lock box contains a secure compartment for storing keys to a structure. A linear actuator moves in one direction opening the door to the secure compartment, and moves in the opposite direction releasing a shackle that holds the lock box to the structure. A lock box system uses an encryption algorithm to diversify user PIN data at a central computer, and stores that diversified information on a memory card for later use when the user attempts to access a lock box. The central computer and electronic lock box both keep track of system "epoch time," and the memory card must be presented to the electronic lock box within a correct epoch time window for the diversified PIN data to be successfully decrypted and compared to the user's PIN data that is entered on a keypad of the electronic lock box.</p> |
申请公布号 |
CA2500052(C) |
申请公布日期 |
2011.08.09 |
申请号 |
CA20052500052 |
申请日期 |
2005.03.08 |
申请人 |
SENTRILOCK, INC. |
发明人 |
FISHER, SCOTT R.;NOACK, WILLIAM GEORGE;SMITH, BRET WILLIAM;STEWART, RANDOLPH C. |
分类号 |
E05B49/00;B60L3/00;E05B19/00;E05B47/00;E05B67/00;G07C9/00;H01H47/00 |
主分类号 |
E05B49/00 |
代理机构 |
|
代理人 |
|
主权项 |
|
地址 |
|