Electronic access control system
Number of patents in Portfolio can not be more than 2000
United States of America Patent
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N/A
Issued Date -
Aug 19, 2004
app pub date -
Feb 18, 2003
filing date -
Feb 18, 2003
priority date (Note) -
Abandoned
status (Latency Note)
Importance
Abstract
A security system includes an electronic lock and an electronic key. The electronic key holds identification data that notifies the lock of the key's functional type and the locks that the key is authorized to open. In one embodiment, circuitry in the lock checks whether an inserted key holds an access code that is more recent than a corresponding access code stored in the lock, indicating that the data on the inserted key is more current than the data stored in the lock. The lock is then automatically reprogrammed with the data stored in the inserted key.
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