Is a
Patent attributes
Current Assignee
Patent Jurisdiction
Patent Number
Date of Patent
November 24, 2009
Patent Application Number
09976091
Date Filed
October 15, 2001
Patent Citations Received
Patent Primary Examiner
Patent abstract
A wireless lock and key system using an encryption key pair. When a lock senses a person nearby, the random signal is generated. The key encrypts the signal and returns it to the lock. The lock decrypts the signal and compares it to the original to determine if the lock should be opened. The key may generate temporary tickets for guests to open the lock for limited times.
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