Patent ID: 6865913
Filing Date: 2005-03-15
Classification: G07C,Y10T

Abstract:
1. A locking apparatus comprising: a lock driver configured to electrically lock and unlock a door; a biometric verifier configured to receive biometric information from a user, verify the received biometric information by comparing it with registered biometric information, and if the biometric verification authenticates the user, enable the lock driver to electrically operate; a key cylinder interlinked with the lock drive to permit manual operation of the lock drive via a key cooperating with the key cylinder; a detector configured to detect manipulation of the key cylinder; an alarm device configured to give an alarm in response to the detector detecting manipulation of the key cylinder; a power supply; the detector including a switch interconnecting the alarm and the power supply which sets off the alarm when the detector detects manipulation of the key cylinder; and a normally-closed disconnecting switch connecting the power supply to the alarm, configured to disconnect the power supply when the biometric verifier authenticates the user.