Patent ID: 11898371
Assignee: ASSA ABLOY AMERICAS RESIDENTIAL INC.
Field: Control (Instruments)
Classification: CPC E  G  H | IPC E  G  H

Claim 12:
13. A method of operating an electronic lock, comprising:
receiving a keypad input event via a keypad, wherein upon receipt of a valid keypad input event, a bolt is moved between an extended position and a retracted position;
detecting a tampering event based at least in part on a characteristic of the keypad input event, wherein the characteristic includes at least one of an input location on the keypad, input duration on the keypad, and an input timestamp, the tampering event being determined to exist by comparing the input duration on the keypad to an acceptable input duration value, wherein the acceptable input duration value is based, at least in part, on a normal use profile created based on analysis of historic keypad input events that indicate patterns during a plurality of authorized actuations of the electronic lock; and
activating a tamper alarm to indicate the tampering event if the input duration on the keypad exceeds the acceptable input duration value.