Patent ID: 8570147
Filing Date: 2013-10-29
Classification: G07C,H03K

Abstract:
1. For use with a door handle pull-switch operable between a first position and a second position with a pulling motion, the first position corresponding with a door lock being orientated to lock a vehicle door, the second position corresponding with the door lock being orientated to unlock the vehicle door, a method comprising: monitoring a voltage level of a door handle detection circuit that is configured to generate electrical signals reflective of the door handle being actuated from the first position to the second position, the voltage level changing from a first level to a second level upon actuation of the door handle from the first position to the second position; after detecting the voltage level to be at least equal to the second level, performing a first debounce test to determine whether the second voltage is continuously detected for at least a first period of time; in the event the second level is continuously detected for at least the first period of time: in the event the second voltage is continuously detected for the second period of time, issuing a second message to indicate successful completion of the second debounce test; and increasing the first period of time in the event the second voltage is not continuously detected for the second period of time, wherein increasing comprises increasing the first period of time by at least one unit, the one unit being equal to a sampling rate of a detector used to monitor the voltage level.