Patent ID: 9284755
Filing Date: 2016-03-15
CPC Classification: B60R,E05B,G07C

Claim Text:
1. A system for detecting locked status of a vehicle, said vehicle having an electrical power door lock system, said system for detecting comprising: a status transmitter configured to transmit a signal indicating said vehicle is in a locked status and having first input for coupling a lock voltage from said power door lock system, said lock voltage representative of a command to lock all vehicle doors; and a remote receiver responsive to said status transmitter and configured to indicate whether said vehicle is in the locked status based upon said signal; wherein said status transmitter further comprises a voltage detector coupled to said first input and configured to detect the polarity of said lock voltage; a second input to said status transmitter for coupling an unlock voltage from said power door lock system, said unlock voltage representative of a command to unlock all vehicle doors; and wherein said voltage detector is coupled to said second input and is configured to detect the polarity of said unlock voltage.