Patent ID: 7489233
Filing Date: 2009-02-10
Classification: B60R

Abstract:
1. A pre-warn vehicle security device for a vehicle comprising a data communications bus extending throughout the vehicle, the data communications bus carrying data and address information thereover, an alert indicator, and an alarm controller interfacing with the data communications bus extending throughout the vehicle and carrying data and address information and when in an armed mode causing the alert indicator to generate an alarm indication responsive to a sensed high security threat level condition, the pre-warn vehicle security device comprising: a pre-warn vehicle security sensor for sensing a security threat level condition lower than the sensed high security threat level condition; and a pre-warn emulator for generating at least one signal on the vehicle data communications bus extending throughout the vehicle and carrying data and address information responsive to said pre-warn vehicle security sensor so that the alarm controller causes the alert indicator to generate an emulated pre-warn indication different from the alarm indication; said pre-warn emulator, responsive to said pre-warn vehicle security sensor sensing the low security threat level condition, sequentially generating, on the data communications bus extending throughout the vehicle and carrying data and address information, a high security threat level signal corresponding to the sensed high security threat level condition and a duration shortening signal for the alert indicator for generating a shortened alarm indication.