US Patent 7,986,934
1. A method for improving safety in using a wireless communication device in a moving vehicle, the wireless communication device having an active voice mode wherein a person is speaking through the wireless communication device, and is capable of receiving a signal indicative of a nearby traffic light, comprising exercising the following steps by means of a computer program operating within the vehicle: (a) determining if the location of the vehicle is within a predetermined distance from the traffic light; (b) determining if the vehicle is moving; (c) determining if the wireless communication device is in an active voice mode; and (d) issuing an audible alarm in response to determining that (i) the vehicle is within the predetermined distance, (ii) the vehicle is moving, and (ii) the wireless communication device is in an active voice mode, whereby a user of the wireless communication device is warned of proximity to the traffic light.
2. The method of claim 1 including the step of determining if the traffic light is a red light or is calculated to be red by the time the vehicle reaches the intersection.