20090109011 | HEAD-UP DISPLAY SYSTEM EMBEDDED IN VEHICLE - A head-up display system embedded in a vehicle having at least one tire is provided. The head-up display system includes a tire sensor, a speed detecting module, a host apparatus and a head-up display apparatus. The tire sensor is disposed within the tire for detecting a temperature and a pressure of the tire, and the speed detecting module detects a speed of the vehicle. The host apparatus drives the tire sensor with a wireless low-frequency signal and receives a high-frequency temperature signal and a high-frequency pressure signal transmitted from the tire sensor. Afterwards, according to the received signals, a processing unit of the host apparatus drives the head-up display apparatus to produce a temperature image, a pressure image and a speed image on a windshield by projecting. | 04-30-2009 |