Patent ID: 6941803

Claim:
A tire pressure monitoring apparatus comprising: a plurality of transmitter units provided, respectively, for tires of a vehicle, each of the transmitter units includes a pressure sensor to sense a tire pressure of the corresponding one of the tires to determine a sensed tire pressure, and a transmitting device to transmit a wireless signal to covey information on the sensed tire pressure and a tire identification code for identifying the corresponding one of the tires; a receiving section provided in the vehicle and arranged to receive the wireless signals from the transmitter units, the receiving section including a plurality of receiver units each provided near a unique one of the tires of the vehicle; and a controller to register the tire identification code of each tire, the controller being configured; to measure signal strengths of wireless signals when the wireless signals are received by the receiving section; and to register the tire identification code of each tire by comparing the signal strengths.