Patent ID: 6737965
Filing Date: 2004-05-18
Classification: B60C

Abstract:
An apparatus for monitoring the condition of a tire of a vehicle, the apparatus comprising:a commander having a first selector and a first transmission circuit, wherein the first selector selects one of a plurality of different first channel codes, and wherein the first transmission circuit transmits a command signal that contains the selected one of the first channel codes; a transmitter provided at the tire, wherein the transmitter includes a tire condition sensor for detecting the condition of the tire, a first memory for storing unique identification data, a first reception circuit for receiving the command signal from the commander, and a second transmission circuit for transmitting signals, wherein, in response to the reception of the command signal by the first reception circuit, the second transmission circuit transmits a response signal, the response signal containing the first channel code contained in the command signal and the identification data in the first memory; and a receiver provided at the body of the vehicle, wherein the receiver includes a second selector, a second reception circuit, a second memory, and a controller, wherein the second selector selects one of a plurality of different second channel codes, wherein the second reception circuit receives signals from the transmitter, wherein the second memory stores the identification data of the transmitter, wherein each first channel code is related to one of the second channel codes, wherein, when the second reception circuit receives the response signal, the controller stores the identification data contained in the response signal in the second memory if the first channel code contained in the response signal is related to the selected one of the second channel codes.