Patent ID: 6954688
Filing Date: 2005-10-11
Classification: B60C

Abstract:
1. A tire status monitoring apparatus for monitoring statuses of a plurality of tires provided on a vehicle, the tire status monitoring apparatus comprising: transponders provided on the respective tires which detect statuses of the tires in response to a request signal and generate transponder data including data indicative of the statuses of the tires detected; and a transceiver which transmits the request signal to each transponder, receives the transponder data from each transponder, and determines the number of times the request signal is transmitted per unit time in accordance with a speed range of the vehicle; wherein the transceiver has a plurality of speed ranges including a first speed range and a second speed range in which a speed of the vehicle is faster than that in the first speed range, wherein the number of times the request signal is transmitted per unit time is constant within each speed range, and wherein the transceiver increases the number of times the request signal is broadcast per unit time when the speed of the vehicle increases from the first speed range to the second speed range.