Is a
Patent attributes
Patent Jurisdiction
Patent Number
Date of Patent
May 1, 2007
Patent Application Number
10802189
Date Filed
March 17, 2004
Patent Citations Received
Patent Primary Examiner
Patent abstract
A transmitter of a tire condition monitoring apparatus has an acceleration sensor, a transmission circuit, an antenna and a transmission controller. The transmitter is provided in a tire of a vehicle. The acceleration sensor detects a running state of the vehicle. The transmission circuit generates a transmission signal containing data representing a condition of the tire and outputs the transmission signal. The antenna wirelessly transmits the transmission signal. The transmission controller changes a transmission power of the transmission circuit according to a detection result of the running state detection device. This is capable of transmitting signals with an appropriate transmission power.
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