ACOUSTIC WAVE DEVICE WITH DIGITAL DATA TRANSMISSION FUNCTIONALITY

摘要

An improved electronics assembly for integration with a tire structure includes an acoustic wave device such as a SAW sensor (18a, 18b) connected as a feedback element in an active amplifier 28 and further coupled to an antenna element (26a, 26B), thus forming an active transmitter configuration. The combination of information corresponds to the physical parameters sensed by the acoustic wave device as well as digital data superimposed on the RF signal emitted by the acoustic wave device by selectively switching the amplifier on and off.