Tire pressure monitoring system
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United States of America Patent
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Oct 31, 2017
Grant Date -
Feb 26, 2015
app pub date -
Oct 31, 2014
filing date -
Oct 30, 2009
priority date (Note) -
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status (Latency Note)
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Abstract
A tire pressure monitoring system includes a tire valve stem mounted tire pressure gauge and an externally powerable remote display unit. The pressure gauge includes a pressure sensor, a wake circuit, a processor, and a first radio frequency (RF) module. The remote display unit includes a second RF module and a display. The wake circuit is adapted to activate the processor periodically at a predetermined interval of time and causes the processor to receive an output signal from the pressure sensor. The output of the pressure sensor is indicative of a tire pressure detected by the pressure sensor. The remote display unit is adapted to display the measured tire pressure value without any user input.
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