Multi-frequency tire pressure monitoring detector
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United States of America Patent
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May 10, 2016
Grant Date -
Oct 16, 2014
app pub date -
Apr 15, 2014
filing date -
Apr 15, 2013
priority date (Note) -
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status (Latency Note)
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Abstract
Methods, systems, and devices are provided for tire pressure detectors that may operate according to one of two or more selectable frequencies. Tire pressure detectors may include an RF section to modulate pressure information from a pressure sensor onto an output signal. The frequency of the output signal may be selectable from two or more frequencies based on a frequency required by a vehicle that the tire pressure detector is to be used with. An RF matching circuit may be coupled between the RF section and an antenna, with an impedance of the RF matching circuit selected based of the frequency of the output signal. Such impedance matching may provide a constant power level output from the tire pressure detector independent of the frequency of the tire pressure detector transmissions.
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