Magnetic sensor used for LF communication in TPMS application
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United States of America Patent
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Aug 21, 2018
Grant Date -
Mar 1, 2018
app pub date -
Aug 24, 2016
filing date -
Aug 24, 2016
priority date (Note) -
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status (Latency Note)
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Abstract
A tire pressure monitoring system (TPMS) sensor and a communication method are provided. The TPMS sensor includes a microcontroller unit, a pressure sensor electrically connected to the microcontroller unit and configured to measure an internal air pressure of a tire and a receiver electrically connected to the microcontroller unit and configured to receive at least one communication signal. The receiver includes a magnetic sensor configured to detect a modulated low-frequency electromagnetic carrier signal as a first communication signal and output an encoded measurement signal based on the detected modulated low-frequency electromagnetic carrier signal. The TPMS sensor further includes a demodulator configured to convert the encoded measurement signal into a data signal and output the data signal to the microcontroller unit.
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