Pulse width measurement method and apparatus
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United States of America Patent
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Oct 3, 2017
Grant Date -
Dec 17, 2015
app pub date -
Jan 30, 2014
filing date -
Feb 5, 2013
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Abstract
A tire monitoring apparatus comprising a monitor installed on a tire and a pulse width measuring apparatus for measuring the width of pulses produced by the monitor. The pulse width measuring apparatus comprises a frequency analyzer for producing a frequency representation of the pulse, a signal processor for determining a minimum value of the frequency representation, and a pulse width estimator that inverts the minimum value to produce a measurement for the pulse width. The tire monitoring apparatus uses the pulse width measurement as an indication of characteristics of the tire.
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