Method for compensating for a phase shift between the signal emitted by an object and that received from a reader equipped with an envelope detector and corresponding object
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United States of America Patent
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Jan 3, 2023
Grant Date -
Oct 14, 2021
app pub date -
Jun 24, 2021
filing date -
May 6, 2019
priority date (Note) -
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Abstract
An operation of calibrating the object using a reference reader is performed, the calibration operation including an operation of placing the reference reader at various distances away from the object that correspond to various values of a parameter within the object that is representative of the intensity of the signal received by the object, and, for each distance, an operation of determining an internal phase-shift compensation in the object with respect to a nominal internal phase shift, making it possible to obtain a load modulation amplitude that is higher, in terms of absolute value, than a threshold, and an operation of storing a lookup table of the various values of the parameter and the corresponding internal phase-shift compensations.
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