Method for estimating the duration of the interruptions in the supply from the electric mains in an electric apparatus having an electronic control
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United States of America Patent
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Jul 15, 2003
Grant Date -
N/A
app pub date -
Feb 20, 2001
filing date -
Oct 8, 1998
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Abstract
A method for estimating the duration of the interruptions in the supply from the electric mains in an electric appliance having an electronic control, in particular a household appliance, includes the steps of (a) on the occasion of an interruption of the supply voltage of the apparatus, measuring and storing the value of at least one quantity that is characteristic of the operating status of the apparatus; (b) on the occasion of the restoration of the supply voltage, measuring the current value of the at least one characteristic quantity; (c) comparing the stored value and the current value of the at least one characteristic quantity; and (d) estimating, on the basis of the comparison, the duration of the interruption of the supply voltage.
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