Induction heating cooker, induction heating cooking method, induction heating cooking program, resonance sound detection device, resonance sound detection method, and resonance sound detection program
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United States of America Patent
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Jul 29, 2014
Grant Date -
Jul 9, 2009
app pub date -
May 1, 2007
filing date -
May 11, 2006
priority date (Note) -
In Force
status (Latency Note)
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Abstract
An object of the invention is to accurately detect a state of an object to be heated in a cooking vessel and effectively avoid cooking failure. An induction heating section (13) inductively heats a cooking vessel (11). A vibration detecting section (14) detects a vibration of the cooking vessel (11) via a top plate (12). A vibration waveform extracting section (15) extracts a vibration waveform of a frequency component having a frequency equal to a predetermined multiplication product of an induction heating frequency, from a waveform of the vibration detected by the vibration detecting section (14). A determining section (16) determines a state of an object to be heated, based on the vibration waveform extracted by the vibration waveform extracting section (15).
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