Vibration signal generation apparatus and computer-readable, non-transitory storage medium storing vibration signal generation program
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United States of America Patent
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Oct 17, 2023
Grant Date -
Feb 4, 2021
app pub date -
Jul 1, 2020
filing date -
Jul 29, 2019
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Abstract
A vibration signal generation apparatus includes an absolute value signal generator configured to generate an absolute value signal by detecting an absolute value of amplitude of an acoustic signal, an envelope signal generator configured to generate an envelope signal by detecting an envelope of the absolute value signal, a differentiator configured to differentiate the envelope signal, an amplitude limiter configured to generate an amplitude-limited signal by limiting amplitude of the envelope signal so that an amplitude value of the differentiated envelope signal becomes zero or greater, and a vibration signal generator configured to generate a vibration signal by multiplying the amplitude-limited signal by a reference signal having a frequency that allows a human to perceive a vibration.
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