Tone generation
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United States of America Patent
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Feb 20, 2018
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app pub date -
Jan 23, 2014
filing date -
Jan 23, 2014
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Abstract
A tone generation system includes a square wave signal generator configured to generate a first series of square wave signals to replicate a fundamental frequency of a desired mechanical tone, and a second series of square waves signals to replicate a second harmonic of the desired mechanical tone. An amplifier is configured to receive the first and second series of square waves, and a speaker is connected to receive an output signal from the amplifier.
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