Low complexity tone/voice discrimination method using a rising edge of a frequency power envelope

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United States of America Patent

PATENT NO 9148520
APP PUB NO 20150163363A1
SERIAL NO

14136203

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Abstract

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An apparatus comprising a decision circuit, a detector circuit and a processing circuit. The decision circuit may be configured to generate a confirmation signal in response to a first lock signal and a second lock signal. The detector circuit may be configured to generate the first lock signal in response to a filtered version of an input signal being above a threshold. The processing circuit may be configured to generate the second lock signal in response to a power signal received from the detector circuit. The processing circuit generates the second lock signal by analyzing the rising edge of a frequency power envelope of the power signal.

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Patent Owner(s)

  • INTEL CORPORATION

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Inventor(s)

Inventor Name Address # of filed Patents Total Citations
Barazesh, Bahman Flemington, US 19 191
Dzik, Dariusz Allentown, US 6 16

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