Speaking period detection device, voice recognition processing device, transmission system, signal level control device and speaking period detection method
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United States of America Patent
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Dec 1, 2009
Grant Date -
May 12, 2005
app pub date -
Sep 14, 2004
filing date -
Sep 19, 2003
priority date (Note) -
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Abstract
A speaking period required for a voice recognition processing is detected with a simple and robust approach. A speaking period is detected based on an EMG generated when a speaker speaks. A large amplitude is observed in an EMG as muscular activity is caused when a speaker speaks. By observing this, a speaking period can be detected. The EMG can be measured from the speaker's skin via electrodes provided on a mobile-type terminal. Since a mobile-type terminal is usually pressed to the skin for use, affinity between this use form and the present invention is very high.
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