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US 2013/0096464 A1Published application
Sound processing apparatus and breathing detection method
AssigneeFujitsu Limited
InventorsMasakiyo TANAKA, Masanao Suzuki
Life of this patent
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Abstract
A sound processing apparatus comprising a processor configured to convert an input audio signal into a frequency domain signal; calculate similarity of the current frequency domain signal and a previous frequency domain signal; and determine a breathing state of a biological entity indicated by the audio signal, based on the similarity.
Claims10
A sound processing apparatus comprising a processor configured to:
- convert an input audio signal into a frequency domain signal;
- calculate similarity of the current frequency domain signal and a previous frequency domain signal;
- and
- determine a breathing state of a biological entity indicated by the audio signal, based on the similarity.
1 more element
A breathing detection method executed by a processor, the sound processing method comprising:
- converting an input audio signal into a frequency domain signal;
- calculating similarity of the current frequency domain signal and a previous frequency domain signal;
- and
- determining a breathing state of a biological entity indicated by the audio signal, based on the similarity.
1 more element
Dependencies are inferred from the claim text.