Apparatus, method and computer program product for determining respiratory condition
First Claim
1. An apparatus for determining a respiratory condition comprising:
- a breath sound measuring unit measuring a breath sound passing through a subject'"'"'s airway by a breathing;
a frequency converting unit converting a frequency on the breath sound to obtain a frequency spectrum;
a respiratory synchronous component extracting unit extracting a respiratory synchronous component, which varies depending on the breathing, from the frequency spectrum;
a frequency distribution detecting unit detecting a frequency distribution of the respiratory synchronous component; and
a respiratory condition determining unit determining a subject'"'"'s respiratory condition based on the frequency distribution.
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Accused Products
Abstract
An apparatus for determining a respiratory condition includes a breath sound measuring unit 111 measuring a breath sound passing through a subject'"'"'s airway by a breathing; a frequency converting unit 132 converting a frequency on the breath sound to obtain a frequency spectrum; a respiratory synchronous component extracting unit 134 extracting a respiratory synchronous component, which varies depending on the breathing, from the frequency spectrum; a frequency distribution detecting unit 136 detecting a frequency distribution of the respiratory synchronous component; and a respiratory condition determining unit 138 determining a subject'"'"'s respiratory condition based on the frequency distribution. According to the apparatus, various symptoms, such as airway occlusion, respiratory obstruction and the like in relation to breathing during sleep can be determined.
20 Citations
17 Claims
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1. An apparatus for determining a respiratory condition comprising:
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a breath sound measuring unit measuring a breath sound passing through a subject'"'"'s airway by a breathing;
a frequency converting unit converting a frequency on the breath sound to obtain a frequency spectrum;
a respiratory synchronous component extracting unit extracting a respiratory synchronous component, which varies depending on the breathing, from the frequency spectrum;
a frequency distribution detecting unit detecting a frequency distribution of the respiratory synchronous component; and
a respiratory condition determining unit determining a subject'"'"'s respiratory condition based on the frequency distribution. - View Dependent Claims (2, 3, 4, 5, 6, 7, 8, 9, 10, 11, 12, 13, 14, 15)
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16. A method of determining respiratory condition comprising:
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measuring a breath sound passing through a subject'"'"'s airway by a breathing;
converting a frequency on the breath sound to obtain a frequency spectrum;
extracting a respiratory synchronous component, which varies depending on the breathing, from the frequency spectrum;
detecting a frequency distribution of the respiratory synchronous component; and
determining a subject'"'"'s respiratory condition based on the frequency distribution.
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17. A computer program product having a computer readable medium including programmed instructions for determining respiratory condition, wherein the instructions, when executed by a computer, cause the computer to perform:
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measuring a breath sound passing through a subject'"'"'s airway by a breathing;
converting a frequency on the breath sound to obtain a frequency spectrum;
extracting a respiratory synchronous component, which varies depending on the breathing, from the frequency spectrum;
detecting a frequency distribution of the respiratory synchronous component; and
determining a subject'"'"'s respiratory condition based on the frequency distribution.
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Specification