Device for assistance in the analysis of adventitious sounds
First Claim
1. A device for assistance in the analysis of respiratory sounds, of the type comprising a working memory (2), capable of storing samples of a signal representing a respiratory sound, and a computing module (4, 3) capable of cooperating with the working memory in order to carry out a time and frequency conversion of the signal (114), characterized in that it furthermore includes means (4, 3, 120) for identifying, in a converted signal, at least one component relating to an adventitious sound (Si;
- FCi;
Cci) and in that the computing module is designed to extract a set of parameters (Ai, ω
0;
H, L) characterizing this adventitious sound from the converted signal.
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Abstract
The invention concerns a device for assistance in the analysis of adventitious sounds, such as wheezing or crackling sounds. The invention is characterised in that said adventitious sounds are located on time/frequency spectral representations and parameterised according to a set of coefficients characterising them. Said sets of coefficients are stored in a storage unit for establishing a database or compared to synthesized sounds, based on parameters retrieved from such a database.
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Citations
16 Claims
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1. A device for assistance in the analysis of respiratory sounds, of the type comprising a working memory (2), capable of storing samples of a signal representing a respiratory sound, and a computing module (4, 3) capable of cooperating with the working memory in order to carry out a time and frequency conversion of the signal (114), characterized in that it furthermore includes means (4, 3, 120) for identifying, in a converted signal, at least one component relating to an adventitious sound (Si;
- FCi;
Cci) and in that the computing module is designed to extract a set of parameters (Ai, ω
0;
H, L) characterizing this adventitious sound from the converted signal. - View Dependent Claims (2, 3, 4, 5, 6, 7, 8, 9, 10, 11, 12, 13, 14, 15, 16)
- FCi;
Specification