Cough detecting methods and devices for detecting coughs
US10448920B2 · kind B2 · utility
Assignee
Inventors
Key dates
| Filing date | Sep 14, 2012 |
| Grant date | Oct 22, 2019 |
| Priority date | — |
| Expiry date | Sep 14, 2034 |
Classification
- Technology area (CPC G)Physics
- CPC primaryG10L25/66
- WIPO fieldMedical technology
- WIPO sectorInstruments
Abstract
Examples of the present invention utilize principal component analysis (PCA) to detect cough sounds in an audio stream. Comparison of all or portions of the audio stream with a cough model may be conducted. The cough model may include a number of basis vectors may be based on initial portions of known coughs. The initial portions may be non-user specific, and accordingly the cough model may be used to detect coughs across individuals. Moreover, examples of the present invention may reconstruct the cough sounds from stored features such that the cough sounds are reconstructed but the reconstruction techniques used may be insufficient to reconstruct speech sounds that may also have been recorded, which may increase user privacy.
Source: USPTO / EPO open patent data. Objective bibliographic and citation counts.