Diagnostic techniques based on speech models
US11538490B2 · kind B2 · utility
Assignee
Inventor
Key dates
| Filing date | Apr 26, 2021 |
| Grant date | Dec 27, 2022 |
| Priority date | — |
| Expiry date | Jun 29, 2041 |
Classification
- Technology area (CPC G)Physics
- CPC primaryG10L25/66
- WIPO fieldComputer technology
- WIPO sectorElectrical engineering
Abstract
At least one speech model, which includes one or more acoustic states exhibited in one or more reference speech samples and defines allowed transitions between the acoustic states, is obtained. At least one test speech sample produced by a subject is received. A plurality of test-sample feature vectors that quantify acoustic features of different respective portions of the test speech sample are computed. The test speech sample is mapped to a minimum-distance sequence of the acoustic states, by mapping the test-sample feature vectors to respective ones of the acoustic states such that a first total distance between the test-sample feature vectors and the respective ones of the acoustic states is minimized. A different, second total distance between the test-sample feature vectors and the respective ones of the acoustic states is computed. Responsively to the second total distance, an output indicating a physiological state of the subject is generated.
Source: USPTO / EPO open patent data. Objective bibliographic and citation counts.