Method for extracting features from a mixture of signals
US6321200A · kind A · utility
55Cited by
9References
20Claims
0Family size
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Key dates
| Filing date | Jul 2, 1999 |
| Grant date | Nov 20, 2001 |
| Priority date | — |
| Expiry date | Jul 2, 2019 |
Classification
- Technology area (CPC G)Physics
- CPC primaryG10L15/142
- WIPO fieldComputer technology
- WIPO sectorElectrical engineering
Abstract
A method extracts features from a mixture of signals. The method filters the mixture of signals by a filterbank to produce a plurality of band-pass signals. Each band-pass signal is windowed to produce a plurality of multi-dimensional observation matrices. The multi-dimensional observation matrices are reduced in their dimensionality. Features are extracted from the reduced dimensionality matrices using independent component analysis. The features can include temporal and spectral characteristics.
Source: USPTO / EPO open patent data. Objective bibliographic and citation counts.