System and method for sound recognition with feature selection synchronized to voice pitch
US4783807A · kind A · utility
259Cited by
19References
40Claims
0Family size
Inventor
Key dates
| Filing date | Aug 27, 1984 |
| Grant date | Nov 8, 1988 |
| Priority date | — |
| Expiry date | Aug 27, 2004 |
Classification
- Technology area (CPC G)Physics
- CPC primaryG10L25/90
- WIPO fieldComputer technology
- WIPO sectorElectrical engineering
Abstract
Speech signals are transformed into phoneme identification signals which represent the first two positive slope durations following the maximum peak amplitude of a pitch cycle.
Source: USPTO / EPO open patent data. Objective bibliographic and citation counts.