System and method for sound recognition
US4284846A · kind A · utility
62Cited by
2References
10Claims
0Family size
Inventor
Key dates
| Filing date | Aug 1, 1979 |
| Grant date | Aug 18, 1981 |
| Priority date | — |
| Expiry date | Aug 1, 1999 |
Classification
- Technology area (CPC G)Physics
- CPC primaryG10L2015/025
- WIPO fieldComputer technology
- WIPO sectorElectrical engineering
Abstract
Sounds produced by human or mechanical sources are recognized by comparison of certain waveform characteristic ratios with prestored ratios. Transitions and transition glides of characteristics are used to select certain stored groups of ratios for comparing.
Source: USPTO / EPO open patent data. Objective bibliographic and citation counts.