Signal processing apparatus having voice activity detection unit and related signal processing methods
US8972252B2 · kind B2 · utility
49Cited by
3References
18Claims
0Family size
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Key dates
| Filing date | Sep 13, 2012 |
| Grant date | Mar 3, 2015 |
| Priority date | — |
| Expiry date | Mar 21, 2033 |
Classification
- Technology area (CPC Y)Emerging Cross-Sectional Technologies
- CPC primaryY02D30/70
- WIPO fieldComputer technology
- WIPO sectorElectrical engineering
Abstract
A signal processing apparatus includes a speech recognition system and a voice activity detection unit. The voice activity detection unit is coupled to the speech recognition system, and arranged for detecting whether an audio signal is a voice signal and accordingly generating a voice activity detection result to the speech recognition system to control whether the speech recognition system should perform speech recognition upon the audio signal.
Source: USPTO / EPO open patent data. Objective bibliographic and citation counts.