Keyword detection without decoding
US9378733B1 · kind B1 · utility
32Cited by
2References
21Claims
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Key dates
| Filing date | Apr 11, 2013 |
| Grant date | Jun 28, 2016 |
| Priority date | — |
| Expiry date | Oct 21, 2034 |
Classification
- Technology area (CPC G)Physics
- CPC primaryG10L2015/088
- WIPO fieldComputer technology
- WIPO sectorElectrical engineering
Abstract
Embodiments pertain to automatic speech recognition in mobile devices to establish the presence of a keyword. An audio waveform is received at a mobile device. Front-end feature extraction is performed on the audio waveform, followed by acoustic modeling, high level feature extraction, and output classification to detect the keyword. Acoustic modeling may use a neural network or a vector quantization dictionary and high level feature extraction may use pooling.
Source: USPTO / EPO open patent data. Objective bibliographic and citation counts.