Turbo processing for speech recognition with local-scale and broad-scale decoders
US8972254B2 · kind B2 · utility
Assignee
Inventors
Key dates
| Filing date | Jun 28, 2012 |
| Grant date | Mar 3, 2015 |
| Priority date | — |
| Expiry date | May 23, 2033 |
Classification
- Technology area (CPC G)Physics
- CPC primaryG10L15/30
- WIPO fieldComputer technology
- WIPO sectorElectrical engineering
Abstract
Environmental recognition systems may improve recognition accuracy by leveraging local and nonlocal features in a recognition target. A local decoder may be used to analyze local features, and a nonlocal decoder may be used to analyze nonlocal features. Local and nonlocal estimates may then be exchanged to improve the accuracy of the local and nonlocal decoders. Additional iterations of analysis and exchange may be performed until a predetermined threshold is reached. In some embodiments, the system may comprise extrinsic information extractors to prevent positive feedback loops from causing the system to adhere to erroneous previous decisions.
Source: USPTO / EPO open patent data. Objective bibliographic and citation counts.