System and method of automatic speech recognition using parallel processing for weighted finite state transducer-based speech decoding
US10255911B2 · kind B2 · utility
Assignee
Inventors
Key dates
| Filing date | Dec 17, 2014 |
| Grant date | Apr 9, 2019 |
| Priority date | — |
| Expiry date | Dec 17, 2034 |
Classification
- Technology area (CPC G)Physics
- CPC primaryG10L15/34
- WIPO fieldComputer technology
- WIPO sectorElectrical engineering
Abstract
A computer-implemented method of speech recognition comprises forming a weighted finite state transducer (WFST) having nodes associated with states and interconnected by arcs, and to identify at least one word or word sequence hypothesis, identifying multiple sub-graphs on the WFST, each sub-graph having the same arrangement of multiple states and at least one arc, and propagating tokens in parallel through the sub-graphs, where each sub-graph is stored as a supertoken each having an array of tokens.
Source: USPTO / EPO open patent data. Objective bibliographic and citation counts.