Method and apparatus for distributed voice searching
US7818170B2 · kind B2 · utility
Assignee
Inventor
Key dates
| Filing date | Apr 10, 2007 |
| Grant date | Oct 19, 2010 |
| Priority date | — |
| Expiry date | May 21, 2029 |
Classification
- Technology area (CPC H)Electricity
- CPC primaryH04M2250/74
- WIPO fieldComputer technology
- WIPO sectorElectrical engineering
Abstract
A method for distributed voice searching may include receiving a search query from a user of the mobile communication device, generating a lattice of coarse linguistic representations from speech parts in the search query, extracting query features from the generated lattice of coarse linguistic representations, generating coarse search feature vectors based on the extracted query features, performing a coarse search using the generated coarse search feature vectors and transmitting the generated coarse search feature vectors to a remote voice search processing unit, receiving remote resultant web indices from the remote voice search processing unit, generating a lattice of fine linguistic representations from speech parts in the search query, generating fine search feature vectors from the lattice of fine linguistic representations, performing a fine search using the coarse search results, the remote resultant web indices and the generated fine search feature vectors, and displaying the fine search results to the user.
Source: USPTO / EPO open patent data. Objective bibliographic and citation counts.