Enhanced directory assistance automation
US6999563B1 · kind B1 · utility
Assignee
Inventors
Key dates
| Filing date | Aug 21, 2000 |
| Grant date | Feb 14, 2006 |
| Priority date | — |
| Expiry date | Dec 21, 2022 |
Classification
- Technology area (CPC H)Electricity
- CPC primaryH04M2201/40
- WIPO fieldTelecommunications
- WIPO sectorElectrical engineering
Abstract
The present invention enhances directory assistance automation by searching traditional directory assistance databases with independent listing and locality queries. Initially, a caller's speech responses from a directory assistance inquiry are individually converted to independent listing and locality search queries. The listing and locality queries are determined by processing the caller's speech responses using a defined speech recognition grammar. The listing and locality queries are used to search a directory assistance database. Once the listing results are returned from the directory assistance database, the records in the listing results are analyzed to select a number for the caller's directory assistance request.
Source: USPTO / EPO open patent data. Objective bibliographic and citation counts.