“At least” operator for combining audio search hits
US9275139B2 · kind B2 · utility
Assignee
Inventor
Key dates
| Filing date | Sep 27, 2012 |
| Grant date | Mar 1, 2016 |
| Priority date | — |
| Expiry date | Jul 27, 2034 |
Classification
- Technology area (CPC G)Physics
- CPC primaryG10L15/18
- WIPO fieldComputer technology
- WIPO sectorElectrical engineering
Abstract
System and method to search audio data, including: receiving audio data representing speech; receiving a search query related to the audio data; compiling, by use of a processor, the search query into a hierarchy of scored speech recognition sub-searches; searching, by use of a processor, the audio data for speech identified by one or more of the sub-searches to produce hits; and combining, by use of a processor, the hits by use of at least one combination function to provide a composite search score of the audio data. The combination function may include an at-least-M-of-N function that produces a high score when at least M of N function inputs exceed a predetermined threshold value. The composite search score employ a soft time window such as a spline function.
Source: USPTO / EPO open patent data. Objective bibliographic and citation counts.