Searching and retrieving multimedia information
US6243676A · kind A · utility
Assignee
Inventor
Key dates
| Filing date | Dec 23, 1998 |
| Grant date | Jun 5, 2001 |
| Priority date | — |
| Expiry date | Dec 23, 2018 |
Classification
- Technology area (CPC G)Physics
- CPC primaryG10L2015/088
- WIPO fieldComputer technology
- WIPO sectorElectrical engineering
Abstract
A method retrieves a multi-media segment from a signal stream having an audio component and a closed caption component. This includes separating the audio component and the closed caption text component from the signal stream, generating an audio pattern representative of the start of the multi-media segment, locating the audio pattern in the audio component, and temporally aligning the text from the closed caption text component with the audio pattern in the audio component. Locating the audio pattern in the audio component includes retrieving text from the closed caption text component; and comparing the text against one or more keywords delimiting the multi-media segment. Once located, the multi-media segment may be played on-demand. In addition, an apparatus retrieves a multi-media segment from a signal stream, the signal stream having an audio component and a closed caption text component. The apparatus includes a decoder for separating the audio component and the closed caption text component from the signal stream, an audio synthesizer coupled to the decoder for generating an audio pattern representative of the start of the multi-media segment, a pattern recognizer coupled t…
Source: USPTO / EPO open patent data. Objective bibliographic and citation counts.