System and method for matching a query against a broadcast stream
US9047371B2 · kind B2 · utility
Assignee
Inventors
Key dates
| Filing date | Feb 21, 2012 |
| Grant date | Jun 2, 2015 |
| Priority date | — |
| Expiry date | Mar 11, 2033 |
Classification
- Technology area (CPC H)Electricity
- CPC primaryH04H60/44
- WIPO fieldTelecommunications
- WIPO sectorElectrical engineering
Abstract
A method for identifying with a broadcast stream. That method includes receiving one or more broadcast streams, from which it generates and stores an audio fingerprint of a selected portion of each received broadcast stream. A query is received, and the method generates an audio fingerprint of the query. From that point, the method continues by identifying audio content from the query, using the query audio fingerprint and a database of indexed audio content. The method concludes by identifying the source of the query using the query audio fingerprint and the stored audio fingerprints. Embodiments of the method further include predictively caching audio fingerprint sequences and corresponding audio item identifiers from a server after storing audio fingerprints extracted from the broadcast stream; and using the predictively cached audio fingerprint sequences to identify an audio item within the audio signal based on at least some additional audio fingerprints of the audio signal.
Source: USPTO / EPO open patent data. Objective bibliographic and citation counts.