Data processing: database and file management or data structures – Database design – Data structure types
Reexamination Certificate
2004-11-02
2009-08-11
Vital, Pierre M (Department: 2156)
Data processing: database and file management or data structures
Database design
Data structure types
C707S793000, C707S793000, C700S094000, C704S208000, C705S051000
Reexamination Certificate
active
07574451
ABSTRACT:
A “Media Identifier” operates on concurrent media streams to provide large numbers of clients with real-time server-side identification of media objects embedded in streaming media, such as radio, television, or Internet broadcasts. Such media objects may include songs, commercials, jingles, station identifiers, etc. Identification of the media objects is provided to clients by comparing client-generated traces computed from media stream samples to a large database of stored, pre-computed traces (i.e., “fingerprints”) of known identification. Further, given a finite number of media streams and a much larger number of clients, many of the traces sent to the server are likely to be almost identical. Therefore, a searchable dynamic trace cache is used to limit the database queries necessary to identify particular traces. This trace cache caches only one copy of recent traces along with the database search results, either positive or negative. Cache entries are then removed as they age.
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Burges Chris
Platt John
Lyon & Harr LLP
Microsoft Corporation
Obisesan Augustine
Vital Pierre M
Watson Mark A.
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