Abstract
A main stream contains successive content elements of video and/or audio information that encode video and/or audio information at a first data rate.
A computation circuit (144) computes main fingerprints from the successive content elements. A reference stream is received having a second data rate
lower than the first data rate. The reference stream defines a sequence of the reference fingerprints. A comparator unit (144) compares the main
fingerprints with the reference fingerprints. The main stream is monitored for the presence of inserted content elements between original content
elements, where the original content elements have main fingerprints that match successive reference fingerprints and the inserted content elements
have main fingerprints that do not match reference fingerprints. Rendering of inserted content elements to be skipped. In an embodiment when more
than one content element matches only one is rendered. In another embodiment matching is used to control zapping to or from the main stream.
In another embodiment matching is used to control linking of separately received mark-up information such as subtitles to points in the main stream.
A computation circuit (144) computes main fingerprints from the successive content elements. A reference stream is received having a second data rate
lower than the first data rate. The reference stream defines a sequence of the reference fingerprints. A comparator unit (144) compares the main
fingerprints with the reference fingerprints. The main stream is monitored for the presence of inserted content elements between original content
elements, where the original content elements have main fingerprints that match successive reference fingerprints and the inserted content elements
have main fingerprints that do not match reference fingerprints. Rendering of inserted content elements to be skipped. In an embodiment when more
than one content element matches only one is rendered. In another embodiment matching is used to control zapping to or from the main stream.
In another embodiment matching is used to control linking of separately received mark-up information such as subtitles to points in the main stream.
| Original language | English |
|---|---|
| Patent number | US11617018 |
| Priority date | 12/08/04 |
| Filing date | 11/05/22 |
| Publication status | Published - 28 Mar 2023 |