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US-9191698-B2 · Nov 17, 2015 · US
US8990844B2 · US · B2
| Field | Value |
|---|---|
| Publication number | US-8990844-B2 |
| Application number | US-201313936044-A |
| Country | US |
| Kind code | B2 |
| Filing date | Jul 5, 2013 |
| Priority date | Jul 5, 2012 |
| Publication date | Mar 24, 2015 |
| Grant date | Mar 24, 2015 |
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An apparatus for processing digital service signals includes a receiving module configured to receive contents having watermarks, where the watermarks are inserted in audio or video frames of the contents, the watermarks carry channel information related to the contents, and content information having URL information for additional data of the contents. An extracting module is configured to extract the watermarks from the audio or video frames, and an obtaining module is configured to obtain the additional data over an IP(Internet Protocol) network using the extracted watermarks.
Opening claim text (preview).
What is claimed is: 1. A method of providing an interactive service related to a content, the method comprising: receiving the content having watermarks, wherein the watermarks are inserted in audio or video frames of the contents, wherein the watermarks carry channel information related to the contents, and content information having URL information for additional data for the interactive service of the content, wherein a watermark in one of the frames includes a first-level wate…
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