Method and apparatus for processing digital service signals
US8990844B2 · kind B2 · utility
20Cited by
1References
20Claims
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Key dates
| Filing date | Jul 5, 2013 |
| Grant date | Mar 24, 2015 |
| Priority date | — |
| Expiry date | Jul 5, 2033 |
Classification
- Technology area (CPC H)Electricity
- CPC primaryH04N21/8586
- WIPO fieldAudio-visual technology
- WIPO sectorElectrical engineering
Abstract
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.
Source: USPTO / EPO open patent data. Objective bibliographic and citation counts.