Method for transmitting broadcast signals and method for receiving broadcast signals
US10827232B2 · kind B2 · utility
Assignee
Inventors
Key dates
| Filing date | Jun 26, 2019 |
| Grant date | Nov 3, 2020 |
| Priority date | — |
| Expiry date | Jun 26, 2039 |
Classification
- Technology area (CPC H)Electricity
- CPC primaryH04N21/8547
- WIPO fieldAudio-visual technology
- WIPO sectorElectrical engineering
Abstract
A method of processing supplementary content in a digital receiver is discussed. The method includes connecting to an external input source being different from a broadcaster; receiving uncompressed A/V content from the external input source being different from the broadcaster; extracting audio watermark from the uncompressed A/V content; wherein the audio watermark includes domain type information, time information and event flag; constructing a first URL based on the domain type information, the time information and the event flag included in the audio watermark; transmitting an HTTP request to a remote server based on the first URL; receiving a second URL for the supplementary content from the remote server; and presenting the supplementary content based on the second URL.
Source: USPTO / EPO open patent data. Objective bibliographic and citation counts.