Apparatus for controlling storage and playback of digital broadcasting contents
US7676039B2 · kind B2 · utility
Assignee
Inventors
Key dates
| Filing date | Nov 18, 2003 |
| Grant date | Mar 9, 2010 |
| Priority date | — |
| Expiry date | Nov 26, 2027 |
Classification
- Technology area (CPC H)Electricity
- CPC primaryH04N21/8358
- WIPO fieldAudio-visual technology
- WIPO sectorElectrical engineering
Abstract
Provided is an apparatus for controlling storage and playback of digital broadcasting contents. The apparatus can control a broadcasting content to be recorded and stored, temporarily stored, and played back while protecting and managing it securely. The apparatus of the present research includes: a control information providing unit for generating control information for recording storage, temporary storage, and playback of a broadcasting content, using the control information as watermarking information, multiplexing and scrambling the broadcasting content including the control information, and outputting a scrambled transport; and a storing and playback unit for storing the broadcasting content by using the control information, comparing the control information stored together with the broadcasting content with control information added as watermarks, and determining whether to play back the broadcasting content.
Source: USPTO / EPO open patent data. Objective bibliographic and citation counts.