Method for using rights to contents
US9589113B2 · kind B2 · utility
Assignee
Inventors
Key dates
| Filing date | Jan 7, 2015 |
| Grant date | Mar 7, 2017 |
| Priority date | — |
| Expiry date | Jan 7, 2035 |
Classification
- Technology area (CPC H)Electricity
- CPC primaryH04N21/4181
- WIPO fieldAudio-visual technology
- WIPO sectorElectrical engineering
Abstract
A method of using rights corresponding to broadcast contents in a terminal having a memory card attached thereto. The method according to one embodiment includes checking, by the terminal, whether or not rights corresponding to broadcast contents include a constraint for verifying an existence of the memory card and an existence of the rights within the memory card; and if the rights include the constraint, performing, by the terminal, a procedure for verifying the existence of the memory card and the existence of the rights within the memory card through an SRM Ping protocol, the performing the procedure for verifying including transmitting, from the terminal to the memory card, a request message, receiving, by the terminal, a response message, and continuing/initiating or stopping/not initiating a consumption of the rights. The constraint includes at least one of a synchronized element, a sync Threshold element, and a check Interval element.
Source: USPTO / EPO open patent data. Objective bibliographic and citation counts.