The patent badge is an abbreviated version of the USPTO patent document. The patent badge does contain a link to the full patent document.
The patent badge is an abbreviated version of the USPTO patent document. The patent badge covers the following: Patent number, Date patent was issued, Date patent was filed, Title of the patent, Applicant, Inventor, Assignee, Attorney firm, Primary examiner, Assistant examiner, CPCs, and Abstract. The patent badge does contain a link to the full patent document (in Adobe Acrobat format, aka pdf). To download or print any patent click here.
Patent No.:
Date of Patent:
Feb. 10, 2015
Filed:
Sep. 13, 2010
Applicants:
Younsung Chu, Gyeonggi-Do, KR;
Seungjae Lee, Seoul, KR;
Inventors:
Younsung Chu, Gyeonggi-Do, KR;
Seungjae Lee, Seoul, KR;
Assignee:
LG Electronics Inc., Seoul, KR;
Attorney:
Primary Examiner:
Assistant Examiner:
Int. Cl.
CPC ...
H04L 9/32 (2006.01); H04N 21/418 (2011.01); H04N 21/4627 (2011.01);
U.S. Cl.
CPC ...
H04N 21/4181 (2013.01); H04N 21/4627 (2013.01);
Abstract
Disclosed herein is a method of checking whether or not a memory card including rights to contents is mounted in a terminal during a process of using the contents. The checking operation may be performed in synchronization with a timing at which a BCAST client within the terminal requests a traffic encryption key (TEK) to a DRM agent. In addition, there is disclosed herein a method of checking whether or not the memory card is mounted therein, as well as whether or not rights to the contents actually exist in the memory card.