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:
Mar. 20, 2018
Filed:
Jul. 23, 2014
Applicant:
Ericsson Ab, Stockholm, SE;
Inventors:
Mikhail Mikhailov, Newton, MA (US);
Raj Nair, Lexington, MA (US);
Assignee:
ERICSSON AB, Stockholm, SE;
Attorney:
Primary Examiner:
Int. Cl.
CPC ...
H04L 21/00 (2006.01); G06F 21/12 (2013.01); G06F 21/10 (2013.01); G06F 21/57 (2013.01); H04L 9/32 (2006.01); G06F 21/44 (2013.01);
U.S. Cl.
CPC ...
G06F 21/12 (2013.01); G06F 21/10 (2013.01); G06F 21/445 (2013.01); G06F 21/575 (2013.01); H04L 9/3247 (2013.01); G06F 2221/034 (2013.01); G06F 2221/0735 (2013.01);
Abstract
A client device for media playback includes a user-installable media client application which implements the client-side of a digital rights management (DRM) system. The client device employs secure boot and verifies the user-installed application. The application is hardened against reverse engineering, and it utilizes a special API provided by the client device to tie into the secure boot, bridging the gap between the secure boot and the client-side of the DRM system contained within the application.