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.

Date of Patent:
Jul. 02, 2019

Filed:

Sep. 15, 2015
Applicant:

Google Inc., Mountain View, CA (US);

Inventors:

Hamid Ali, Edmonds, WA (US);

Li Bin, Mountain View, CA (US);

Assignee:

GOOGLE LLC, Mountain View, CA (US);

Attorney:
Primary Examiner:
Assistant Examiner:
Int. Cl.
CPC ...
H04L 29/06 (2006.01); G06F 21/60 (2013.01); G06F 21/10 (2013.01); H04L 9/14 (2006.01);
U.S. Cl.
CPC ...
G06F 21/602 (2013.01); G06F 21/10 (2013.01); G06F 21/105 (2013.01); H04L 9/14 (2013.01); G06F 2221/0755 (2013.01); H04L 2209/24 (2013.01);
Abstract

According to an aspect, a computing device may include a media content handler to obtain media content, a group license manager to determine whether or not the media content is part of a license group, and when the media content is determined as part of the license group, the group license manager may determine whether a master key for the license group was previously received. The group license manager may send, over a network, a license request to a license manager when the master key was not previously received. The group license manager may receive, over the network, a license to permit access to the media content, where the license includes the master key. The computing device may include a key generator to derive a content key based on the master key, and a decryption unit to decrypt the media content using the derived content key.


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