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:
Apr. 07, 2015
Filed:
Jul. 19, 2012
David Kimbal Dorwin, Kirkland, WA (US);
Aaron James Colwell, Seattle, WA (US);
Andrew Martin Scherkus, Seattle, WA (US);
Francis Galligan, San Jose, CA (US);
David Kimbal Dorwin, Kirkland, WA (US);
Aaron James Colwell, Seattle, WA (US);
Andrew Martin Scherkus, Seattle, WA (US);
Francis Galligan, San Jose, CA (US);
Google Inc., Mountain View, CA (US);
Abstract
Embodiments are directed towards enabling a portion of a protected content stream to be played in a degraded quality or experience at a client device when a key and/or license for some other portion of the content stream is unobtainable, or is not obtained by the client device. A content stream has a plurality of layers, with a baseline layer having a lowest quality level of the plurality of layers that is unencrypted, while at least one other layer is encrypted. When the key to decrypt the encrypted layer(s) is unobtained, at least the baseline unencrypted layer is allowed to still play at the client device.