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:
Aug. 19, 2014
Filed:
Apr. 27, 2012
Thomas William Inskip, Vi, Kirkland, WA (US);
Duncan Maclean, Kirkland, WA (US);
Thomas William Inskip, VI, Kirkland, WA (US);
Duncan MacLean, Kirkland, WA (US);
Google Inc., Mountain View, CA (US);
Abstract
The invention provides secure playback on a client of a selected version of content with files downloaded from a corresponding package stored on a content server. The package includes a plurality of video and audio files for the available versions of the content. Each package of files includes a master manifest that lists the files included in the package. Also, each file listed in the master manifest includes a separate hash value. Separate packages include other video and audio files and other master manifests for available versions of other/different content. In at least one embodiment, one or more subset manifests are generated from the master manifest. Each subset manifest lists a portion of the files listed in the master manifest and the corresponding hash values for these files.