US 11,893,090 B2
Synchronization of digital rights management data
Jeremy Phillip Pfeifer, Highlands Ranch, CO (US); and Garey L. Hassler, Castle Pines, CO (US)
Assigned to Comcast Cable Communications, LLC, Philadelphia, PA (US)
Filed by Comcast Cable Communications, LLC, Philadelphia, PA (US)
Filed on Dec. 30, 2020, as Appl. No. 17/138,188.
Prior Publication US 2022/0207114 A1, Jun. 30, 2022
Int. Cl. G06F 21/10 (2013.01); G06F 21/60 (2013.01)
CPC G06F 21/10 (2013.01) [G06F 21/602 (2013.01)] 20 Claims
OG exemplary drawing
 
1. A method comprising:
receiving, by a computing device, a request for content;
sending a second request for the content to an encoder;
receiving, based on the second request, the content and a content manifest;
determining that encryption key data for the content is not in a cache associated with the computing device; and
sending, based on the determination that the encryption key data is not in the cache, a request for the encryption key data to a cache associated with a second computing device.