US 12,314,370 B2
Digital rights management data conversion in a content delivery network
Kyong Park, Haverford, PA (US); John Robinson, South Riding, VA (US); and Nikola Kolev, Philadelphia, PA (US)
Assigned to Comcast Cable Communications, LLC, Philadelphia, PA (US)
Filed by Comcast Cable Communications, LLC, Philadelphia, PA (US)
Filed on Aug. 20, 2018, as Appl. No. 16/105,279.
Prior Publication US 2020/0057840 A1, Feb. 20, 2020
Int. Cl. G06F 21/10 (2013.01); G06F 21/44 (2013.01); H04L 9/08 (2006.01)
CPC G06F 21/44 (2013.01) [H04L 9/0819 (2013.01); G06F 21/1063 (2023.08); G06F 2221/2129 (2013.01); H04L 2209/603 (2013.01)] 39 Claims
OG exemplary drawing
 
1. A method comprising:
generating, based on first digital rights management (DRM) data in a first DRM protocol and associated with a content item, second DRM data in a second DRM protocol;
sending, to a plurality of devices, the content item and a manifest file associated with the content item and comprising the second DRM data;
receiving, after sending the content item and from a device of the plurality of devices, an entitlement request to access the content item;
sending, to the device and based on the entitlement request, information indicating that the device is entitled to access the content item;
receiving, from the device, a second request for information for playback of the content item, wherein the second request comprises the information indicating that the device is entitled to access the content item; and
sending, to the device and based on the second request, a decryption key for the content item.