Patent ID: 9548859
Date: 2017-01-17
CPC Classifications: G06F,H04L

Claim:
1. A method for accessing digital content by a mobile computing device that is available to stationary set top boxes, the mobile computing device communicating via a home network with a home key distribution center, comprising: retrieving a service ticket for the mobile computing device, the service ticket including authorization data that includes a first identification of at least one authorized subscription service for the mobile computing device, and a session key, that are not unique to the mobile computing device; retrieving, for the digital content, content rights that include a second identification of at least one subscription service that is required for access to play the stored digital content, wherein the content rights are delivered authenticated with the session key; validating, by the mobile computing device, that the at least one authorized subscription service identified in the authorization data is non-expired and matches the at least one required subscription service identified in the content rights; allowing access by the mobile computing device to play the digital content stored on the mobile computing device only if the validating is successful; sending a request for a home service ticket to the home key distribution center; receiving the home service ticket including home authorization data that consolidates the authorization data from other mobile computing devices that communicate with the home key distribution center and the session key; sending a key request message to the home key distribution center that includes the home service ticket and a second content identifier; and receiving, from the home key distribution center, second content rights corresponding to the second content identifier, wherein the home key distribution center receives the second content rights by sending a DRM request message to a DRM server for the right to play second digital content and the DRM server receives the DRM request message and sends a DRM reply message to the home key distribution center that supplies the second content rights, including a second content key; wherein the validating, by the mobile computing device, enforces an agreement between a subscriber and a content provider that allows the subscriber to lease the digital content from the content provider, and wherein to lease comprises a right to download, and to store in the mobile computing device, the digital content from a content server operated by the content provider.