Patent ID: 8738537
Filing Date: 2014-05-27
Classification: G06F,H04N

Abstract:
1. A method of changing a license for media content transmitted via a network and received by a user electronic device, the method comprising: receiving, using a processor, a request to change a license for a digital media data file encrypted using a content encryption key from a first license to a second license, the first and second licenses selected from the group consisting of licenses associated with streaming radio media content, licenses associated with subscription downloads, and licenses associated with purchased downloads, wherein the first license is distinct from the second license; retrieving, using the processor, the content encryption key of the digital media data file, the content encryption key being encrypted using a first encryption key stored on the user electronic device and associated with the first license; decrypting, using the processor, the content encryption key using the first encryption key; in response to decrypting the content encryption key, transmitting over a network a record of decryption to a remote computing device communicatively coupled to the user electronic device; and encrypting, using the processor, the content encryption key of the digital media data file using a second, different encryption key stored on the user electronic device and associated with the second license.