Patent ID: 8885823
Filing Date: 2014-11-11
Classification: H04N

Abstract:
1. A method for delivering encrypted video on-demand content to a subscriber terminal in a cable television (CATV) network, the method comprising: in response to a request received at a headend or distribution hub in the CATV network where video-on-demand content is loaded on to a video on-demand server as unencrypted content, the request for video on-demand content generated by a subscriber terminal, providing a communication path for transmitting unencrypted content from the video on-demand server to a load balancer and at least one encryptor transparently overlaid to an existing video on-demand management system having a video on-demand resource manager and its own encryptor, the communication path bypassing an existing communication path between the video on-demand resource manager and corresponding encryptor for reducing a degree of protocol-dependent communication for encryption by the existing video on-demand management system; receiving unencrypted transport packets of the unencrypted content stored in the on-demand server and routed over the communication path that bypasses the existing communication path between the video on-demand resource manager and encryptor; receiving a destination address associated with the requesting subscriber terminal routed by the on-demand server bypassing a communication of the destination address to the existing encryptor in the video on-demand management system, wherein the overlaid load balancer instead of the video on-demand management system manages encryption of the unencrypted content loaded in to the video-on-demand server by: