Patent ID: 9317507
Filing Date: 2016-04-19
CPC Classification: G06F,H04N

Claim Text:
1. A method comprising: coupling a set top box having a storage device to a network for receiving content; communicating a conditional access packet to the set top box comprising an authorized portable device identifier; communicating a file having a plurality of segments and a replacement segment through the network, wherein a first segment of the plurality of segments comprises an expiration time; storing the authorized portable device identifier, file and replacement segment in the storage device of the set top box; coupling a portable device comprising a stored portable device identifier to the set top box separate from the portable device at a first time through a first data port at the set top box and a second data port at the portable device; communicating the stored portable device identifier to the set top box and comparing the stored portable device identifier and the authorized portable device identifier; communicating the file through the first data port and the second data port when the stored portable device identifier is the authorized portable device identifier; storing the file in the portable device; coupling the portable device to the storage device through the first data port and the second data port at a second time after the first time; and updating a first segment of the plurality of segments of the file with the replacement segment and not updating a second segment of the plurality of segments of the file; when a current time is beyond the expiration time, replacing the first segment at the portable device with the replacement segment.