Patent ID: 9414031
Filing Date: 2016-08-09
CPC Classification: H04N

Claim Text:
1. A method for digitally recording a television program, the method comprising: receiving, at a first set-top box associated with a first customer via a satellite television system, an entitlement management message (EMM), wherein the EMM: retrieving, with the first set-top box, a first smart card identification number from a first smart card located in the first set-top box; decrypting, with the first set-top box, the customer identification number, using the first smart card identification number, to obtain the customer identification number; generating, with the first set-top box, a first encryption key based on the customer identification number; encrypting, with the first set-top box, a television program using the first encryption key; storing the television program in a storage medium; retrieving, with the second set-top box associated with the customer identification number, the television program stored in the storage medium; retrieving, with the second set-top box, a second smart card identification number from a second smart card located in the second set-top box; decrypting, using the second smart card identification number, the customer identification number to obtain the customer identification number; generating, with the second set-top box, a second encryption key based on the customer identification number, wherein the first encryption key and the second encryption key are the same; and decrypting, with the second set-top box, the television program using the second encryption key, wherein when the television program is decrypted, the decrypted television program is displayable on a display device.