Patent ID: 9491437
Filing Date: 2016-11-08
CPC Classification: H04N

Claim Text:
1. A terminal device, comprising: a first receiver configured to receive nonreal-time data which comprise a first multi-media data which is encrypted, the first multi-media data constituting a content; a storage which stores the nonreal-time data; a second receiver configured to receive real-time data which comprise a second multi-media data constituting the content, wherein the nonreal-time data further comprises first interoperation information for playback in interoperation with the real-time data, the real-time data further comprises second interoperation information to playback in interoperation with the nonreal-time data, and the real-time data further comprises decryption information with respect to the first multi-media data or information about a source which provides the decryption information with respect to the first multi-media data, the decryption information comprising at least one of information about encryption algorithm applied to the first multimedia data and a key used for encryption, and the terminal device further comprising a processor configured to decrypt the first multi-media data being interoperative with the second multi-media data, using the decryption information when the real-time data is received, to combine the decrypted, first multi-media data with the second multi-media data, to output the content, and to restrict output of the nonreal-time data until a time of outputting the real-time data.