Patent ID: 8225365
Filing Date: 2012-07-17
Classification: H04N

Abstract:
1. A sending apparatus comprising: a first receiving portion that receives program information which includes media data; a separation portion that separates the data included in a blanking portion of the program information from the program information; a detection portion that detects whether the data included in the blanking portion of the program information includes control information; a second receiving portion that receives, from a separate receiving apparatus, an encoding command instructing the sending apparatus to encode and compress the media data and control information according to one of a first video encoding standard format and a second different video encoding standard format to form elementary streams, to encrypt the elementary streams according to one of a first encryption standard and a second different encryption standard, to packetize the encrypted elementary streams according to one of a first packet format and a second different packet format, and to transmit the packetized elementary streams at one of a first transmission speed and a second different transmission speed, the receiving apparatus generating the encoding command based on a determination of whether the receiving apparatus is communicating with the sending apparatus via one of a first network and a second separate network; a signal-processing portion that compresses and encodes the media data to form the elementary streams, encrypts the elementary streams, and packetizes the encrypted elementary streams, based on the encoding command from the receiving apparatus, and then encodes and packetizes the control information separated from the program information, based on the encoding command from the receiving apparatus; and a network interface that transmits, via the one of the first network and the second separate network, the packetized control information and the packetized media data following different packet data formats to the receiving apparatus at one of the first transmission speed and the second transmission speed based on the received encoding command.