Transmitting system, receiving device, and a video transmission method

摘要

A stream transmitting system for transmitting a data stream, which has first layer including base data and second layer including data supplementing the base data, includes a transmitting device and a receiving device. The transmitting device includes: a transmission control unit for packetizing the data of the first layer and the data of the second layer to output a data packet of the first layer and a data packet of the second layer; first transmitting unit for transmitting the data packet of the first layer to the receiving device through first transmission path; and second transmitting unit for transmitting the data packet of the second layer to the receiving device through second transmission path. The receiving device includes: first receiving units for receiving the data packet transmitted through the first transmission paths; and a reception control unit for reconstructing a hierarchically-encoded data stream.

主权项

1. A transmitting system comprising:
a transmission control unit for packetizing data of a first layer and data of a second layer to output a data packet of the first layer and a data packet of the second layer, wherein the data of the first layer is a data of a base layer that is a data of a conventional digital broadcast, wherein the data of the second layer is a data of an extension layer corresponding to difference data to enhance the data of the base layer; a first transmitting unit for transmitting the data packet of the first layer to a receiving device through a first transmission path; and a second transmitting unit for transmitting the data packet of the second layer to the receiving device through a second transmission path that is different from the first transmission path in terms of transmission schemes; a first receiving unit for receiving the data packet transmitted through the first transmission path; a second receiving unit for receiving the data packet transmitted through the second transmission path; and a reception control unit for reconstructing a hierarchically-encoded data stream that is of higher quality than the base layer on the basis of a configuration information table comprising a data structure that correlates the data packets to the first or second layers, wherein the configuration information table is contained in the data packet received by the first receiving unit and the data packet received by the second receiving unit wherein the first transmitting unit transmits the data packet of the first layer, and a first configuration information table representing a data structure in the data packet of the first layer, to a receiving device through a first transmission path; the second transmitting unit transmits the data packet of the second layer, and a second configuration information table representing a data structure in the data packet of the second layer, to the receiving device through a second transmission path; the first receiving unit receives the data packet and the first configuration information table transmitted through the first transmission path; the second receiving unit receives the data packet and the second configuration information table transmitted through the second transmission path; and the reception control unit reconstructs the hierarchically-encoded data stream on the basis of the first configuration information table and the second configuration information table; wherein the first transmitting unit transmits the data packet of the first layer, and a first configuration information table representing a data structure in the data packet of the first layer, to a receiving device through a first transmission path; the second transmitting unit transmits the data packet of the second layer, and a second configuration information table representing a data structure in the data packets of the first layer and the second layer, to the receiving device through a second transmission path; the first receiving unit receives the data packet and the first configuration information table transmitted through the first transmission path; the second receiving unit receives the data packet and the second configuration information table transmitted through the second transmission path; and the reception control unit reconstructs the hierarchically-encoded data stream on the basis of the second configuration information table.