System for transmitting broadcast data
AssigneeDigicap Co., Ltd.
InventorsSungheun Oh, Kitaek Lee, Myungho Lee, Joon Young Park
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Abstract
A broadcast transmission system according to an aspect of the present invention includes a broadcast network controller and a broadcast network switch, thereby transmitting an Internet protocol (IP) stream for a service that cannot be transmitted through one physical layer pipe (PLP) by distributing the IP stream into a combination of one or more PLPs. In this case, the combined PLPs may be in one or more broadcast network frequency bands. The broadcast network controller determines the combination of PLPs, and the broadcast network switch distributes the IP stream into one or more PLPs according to a control command of the broadcast network controller.
Claims10
A broadcast transmission system that comprises a broadcast source system configured to packetize one or more real-time broadcast services and non-real-time data services to output an Internet protocol (IP) stream, a scheduler configured to transmit an input IP stream through one or more physical layer pipes (PLPs), and a broadcast transmitter configured to transmit a broadcast signal corresponding to one broadcast radio frequency bandwidth, the broadcast source system further comprising:
- a broadcast network switch configured to deliver IP streams input from broadcast source systems of a plurality of broadcast transmission systems to a designated scheduler;
- and
- a broadcast network controller configured to collect PLP information managed by schedulers of the plurality of broadcast transmission systems, determine an IP stream transmission method, and deliver a control command for the determined transmission method to the scheduler and the broadcast network switch,
- wherein the broadcast network controller determines one or more PLPs to be used to transmit an IP stream of an added service according to bandwidth information of PLPs of the same broadcast network frequency band and transmits the determination result to the broadcast network switch.
Dependencies are inferred from the claim text.