| 摘要 |
A method of broadcasting using a virtual channel table in a broadcasting protocol comprises, if a virtual channel is an inactive channel, omitting a corresponding service location descriptor from the virtual channel table to indicate that the virtual channel is inactive. The method includes transmitting the virtual channel table to a receiver and determining whether the virtual channel is inactive based on the presence of a service location descriptor in the virtual channel table by parsing the virtual channel table. The inactive channel is a channel that is not presently carrying a broadcast program but is scheduled to carry a broadcast program at a predetermined later time from a broadcasting station without local viewer interaction. The inactive channel is capable of being automatically skipped. |
