Virtual channel mapping and channel turning method in digital broadcasting

摘要

A virtual channel mapping and channel tuning method in digital broadcasting is disclosed. Particularly, it relates to a technology that makes it possible for users to select a desirous digital broadcasting channel simply by using a hot-key on a remote controller, which is the same in every locality in a country, by using a virtual channel function. The virtual channel mapping method comprises the steps of: automatically searching for the channels or manually changing the channels to find a desirous channel; if the searched channel is a digital channel, analyzing the digital stream to check the existence of virtual channel information or a broadcasting station title corresponding to a certain hot-key; if virtual channel information exists, updating channel map information for the searched virtual channel and a remote controller hot-key to be mapped into each other and storing the information; and if a broadcasting station title exists, updating channel map information for the searched broadcasting station title and a remote controller hot-key to be mapped into each other and storing the information.