BROADCAST TRANSMISSION DEVICE BROADCAST RECEPTION DEVICE METHOD FOR OPERATING BROADCAST TRANSMISSION DEVICE AND METHOD FOR OPERATING BROADCAST RECEPTION DEVICE

摘要

A broadcast receiving apparatus includes: a broadcast interface for receiving service and signaling information including a program; A companion screen interface to discover a companion screen device; And a control unit for extracting signaling information including description of the service and description of the service, and the control unit generates playback state information indicating a playback state of the program based on the signaling information , The companion screen interface may pass the playback status information to the companion screen device.