Sign language screen Caption function Broadcast television system with optional restriction function

摘要

The present invention relates to a system and method for transmitting a broadcast signal to a broadcasting station, in particular, when a sign language guidance screen for a hearing impaired person is inserted, a specific recognition signal indicating the broadcasting signal is transmitted and transmitted, A television broadcast transmitting / receiving system comprising a broadcast transmitting apparatus for transmitting an over-the-air broadcast signal and a receiver for receiving a broadcast signal transmitted from the broadcast transmitting apparatus, the system comprising: Wherein the broadcast transmitter is configured to transmit a predetermined recognition signal in a specific zone of a broadcast signal when transmitting a sign language broadcast, and the receiver includes a mode selection unit for selecting a reception mode, A sign language identification signal detecting unit for detecting a sign recognition signal indicating that a sign language announcement broadcast screen is loaded from the received video signal, a caption ID detecting unit for detecting a caption ID from the received video signal, A caption ID detecting unit for detecting code data; and a caption detecting unit for detecting whether or not the caption function is selected based on the status flag of the mode state storing unit when it is confirmed that the two broadcast signals are simultaneously received by the sign language broadcast signal detecting unit and the caption ID detecting unit. And a control unit for limiting the control unit to the control unit.