A TRANSMISSION SYSTEM FOR UHDTV BROADCAST AND UHDTV MULTIPLEXER

摘要

PURPOSE: A UHDTV transmitting system and a UHDTV MUX are provided to transmit residual main UHDTV broadcasting data by using an additional ground wave channel and to transmit a part of UHDTV broadcasting data instead of a part of null data transmitted from an HD ground wave channel. CONSTITUTION: A UHDTV input unit (200) receives UHDTV data. A UHDTV MUX(210) adds a part of UHDTV data instead of a part of HD broadcasting signal null data to generate a first ground wave broadcasting signal. The UHDTV MUX adds the null data to residual UHDTV data to generate a second ground wave broadcasting signal. A first ground wave transmitting unit (150) transmits the ground wave broadcasting signal. A second ground wave transmitting unit (250) transmits the second ground wave broadcasting signal.