Display control method

Abstract

To provide a technique for more preferably transmitting or receiving an advanced digital broadcasting service.SOLUTION: In a display control method in a broadcast receiving device that can receive a broadcast wave that are simulcast between a 4K broadcast service and a 2K broadcast service via a broadcast transmission line, the 4K broadcast service included in the broadcast wave is received, demodulated, a broadcast program of the 4K broadcast service is displayed, the 2K broadcast service which is a simulcast of the 4K broadcast service is received and demodulated when emergency broadcast information is received while a broadcast program of the 4K broadcast service is being displayed, the display screen of the broadcast receiving device is forcibly switched from the display of the broadcast program of the 4K broadcast service to the display of the screen of an emergency broadcast transmitted by the 2K broadcast service.SELECTED DRAWING: Figure 1

Claims

[Claim 1] A display control method for a broadcast receiving device capable of receiving broadcast waves that are simultaneously broadcasting a first broadcast service and a second broadcast service via a broadcast transmission line, The process includes the steps of receiving the first broadcast service included in the broadcast wave via the broadcast transmission line, demodulating it, and performing a display process to display the broadcast program of the first broadcast service, or receiving the second broadcast service included in the broadcast wave via the broadcast transmission line, demodulating it, and performing a display process to display the broadcast program of the second broadcast service. In the above step, When emergency broadcast information is received while a broadcast program of the first broadcasting service is being displayed, the broadcast receiving device receives and demodulates the second broadcasting service, which is a simulcast of the first broadcasting service, when the first and second broadcasting services of the simulcast are each transmitting emergency broadcasts via the broadcast transmission path, and forcibly switches the display screen of the broadcast receiving device from the display of the broadcast program of the first broadcasting service to the display of the emergency broadcast transmitted by the second broadcasting service. The compression method used in the first broadcasting service is a more efficient compression method than the compression method used in the second broadcasting service. Display control method.

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