MOVABLE RECEIVER FOR SATELLITE BROADCAST

摘要

PURPOSE:To switch the dynamic image/still image without displaying the scramble image in receiving the scramble satellite broadcast by a moving body. CONSTITUTION:The satellite broadcasting radiowave accepted by an antenna 1 is selected and demodulated by a CS/BS tuner 3. An FM detection signal 4, voice bit stream signal 5, C/N ratio 6 are detected to allow a scramble decoder 7 to perform descramble picture processing. A video signal 10 and a descramble data signal 8 are outputted. The video signal 10 and a still picture 12 by a memory 11 are inputted to a video signal switching circuit 14. A controller 9 controls switching the dynamic image/still image based on the C/N ratio 6 and the descramble status signal 8.