Disc playback system and display unit

摘要

A disc playback system comprising a disc drive (1) for reading a coded signal recorded on a disc type recording medium, and transmitting the coded signal through a synchronous channel of a digital bus (3), and plural display units (2-1,...2-n) each receiving the coded signal from the digital bus (3), and decoding and displaying the coded signal, wherein each of the plural display units (2-1,...2-n) outputs disc control information, including a read command for controlling the disc drive (1) so as to read the coded signal from the disc type recording medium, and one of the plural display units (2-1,...2-n) receives the disc control information from the other display units, and the display unit (2-1,...2-n) receives, at least as for the read command, the read commands from all of the other display units (2-1,...2-n) which are operating and, thereafter, outputs one read command to the disc drive (1). Therefore, all of the display units (2-1,...2-n) performing display operations, can display the same picture at the same time.