CENTER DEVICE, IMAGE DISPLAY SYSTEM, CENTER DEVICE CONTROL METHOD, DISPLAY SYSTEM CONTROL METHOD, DISPLAY SYSTEM CONTROL PROGRAM, CENTER DEVICE CONTROL PROGRAM, AND RECORDING MEDIUM CONTAINING THE PROGRAM

摘要

A TV microcomputer (65) sends a channel switching demand command to a wireless center microcomputer (41), via an SS transmission/reception unit(61) and an SS transmission/reception unit (45) (101, 103, 105). Via the SS transmission/reception unit (45) and the SS transmission/reception unit (61), the wireless center microcomputer (41) returns, to the TV microcomputer (65), a response indicating that the command demanding the channel selection has been received (107, 111, 115). Subsequently, the wireless center microcomputer (41) performs a process demanded by the received channel switching demand (118), and sends, to the TV microcomputer (65), process completion information indicating that the process has been performed (121, 123, 125). Receiving the process completion information, a TV main body (5) performs muting of the screen for a certain period starting from the reception of the information, so as to hide the visual disturbance on account of the delay at the time of the channel switching.