Patent ID: 7269843

Claim:
A broadcasting system comprising a broadcasting device for transmitting broadcasting waves, a receiver for receiving said broadcasting waves, and a peripheral device provided outside said receiver; said peripheral device including a remote controller for said receiver, said remote controller comprising a control panel having a display device; said broadcast device comprising a transmission controller for transmitting a combination of broadcast data about a broadcast program and an external control signal for controlling said peripheral device in accordance with contents of said broadcast program in the form of said broadcasting waves to said receiver, said transmission controller comprising a clock element for clocking a broadcasting time of said broadcast program or elapsed time since start of broadcasting as a timing signal and a switching signal transmission element for transmitting a switching signal to said receiver, based on said timing signal, for displaying a display item on the control panel of said remote controller; said receiver comprising a receiver controller for receiving said broadcasting waves from said broadcasting device to output said broadcast data to a reproducer and to transmit a command signal dependent on said external control signal, said receiver controller comprising a switching signal extraction element for extracting said switching signal from said broadcasting waves for a selected channel to transmit said switching signal to said remote controller; and said remote controller being controlled by said command signal and comprising a control element for displaying said display item dependent on said external control signal on said display device and for transmitting to said receiver an information signal responsive to an input operation to said control panel in accordance with said display item, said control element comprising a switching element for switching a first display item on said control panel to a second display item specified by said external control signal in response to said switching signal.