Abstract: Control commands are sent from communication stations (A, B) to devices (D to F), such as a VTR, connected to a communication station (C) via radio networks (NW) provided between the communication stations (A, B) and the communication station (C), thereby controlling the devices (D to F). As a result, video signals outputted from the devices (D to F) via analog wirings (W) are sent from the communication station (C) to the communication stations (A, B) so that videos based on the video signals are displayed in display devices (A11, B11) via the communication stations (A, B). In the communication station (C), identifiers for specifying controllers (A1, B1) which have sent the control commands to the communication stations (A, B) and identifiers for specifying the devices (D to F) controlled are made to respectively correspond to each other, and are stored so that a controller which can be allowed to control is specified.

Abstract: Control commands are sent from communication stations (A, B) to devices (D to F), such as a VTR, connected to a communication station (C) via radio networks (NW) provided between the communication stations (A, B) and the communication station (C), thereby controlling the devices (D to F). As a result, video signals outputted from the devices (D to F) via analog wirings (W) are sent from the communication station (C) to the communication stations (A, B) so that videos based on the video signals are displayed in display devices (A11, B11) via the communication stations (A, B). In the communication station (C), identifiers for specifying controllers (A1, B1) which have sent the control commands to the communication stations (A, B) and identifiers for specifying the devices (D to F) controlled are made to respectively correspond to each other, and are stored so that a controller which can be allowed to control is specified.

Abstract: When the operator pushes a switching button provided on a controller, a local communication station selects a remote communication station in accordance with a predetermined order, and in the remote communication station, a device is selected in accordance with a predetermined order. When the operator pushes the switching button provided on the controller again, a message that switching to all devices in the remote communication station has been completed is transmitted to the local communication station, and in accordance with the foregoing order, a remote communication station, which is a remote communication station to be selected next, is selected. In the remote communication station concerned, a device is selected in the same manner in accordance with a predetermined order. With this arrangement, it is possible to easily select a desired content even if contents such as devices are located at a plurality of stations in a dispersed manner.