Abstract: Light emitting diodes are placed side by side at a front end of the remote control transmitter in a manner that their maximum radiation directions, i.e. radiation directions each giving a maximum radiation intensity, are each inclined at an angle within a range no larger than 5 degrees outwardly of the remote control transmitter 1 and symmetrically with respect to a bisector of a line segment which connects center points of the light emitting diodes. The inclination, within a range no larger than 5 degrees, of each of the light emitting diodes used as light sources for remote control does not cause significant reduction in the radiation intensity. Accordingly, it is possible to widen the transmittable angle within a range no larger than 10 degrees without significantly reducing the radiation intensity at a central portion of the radiation range.

Abstract: A TV receiver comprises: a tuner connected to a unidirectional antenna or a smart antenna; a reception control unit for outputting, to the tuner, a channel control signal to command a channel, and outputting, to the smart antenna, a receiving direction control signal to command a receiving direction; and an antenna selection switch for a user to select the either antenna. The reception control unit switches its control mode between a unidirectional antenna mode and a smart antenna mode. In the unidirectional antenna mode, the reception control unit outputs a channel control signal to the tuner. In the smart antenna mode, the reception control unit outputs the channel control signal and the receiving direction control signal to the tuner and the smart antenna, respectively, for controlling the TV signal reception. This TV receiver can properly switch the antenna control mode, depending on the kind of antenna selected by the user.