Greer, Burns & Crain Ltd.
Projection image display device
A projection image display device capable of operating only predetermined one among a plurality of projection image displays. An AND gate 25 performs switching between first and second states, the first state being for transmitting a remote control signal received by an IR receiving section 23 to a control unit 11 according to an output of a switch circuit 24, and the second state being for transmitting no remote control signals received by the IR receiving section 23 to the control unit 11. The switch circuit 24 may be switched manually or by means of a signal from the control unit 11. 
Fujitsu Limited
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inventional inventional inventional inventional
Masaya Hiroyuki
Fujita Isogai