PROJECTION-TYPE VIDEO DISPLAY DEVICE
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United States of America Patent
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Issued Date -
Mar 17, 2016
app pub date -
Apr 26, 2013
filing date -
Apr 26, 2013
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Abstract
A projection-type video display device which is easily radio-connected to a portable terminal and can freely switchably display video images sent from a plurality of portable terminals is provided. The projection-type video display device is directly connected to a portable terminal (2) by a radio transmission scheme without a relay station. The projection-type video display device (1) has a proximity communication unit (10) which transmits/receives device information of the projection-type display device (1) to/from the portable terminal, and the portable terminal (2) is put over or touched on the proximity communication unit (10) to transmit/receive the device information. The projection-type video display device has a radio signal input unit 20 which selects a desired portable terminal from the plurality of portable terminals and connects the selected portable terminal.
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