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<ref>Dimedis - "use the QR-Codes on the screen to directly control contents on the display" [http://dimedis.de]</ref>
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<ref>Game Concourse - communicating and interacting with a display screen using a remote device [http://www.google.com/patents/wo2014036568a1]</ref>
<ref>Heeddooh -scan the QR code with their smartphones, and that will lead them to a website that acts as a remote control [http://www.heeddooh.com/index_en.html]</ref>
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