发明名称 Presentation system
摘要 A presentation system includes a computer unit connected to at least radio transmitter-receiver unit and a display device, a plurality of mobile terminal devices communicating with the computer unit via the radio transmitter-receiver unit, and control unit incorporated in the computer unit to provide input information from the mobile terminal devices on the display device, reflecting information from mobile terminal devices on a screen of the display device.
申请公布号 US2004075644(A1) 申请公布日期 2004.04.22
申请号 US20030613041 申请日期 2003.07.07
申请人 HITACHI, LTD. 发明人 MORINAGA TAKENORI;SATOYAMA MOTOAKI;MORIMOTO YOSHIAKI;TAKANO HIDEKI
分类号 G06F3/033;G06F1/16;G09G5/08;H04B7/26;(IPC1-7):G09G5/08 主分类号 G06F3/033
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