发明名称 |
Information presentation apparatus and information display apparatus |
摘要 |
A pointer remotely points a display screen of a large screen display device. The display screen is picked up by a monitor camera. An image processing unit extracts a feature of the pointer used for pointing based on the resulting image signal to identify the position of the pointing point and the pointer based on the feature. A computer generates information on an object to be displayed at a position pointed by the pointer. The generated information is displayed on a display device (CRT display device or large screen display device) assigned to the pointer. Even when a plurality of pointers are used, the information on the object to be displayed pointed by the pointer is properly displayed. |
申请公布号 |
US5835078(A) |
申请公布日期 |
1998.11.10 |
申请号 |
US19950484814 |
申请日期 |
1995.06.07 |
申请人 |
HITACHI, LTD. |
发明人 |
ARITA, SETSUO;OHGA, YUKIHARU;YUCHI, HIROYUKI;SEKI, HIROSHI;NAGAOKA, YUKIO;KAWAGUCHI, KOICHI;KAJI, AKIRA |
分类号 |
G05B23/02;G06F3/033;G06F3/038;G06F3/042;(IPC1-7):G09G5/08 |
主分类号 |
G05B23/02 |
代理机构 |
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代理人 |
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主权项 |
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地址 |
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