Information presentation apparatus and information display appar

Computer graphics processing and selective visual display system – Display peripheral interface input device – Cursor mark position control device

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345145, 345179, G09G 508

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active

057126585

ABSTRACT:
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.

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patent: 5548304 (1996-08-01), Yoshiro et al.
"Newton", vol. 1, 11, No. 12, pp. 104-107, 1991 Fall.

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