Computer graphics processing and selective visual display system – Display peripheral interface input device – Cursor mark position control device
Patent
1994-09-06
1998-01-27
Hjerpe, Richard
Computer graphics processing and selective visual display system
Display peripheral interface input device
Cursor mark position control device
345145, 345179, G09G 508
Patent
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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"Newton", vol. 1, 11, No. 12, pp. 104-107, 1991 Fall.
Arita Setsuo
Kaji Akira
Kawaguchi Koichi
Nagaoka Yukio
Ohga Yukiharu
Hitachi , Ltd.
Hjerpe Richard
Lao Lun-Yi
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