Computer graphics processing and selective visual display system – Display peripheral interface input device
Patent
1997-01-10
1999-11-30
Shankar, Vijay
Computer graphics processing and selective visual display system
Display peripheral interface input device
345174, 345180, 178 1801, 178 1803, 178 1901, G08C 2100, G09G 500, G09G 100
Patent
active
059950811
ABSTRACT:
A handwriting type input display device is provided with a display device for performing a two-dimensional display, an input device which constitutes a handwriting device in combination with the display device, and is adapted to detect a handwriting input operation by a user at a coordinate position corresponding to a position on a screen of the display device, a passing point predicting device for receiving the coordinate point sequence from the input device to insert a new coordinate point sequence between neighboring coordinate points of the coordinate point sequence, and outputting a coordinate point sequence for forming a smooth handwritten curved line, and a processing device for instructing an insertion method of coordinate points to the passing point predicting device, and performing processing of displaying on the display device a curved line based on the coordinate point sequence which is obtained by the passing point predicting device.
REFERENCES:
patent: 4866646 (1989-09-01), Nakamura
patent: 5294792 (1994-03-01), Lewis et al.
patent: 5459809 (1995-10-01), Kim et al.
patent: 5467407 (1995-11-01), Guberman et al.
patent: 5698822 (1997-12-01), Haneda et al.
NEC Corporation
Shankar Vijay
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