Computer graphics processing and selective visual display system – Display peripheral interface input device – Touch panel
Patent
1993-02-24
2000-08-08
Chang, Kent
Computer graphics processing and selective visual display system
Display peripheral interface input device
Touch panel
178 1806, G09G 500
Patent
active
061008761
ABSTRACT:
In an information processing apparatus, a processing mode is switched on the basis of speed of change of coordinate data which is inputted by coordinate data input means comprising a pen and a tablet, the speed of change of the coordinate data being detected during a period over which the pen is pressed down on the tablet, the coordinate data being inputted by electrostatic capacitance between the pen and the tablet, the electrostatic capacitance being effective up to a predetermined distance between the pen and the tablet. This allows the speed of the pen to be determined during a first period when the pen is contacting the tablet, and/or during a second period when the pen is just out of contact with the tablet.
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Brad A. Myers, "A Taxonomy of Window Manager User Interfaces", IEEE Computer Graphics and Applications, vol. 8, No. 5, Sep. 1988, New York, NY, USA, pp. 65-84.
Chang Kent
Sony Corporation
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