Touch screen handling

Details Touch screen handling Touch screen handling

1998-04-01

2000-10-10

Shalwala, Bipin

Computer graphics processing and selective visual display system

Display peripheral interface input device

Touch panel

345174, 345178, 178 1801, 178 1802, 178 1805, 178 1806, G06F 700

Patent

active

061306657

ABSTRACT:
The present invention discloses a data input device including a touch screen. The touch screen has two information display levels. A first level displays a virtual alphanumeric keypad which allows a user to input textual data by simply touching the screen. The second level displays the input textual data. The touch screen allows for simultaneous display of both the virtual keypad and the input data by representing the virtual keypad and underlying textual data by different colors, character sizes, styles, fonts, intensities, etc.

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"Semi-Transparent Cursor", IBM Technical Disclosure Bulletin, vol. 38, No. 10, 1 Oct. 1995, pp. 271-272, XP000540489.

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