Document processing device

Details Document processing device Document processing device

1996-07-03

2000-06-06

Luu, Matthew

Computer graphics processing and selective visual display system

Display peripheral interface input device

Touch panel

345174, 345179, G09G 500

Patent

active

060724749

ABSTRACT:
When a user touches a tablet with a pen, a coordinate pointed with a nib of a pen and a tool force on this coordinate are detected, and a cursor is displayed at a position corresponding to the coordinate in a display device. Furthermore, the shape, color and size, etc., of the cursor can be varied according to a change in coordinate, tool force. This permits the user to recognize a level of the tool force which he actually applies at a glance. Additionally, an operational mode is switched according to an amount of change in detected coordinate and the tool force. As a result, the user is permitted to control an operational mode of the document processing device with ease only by a pen operation, thereby improving an operability.

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patent: 5134388 (1992-07-01), Murakami
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patent: 5483261 (1996-01-01), Yasutake
patent: 5635683 (1997-06-01), McDermott et al.
"Pressure-Sensitive Trackball Device," IBM Technical Disclosure Bulletin, vol. 38, No. 10, Oct. (1995) Armonk, NY, US.
"Pressure-Sensitive Mouse," IBM Technical Disclosure Bulletin, vol. 35, No. 6, Nov. 1992, Armonk, NY, US.

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