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Patent Searching and Data

Document Type and Number:
Japanese Patent JPS6476111
Kind Code:

PURPOSE: To decrease a processing load by calculating the coordinates of the peak point of a rectangular are to surround a hand-written drawing picture inputted during the period from a pen-down condition to a pen-up condition and transmitting them to a host computer to connect the obtained coordinates.

CONSTITUTION: A hand-writing tablet device is composed of an input coordinates detecting part 1, an area calculating part 2, an area register 3, an input coordinates transmitting part 4, an area coordinates transmitting part 5 and a host computer 6. Concerning the hand-written drawing picture inputted continuously from a pen-down condition to a pen-up condition, the coordinates of the peak point of rectangular are to surround the hand-written drawing picture are calculated based on the coordinates string detected successively by the hand-writing tablet device and transmitted to the host computer 6 to connect the obtained coordinates. Thus, at the computer 6, the decision whether or not the drawing picture is included in the rectangular area which becomes the editing operation object can be simply executed by the simple comparison of both areas.

Ueda, Tetsuo
Application Number:
Publication Date:
March 22, 1989
Filing Date:
September 17, 1987
Export Citation:
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International Classes:
G06F3/041; G06F3/03; G06F3/048; (IPC1-7): G06F3/03