The patent badge is an abbreviated version of the USPTO patent document. The patent badge does contain a link to the full patent document.
The patent badge is an abbreviated version of the USPTO patent document. The patent badge covers the following: Patent number, Date patent was issued, Date patent was filed, Title of the patent, Applicant, Inventor, Assignee, Attorney firm, Primary examiner, Assistant examiner, CPCs, and Abstract. The patent badge does contain a link to the full patent document (in Adobe Acrobat format, aka pdf). To download or print any patent click here.
Patent No.:
Date of Patent:
May. 28, 1991
Filed:
May. 23, 1988
Mitsubishi Denki Kabushiki Kaisha, Tokyo, JP;
Abstract
A coordinate input apparatus of the present invention in which operation is switchable from an image pickup mode for displaying on a display apparatus an image of an object for image-taking to a coordinate input mode for inputting coordinates at a location indicated by a point indicator and vice versa, so that when the coordinate input mode is set, the duration of scanning by an image pickup element is controlled shorter than that in the case of the image pickup mode being set, whereby the duration required for image pickup during coordinate input mode operation can be reduced and speedy processing can be achieved for coordinate inputting, and which is provided with an image processing circuit for optimum image processing with respect to image signals for images taken, so that images taken in short image pickup duration during coordinate input mode can be prevented from deterioration.