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:
Sep. 13, 1994
Filed:
Mar. 16, 1993
Hitoshi Hongo, Kyoto, JP;
Mitsuho Yamada, Kyoto, JP;
Kenya Uomori, Kyoto, JP;
Hiroshi Yoshimatsu, Kyoto, JP;
Keiichi Ueno, Kyoto, JP;
Mitsuru Fujii, Hokkaido, JP;
Shinji Murakami, Hokkaido, JP;
Jiro Miyazawa, Hokkaido, JP;
Norihito Nakano, Hokkaido, JP;
Ryo Fukatsu, Hokkaido, JP;
Naohiko Takahata, Hokkaido, JP;
Abstract
When eye movement of a subject is detected by an eye movement detecting portion and head movement of the subject is detected by a head movement detecting portion, a line-of-sight calculating portion calculates the line-of-sight according to the detected outputs therefrom. A portion for generating an image to be presented generates an image as a task and presents the image to a task presenting portion. When a fixation point of the line-of-sight of the subject is determined by a fixation point determining portion, a mask image generated by a masking image generating portion is inserted to the task image by an image synthesizing portion, and it is presented at the task presenting portion. A portion for determining degree of advance of dementia determines degree of advance and possibility of Alzheimer's disease based on the particular movement of the line-of-sight of the subject at that time and on the percentage of correct answer to a prescribed task.