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:
Nov. 22, 1994
Filed:
Jun. 16, 1993
Hiroshi Yoshimatsu, Kanagawa, JP;
Shinji Murakami, Hokkaido, JP;
Mitsuho Yamada, Tokyo, JP;
Kenya Uomori, Osaka, JP;
Hitoshi Hongo, Gifu, JP;
Keiichi Ueno, Tokyo, JP;
Mitsuru Fujii, Hokkaido, JP;
Norihito Nakano, Hokkaido, JP;
Jiro Miyazawa, Hokkaido, JP;
Ryo Fukatsu, Hokkaido, JP;
Naohiko Takahata, Hokkaido, JP;
Abstract
A target is presented on a board for calculation, eye movement of a subject while he is gazing at the target is detected by an eye movement detecting portion, the output of which is converted into a digital signal in a signal processing circuit and it is applied to a calculating portion. The calculating portion calculates small involuntary movement data in response to the input digital signal to find a value of a fractal dimension and time dependence of the fractal dimension to determine a disease related to brain function, and the output of determination is provided from an output portion such as a printer.