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. 20, 2001
Filed:
Aug. 30, 1999
Yoshitoshi Ito, Ome, JP;
Hideaki Koizumi, Tokyo, JP;
Atsushi Maki, Hachioji, JP;
Yuichi Yamashita, Kawagoe, JP;
Tsuyoshi Yamamoto, Kokubunji, JP;
Hitachi, Ltd., Tokyo, JP;
Abstract
A device for controlling equipment includes a light projector adapted to project light onto a head of a living body, a light collecting device for collecting the light having passed through the head from the light projector, a light measuring device for measuring an intensity of the light collected by the light collecting device, a memory device for storing a previous history of changes of the intensity of the light measured by the light measuring device, a signal judging circuit for judging if both the intensity of the light measured by the light measuring device and the previous history of changes of the intensity of the light satisfy a predetermined condition, a display device for displaying the intensity of the light measured by the light measuring device and a result obtained by the signal judging circuit, and a control signal generating circuit for generating a control signal to be supplied to an external equipment if the predetermined condition is satisfied.