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:
Jul. 04, 2006
Filed:
May. 12, 2005
Masashi Murakumo, Yokohama, JP;
Hiroaki Natori, Kawasaki, JP;
Osamu Ikeda, Kawasaki, JP;
Yutaka Maruta, Kawasaki, JP;
Kunihiro Ikeda, Kawasaki, JP;
Shinji Hidaka, Kawasaki, JP;
Nobumasa Sasaki, Kawasaki, JP;
Tamotsu Amamoto, Yokohama, JP;
Hiroyuki Nakashima, Yokohama, JP;
Masashi Murakumo, Yokohama, JP;
Hiroaki Natori, Kawasaki, JP;
Osamu Ikeda, Kawasaki, JP;
Yutaka Maruta, Kawasaki, JP;
Kunihiro Ikeda, Kawasaki, JP;
Shinji Hidaka, Kawasaki, JP;
Nobumasa Sasaki, Kawasaki, JP;
Tamotsu Amamoto, Yokohama, JP;
Hiroyuki Nakashima, Yokohama, JP;
Fujitsu Limited, Kawasaki, JP;
Abstract
In an irradiation control device which extends a longevity of an LED, a feedback control is performed to an irradiating portion by an output signal of a photo device provided in relation to the irradiating portion, thereby making brightness fixed. Alternatively, by performing image processing to an image taken by a camera, brightness on a screen is calculated, so that a feedback control is performed to the irradiating portion to make the brightness fixed. Alternatively, based on a recognition rate upon character recognition within the image taken by the camera, a feedback control is performed to the irradiating portion to make the brightness fixed.