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:
Mar. 25, 2008
Filed:
May. 26, 2004
Fumio Hata, Tokyo, JP;
Fumio Hata, Tokyo, JP;
Canon Kabushiki Kaisha, Tokyo, JP;
Abstract
The invention provides a fingerprint input device with a small area and a compact structure, and being manufactured in a simple process, comprising an LED for emitting into a finger a light, an image pickup unit for receiving the light scattered inside the finger, a peripheral circuit unit connected to the image pickup unit, a silicon chipbearing image pickup elements constituting the image pickup unit and the peripheral circuit unit, and a fiber optics plate fixed on the silicon chip, having a surface on which the finger is placed and constituting light transmission portion for transmitting the light, scattered inside the finger placed on the surface to the image pickup element along a direction inclined by a predetermined angle. At least a part of the peripheral circuit unit is formed on the silicon chip opposed to a non-light-transmitting area of the fiber optics plate.