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. 17, 2012
Filed:
Jun. 25, 2008
Harumi Kiyomizu, Kokubunji, JP;
Naoto Miura, Kokubunji, JP;
Takafumi Miyatake, Hachioji, JP;
Akio Nagasaka, Kokubunji, JP;
Souichi Sakurai, Yokohama, JP;
Hitoshi Takizawa, Yokohama, JP;
Harumi Kiyomizu, Kokubunji, JP;
Naoto Miura, Kokubunji, JP;
Takafumi Miyatake, Hachioji, JP;
Akio Nagasaka, Kokubunji, JP;
Souichi Sakurai, Yokohama, JP;
Hitoshi Takizawa, Yokohama, JP;
Hitachi, Ltd., Tokyo, JP;
Abstract
In a finger vein authentication unit and an information processing unit using the same, in order to realize a reduction in size and maintain high accuracy such that the finger vein authentication unit is applied to a small-sized information processing unit such as a mobile telephone, the finger vein authentication unit includes a light source which irradiates infrared light to a finger, an imaging sensor which images a vein image by the light which is diffused in the finger and transmitted through the front side of the finger, and an image processing unit which processes the image. The light source is mounted on the front side of the finger and emits the light toward the side surfaces of the finger. Further, a wall is disposed on either side of the finger vein authentication unit for supporting the finger and guiding the irradiated infrared light.