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:
Aug. 12, 2014
Filed:
Jun. 21, 2007
Masami Tanaka, Handa, JP;
Kunihiko Ito, Chiryu, JP;
Manabu Miyazaki, Kariya, JP;
Hiroshi Ota, Nagoya, JP;
Koji Konosu, Kariya, JP;
Masami Tanaka, Handa, JP;
Kunihiko Ito, Chiryu, JP;
Manabu Miyazaki, Kariya, JP;
Hiroshi Ota, Nagoya, JP;
Koji Konosu, Kariya, JP;
Denso Wave Incorporated, Tokyo, JP;
Abstract
In an apparatus for optically reading a graphic symbol composed of a plurality of optically identifiable unit sections of information, a first image pickup unit has a first photodetector and picks up a first optical image of the graphic symbol based on light detected by the first photodetector. A second image pickup unit has a second photodetector and configured to pick up a second optical image of the graphic symbol based on light detected by the second photodetector. A correcting unit corrects a light intensity level of at least one section of one of the first and second optical images based on a light intensity level of at least one section of the other of the first and second optical images. The at least one section corresponds to at least one of the unit sections of information of the graphic symbol.