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:
Feb. 27, 2018
Filed:
Jul. 12, 2016
Applicant:
Azbil Corporation, Chiyoda-ku, JP;
Inventors:
Hiroshi Hatanaka, Chiyoda-ku, JP;
Minoru Tanaka, Chiyoda-ku, JP;
Assignee:
AZBIL CORPORATION, Chiyoda-ku, JP;
Primary Examiner:
Int. Cl.
CPC ...
H01L 27/146 (2006.01); G01S 17/48 (2006.01); G01S 7/491 (2006.01); G05F 3/02 (2006.01);
U.S. Cl.
CPC ...
H01L 27/14605 (2013.01); G01S 7/4913 (2013.01); G01S 17/48 (2013.01); G05F 3/02 (2013.01); H01L 27/14643 (2013.01);
Abstract
A photoelectric sensor includes a current division control circuit that sequentially sets a reference voltage for each current divider circuit along one of the arrangement directions of photodiodes so that the reference voltage for the current divider circuit is equal to or larger than the voltage value of the reference voltage set for a current divider circuit in the preceding stage, and sets one common control voltage for all of the current divider circuits, the common control voltage falling within a range that includes all of the reference voltages.