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. 26, 2011
Filed:
Sep. 08, 2004
Kaoru Hoshide, Tokyo, JP;
Miki Tobita, Tokyo, JP;
Akira Sato, Tokyo, JP;
THK Co., Ltd., Tokyo, JP;
Abstract
At both sides of a pair of doorsL,R, a pair of television cameras (two-dimensional image sensors)A,B for detecting a moving object, and a pair of spare infrared ray sensorsA,B are provided. A central control unitcalculates the position and moving direction of moving object by image processing of outputs of television camerasA,B, and predicts the passing position of moving object on the vertical plane P when the moving object approaches, thereby calculating the target opening degree of a pair of doorsL,R individually, and determines the target opening degree of doors in full closing when the moving object leaves away, and thus outputs move command signals to motor controllersL,R so that the pair of doorsL,R may be set at the target opening degree.