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:
Jun. 19, 2001
Filed:
Dec. 01, 1999
Jun Ohshimo, Osaka, JP;
Tsubakimoto Chain Co., Osaka, JP;
Abstract
The position of a movable body is detected by emitting a laser light in all the directions around a truck as the movable body by means of an optical unit including a laser oscillator and a CCD camera, receiving the laser light reflected by reflectors disposed at a plurality of positions in a moving area, and making comparisons between comparison data being different at each position of the truck in the moving area and reference data of the received-light data at the plurality of positions in the moving area. The comparison data is obtained from a received-light luminance distribution of the reflected laser light and an angle &thgr; obtained by a gyrosensor relative to a reference direction.