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:
Dec. 30, 2003
Filed:
Jan. 09, 2003
Koujiro Hashimoto, Kawasaki, JP;
Fujitsu Limited, Kawasaki, JP;
Abstract
A position detecting apparatus and a library apparatus that have a flag and a sensor for detecting the flag can shorten time required to perform a position detecting process. The position detecting apparatus comprises a flag and a CCD sensor , the flag being provided in a cabinet or a magnetic tape recording-playing apparatus and being formed of a first white part and a second white part with high reflectivity of light and a black part with low reflectivity of light, and the CCD sensor being provided in a medium holding mechanism and detecting optically the first white part , the second white part and the black part in the flag . The first white part and the second white part are formed as a pair of right isosceles triangles and are positioned symmetrically with respect to an axis of the flag. Furthermore, the CCD sensor is formed of a line type CCD sensor so as to detect the flag linearly. Accordingly, based on a detection result by the CCD sensor , the position detecting apparatus detects a relative position of the medium holding mechanism to the cabinet or the magnetic tape recording-playing apparatus