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:
Apr. 09, 2002
Filed:
Sep. 29, 1999
Masahiro Harima, Atsugi, JP;
Naoki Tatsumi, Atsugi, JP;
Mitsumi Electric Co., Ltd., Tokyo, JP;
Abstract
A magnetic tape recording/reproducing apparatus adapted for loading a magnetic tape cassette has a magnetic head, a magnetic tape loading mechanism that loads and unloads a magnetic tape cassette and loads and unloads a magnetic tape within the magnetic tape cassette to the magnetic head, the magnetic tape loading mechanism assuming a plurality of operating states and an optical detector for optically detecting a shifting of the magnetic tape loading mechanism from one operating state to another operating state. By using non-contact type optical detectors instead of contact-type detectors to detect a shift of operating states from one state to another, the reliability of detection readings can be improved and at the same time the problem of wear on the conventional electrode pattern can be eliminated.