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. 27, 1993
Filed:
Jul. 10, 1992
Applicant:
Inventors:
Hideyuki Hashi, Kadoma, JP;
Shigeki Murata, Nara, JP;
Assignee:
Matsushita Electric Industrial Co., Ltd., Osaka, JP;
Attorney:
Primary Examiner:
Int. Cl.
CPC ...
G11B / ;
U.S. Cl.
CPC ...
360 75 ;
Abstract
A rotating head apparatus includes an electromechanical conversion element which moves a magnetic head. The electromechanical conversion element allows the contact state between the tape and a rotating head to be stably optimum by varying a voltage applied to the electromechanical conversion element cyclically and according to an output from a discriminator which discriminates the kind of the tape or the rotation speed of the rotating head. Therefore, the apparatus makes it possible to keep the space loss minimum, and prevents a reduction of the performance of signal recording and reproducing.