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:
Nov. 13, 1990
Filed:
Aug. 26, 1988
Mitsubishi Denki Kabushiki Kaisha, Tokyo, JP;
Abstract
A head-carrier drum control apparatus in a magnetic recording and/or reproducing apparatus which comprises a rotatably supported head-carrier drum assembly; a drive unit accommodated in the head-carrier drum assembly including a coil, disposed in a magnetic circuit, and at least one positionable magnetic transducing head cooperable with the coil to be displaced in a direction generally widthwise of a length of magnetic tape. The apparatus further includes a contact feeler through which a control current is supplied to the drive unit; an electrode held in contact with the contact feeler and connected electrically with the coil; and a drive circuit for controlling the position of the transducer head so as to cause a trace of movement of the transducing head depicted during information reproduction to properly follow a track recorded by a magnetic transducing head on the length of magnetic tape during information recording.