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. 28, 1982
Filed:
Mar. 13, 1980
Applicant:
Inventors:
Assignee:
Sony Corporation, Tokyo, JP;
Attorneys:
Primary Examiner:
Int. Cl.
CPC ...
G11B / ; G11B / ;
U.S. Cl.
CPC ...
360 77 ; 360109 ;
Abstract
In a video tape recorder which employs a rotary magnetic head secured on a deflectable device, such as a bi-morph leaf, to dynamically perform head tracking during reproduction of previously recorded tracks regardless of the tape transport speed; the height of the magnetic head is detected during recording to produce a feedback control signal which electrically adjusts the height of the magnetic head by deforming the bi-morph leaf to overcome hysteresis deflection of the bi-morph leaf so that the magnetic head is returned to and maintained at a normal height during recording.