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:
Aug. 03, 1993
Filed:
Jan. 07, 1993
Applicant:
Inventor:
Masahiro Morisada, Tokyo, JP;
Assignee:
Canon Kabushiki Kaisha, Tokyo, JP;
Attorney:
Primary Examiner:
Assistant Examiner:
Int. Cl.
CPC ...
G11B / ;
U.S. Cl.
CPC ...
369 4432 ; 369 54 ; 369 4436 ; 360 7704 ;
Abstract
Disclosed is a servo control system, which controls the position of a recording and/or reproducing head at the desired track on a record medium, comprising an actuator for moving the head relative to the track, a positional deviation detector, a controller for outputting the control signals for the actuator in such a manner that the head is put in the desired position relative to the track, a component for applying disturbance signals to the output of the controller, and a component for adjusting parameters of the controller which determines the correlation of the transfer characteristics at each frequency.