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:
Jun. 27, 1995
Filed:
Aug. 10, 1994
Applicant:
Inventor:
Tsukasa Ogino, Kawasaki, JP;
Assignee:
Canon Kabushiki Kaisha, Tokyo, JP;
Attorney:
Primary Examiner:
Assistant Examiner:
Int. Cl.
CPC ...
G11B / ;
U.S. Cl.
CPC ...
369 4428 ; 369 32 ; 360 7806 ;
Abstract
An information recording-reproducing apparatus in which the seeking operation of an information recording/reproducing head is effected while controlling the velocity of the head. The head is moved by a linear motor in a direction to traverse the tracks provided on a recording medium. During the movement of the head, a tracking error signal is generated and is detected. The moving velocity of the head is detected at every predetermined period. The linear motor is controlled in synchronization with the velocity detection so that the head moves in conformity with a predetermined target velocity on the basis of the detected moving velocity.