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. 16, 1998
Filed:
Jun. 24, 1996
Tsukasa Ogino, Yokohama, JP;
Canon Kabushiki Kaisha, Tokyo, JP;
Abstract
In an information recording/reproducing apparatus, a head is moved across tracks on a recording medium to thereby perform a coarse seek to a position near a target position. A recording/reproducing portion of the head is moved in the track intersection direction to thereby perform a fine seek to the target position. A moving velocity of the portion of the head with respect to the medium is detected by a first detector. A target moving velocity is caluculated in accordance with a remaining distance to the target position of the portion of the head. A moving displacement or moving velocity of the portion of the head is detected by a second detector. A detection value from the first detector is corrected on the basis of a detection value from the second detector to eliminate a variation component generated by a disturbance of the portion of the head.