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:
Sep. 14, 2004
Filed:
Nov. 22, 2000
Hideaki Tanishima, Kasugai, JP;
Fujitsu Limited, Kawasaki, JP;
Abstract
A data recording apparatus that accurately records constant linear velocity (CLV) or zone constant linear velocity (ZCLV) data on a recording medium while rotating the recording medium based on the CAV method. A data recording apparatus supplies data recorded on a recording medium, which is rotated by a motor, to a pickup device. The pickup device generates position information indicating the position of the pickup device with respect to the recording medium. The apparatus includes a recording control circuit that controls the motor such that the recording medium is rotated in a manner compliant with a constant angular velocity (CAV) method and controls an output rate of the data supplied to the pickup device based on the position information such that the data is recorded on the recording medium in a manner compliant with a CLV or a ZCLV method.