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. 31, 1996
Filed:
Mar. 15, 1995
Katsuya Enami, Higashikurume, JP;
Tohru Miura, Chofu, JP;
TEAC Corporation, , JP;
Abstract
A disk apparatus using a CLV method is provided in which disk apparatus a power consumption is reduced by providing a power save mode in which an operation of a head driving system is stopped during a standby state. The disk apparatus uses a constant linear velocity method by which method a recording/reproducing operation of information on a disk is performed while the disk is rotated at a variable speed so that the linear velocity of the head relative to the disk is maintained to be constant. A disk driving unit rotates the disk, and a head driving unit drives the head. A linear velocity controlling unit controls a rotational speed of the disk so that the linear velocity of the head relative to the disk is maintained to be constant. A constant rotational speed controlling unit rotates the disk at a constant rotational speed. A switching unit switches a control of the disk driving unit to be performed by either one of the linear velocity controlling unit and the constant rotational speed controlling unit. A stopping unit stops an operation of the head driving unit while the disk driving unit is controlled by the constant rotational speed controlling unit.