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. 12, 2000
Filed:
Jul. 30, 1998
Hiroshi Kumita, Kawasaki, JP;
Fujitsu Limited, Kawasaki, JP;
Abstract
An information storage apparatus can be set to a sleep mode and returned from the sleep mode to a regular operation mode in a short time. A clock generating circuit generates a first clock and a second clock having a frequency different from the frequency of the first clock. A control circuit is operated by the first clock for controlling storage of information on a recording medium. The recording medium is rotated by a motor at a first speed for storing information. The motor is operated by a clock corresponding to the first clock. A time is measured after a final access is made to the recording medium. The frequency of the first clock is changed when the measured time reaches a predetermined time, and the clock supplied to the motor is switched from the first clock to the second clock.