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. 18, 2001
Filed:
Oct. 09, 1998
Hiroko Haraguchi, Kasugai, JP;
Fujitsu Limited, Kawasaki, JP;
Abstract
A signal processing apparatus for reading and writing information to a storage medium includes a power supply control circuit that selectively inhibits and enables power to individual circuits of the signal processing apparatus in order to achieve maximum power conservation. The signal processing apparatus looks ahead to determine a next operation to be performed and, using either read or write information of the next operation, along with information concerning how long it takes to power up individual circuits, determines the optimal time to switch power on to the individual circuits. Power is then supplied to the individual circuits of the signal processing apparatus only when it is required by the individual circuits.