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:
Jul. 07, 2009
Filed:
Aug. 31, 2006
Tomoya Makino, Kawasaki, JP;
Junichi Ogawa, Kawasaki, JP;
Tomoya Makino, Kawasaki, JP;
Junichi Ogawa, Kawasaki, JP;
Fujitsu Limited, Kawasaki, JP;
Abstract
In a detection element for the current which flows from a power source to a disk apparatus internal circuit, a plurality of resistors are incorporated such that the detection resistance for consumption current can be selected. Based on apparatus identification information from an apparatus identification unitsuch as a current identification signal outputting circuit or an apparatus identification structure provided in a disk apparatus unit, the detection element switching circuit switches the detection resistance value of the detection element. A voltage detection circuit detects the potential difference between both terminals of the detection element. When a current control circuit detects an excessive current based on the potential difference, the current control circuit turns off a transistor (FET).