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:
Oct. 17, 2006
Filed:
Dec. 27, 2002
Hiroshi Sugita, Iwatsuki, JP;
Kenichi Sonobe, Iwatsuki, JP;
Tomokazu Kaneko, Iwatsuki, JP;
Hirota Takahashi, Iwatsuki, JP;
Kazuya Edogawa, Iwatsuki, JP;
Tsutomu Hoshino, Iwatsuki, JP;
Hiroshi Sugita, Iwatsuki, JP;
Kenichi Sonobe, Iwatsuki, JP;
Tomokazu Kaneko, Iwatsuki, JP;
Hirota Takahashi, Iwatsuki, JP;
Kazuya Edogawa, Iwatsuki, JP;
Tsutomu Hoshino, Iwatsuki, JP;
Fuji Xerox Co., Ltd., Tokyo, JP;
Abstract
A USB device for supplying current to a device connected thereto through a USB interface. In this USB device, current values requested by the devices are preset, as detecting current values, in detector registers of current detecting parts. The current detecting parts constantly monitor current values of electric powers supplied to the devices. Each current detecting part compares a related detecting current value with a related supplied current value. If the supplied current value exceeds the detecting current value, the current detecting part informs a current detection control part of abnormality occurrence. The current detection control part sets a bit in a no-good status register, which corresponds to the current detecting part having informed the abnormality occurrence, and interrupts a CPU. In turn, the CPU refers to the no-good status register and specifies the failure device, and interrupts a current supplying path connecting to the failure device.