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:
Jan. 13, 2004
Filed:
Jan. 31, 2001
Yoshiaki Mori, Tokyo, JP;
NEC Corporation, Tokyo, JP;
Abstract
In a system using a looped interface, a faulty device and a disconnected location respectively causing a link fault are specified. Plural devices are connected to the looped interface and a port bypass circuit detaches the faulty device from the looped interface. A port bypass circuit controller controls port bypass circuits and sequentially detaches a device from the looped interface when a link of the looped interface is disconnected. It is checked whether a loop fault continues or not after the device is detached. The operation is repeated by the number of the devices to acquire the result of the check and a device causing the loop fault is specified based upon the result of the check.