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:
Jun. 11, 2013
Filed:
Apr. 13, 2010
Yoshiyuki Maeda, Fukuoka, JP;
Yumiko Ogata, Fukuoka, JP;
Taku Yoshida, Fukuoka, JP;
Seiji Miyata, Fukuoka, JP;
Yoshiyuki Maeda, Fukuoka, JP;
Yumiko Ogata, Fukuoka, JP;
Taku Yoshida, Fukuoka, JP;
Seiji Miyata, Fukuoka, JP;
Fujitsu Limited, Kawasaki, JP;
Abstract
In an optical transmission device, firmware that operates within a CPU of a first LIU and firmware that operates within a CPU of a second LIU periodically measure a load status of a CPU via an OS, respectively. Switchover control of a master CPU is performed according to a load status of a CPU measured by the firmware of each LIU. For example, when a load status of the CPU of the second LIU is lower than that of the CPU of the first LIU, a master CPU that performs switchover control of a predetermined port is switched to a slave CPU in the first LIU, and a slave CPU related to the predetermined port is switched to a master CPU in the second LIU, thereby dynamically changing the setting.