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:
Dec. 16, 2008
Filed:
Jan. 21, 2005
Yuji Ishii, Yokohama, JP;
Kazuyuki Mori, Kawasaki, JP;
Tamotsu Akashi, Kawasaki, JP;
Yoshio Sakai, Kawasaki, JP;
Yuji Ishii, Yokohama, JP;
Kazuyuki Mori, Kawasaki, JP;
Tamotsu Akashi, Kawasaki, JP;
Yoshio Sakai, Kawasaki, JP;
Fujitsu Limited, Kawasaki, JP;
Abstract
A mirror controller of an optical switch comprises a signal generator () for passing the optical signal on the same light path as the one for optical communication using the optical switch, and an image analyzer () detecting the optical signal as the light scattered by at least one of tilt mirrors () and an output collimator array (). The image analyzer detects the position of the light beam image as a control position () based on the scattered light, and controls the tilt mirrors in such a manner that the detected control position coincides with the predetermined desired target position () on at least one of the tilt mirrors and the output collimator array. The mirror controller can realize the connection test of the optical signal between input and output with high accuracy and reliability.