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:
May. 29, 2012
Filed:
Oct. 09, 2009
Koji Bato, Kawasaki, JP;
Taro Asao, Kawasaki, JP;
Yoshinori Tochiki, Kawasaki, JP;
Haruka Miyazaki, Kawasaki, JP;
Akira Yamamoto, Fukuoka, JP;
Katsumi Sugawa, Fukuoka, JP;
Tatsuo Nagayoshi, Fukuoka, JP;
Kousuke Nakamura, Fukuoka, JP;
Koji Bato, Kawasaki, JP;
Taro Asao, Kawasaki, JP;
Yoshinori Tochiki, Kawasaki, JP;
Haruka Miyazaki, Kawasaki, JP;
Akira Yamamoto, Fukuoka, JP;
Katsumi Sugawa, Fukuoka, JP;
Tatsuo Nagayoshi, Fukuoka, JP;
Kousuke Nakamura, Fukuoka, JP;
Fujitsu Limited, Kawasaki, JP;
Abstract
A measurement apparatus for measuring an optical fiber transmission line used to connect to an opposite apparatus, the measurement apparatus includes a transmission part for generating a measurement packet used for measuring a length of a first and second optical fiber transmission line, and transmitting the measurement packet to the opposite apparatus through the first optical fiber transmission line, a reception part for detecting the measurement packet returned from the opposite apparatus that perform a loopback processing of the measurement packet through the second optical fiber transmission line, a calculation part for calculating a packet transmission time which is a processing time required from the generation of the measurement packet to the detection of the measurement packet, and a measurement part for performing a measurement control of the length of the first and second optical fiber transmission line based on the packet transmission time calculated by the calculation part.