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:
Jul. 15, 2014
Filed:
Aug. 03, 2011
Tatsuyuki Maki, Atsugi, JP;
Osamu Yamashita, Atsugi, JP;
Tatsuyuki Maki, Atsugi, JP;
Osamu Yamashita, Atsugi, JP;
Anritsu Corporation, Atsugi-Shi, JP;
Abstract
[Task] To enable a test of an optical transmission path using an MMF with a simple configuration in an optical pulse test apparatus which is used for an SFM for long-distance transmission. [Means for Resolution] An optical coupler, a light source, a connector, and an optical receiverare respectively connected to each other by SMF optical paths Fa to Fc. A signal processing unitincludes fiber type designation meansfor designating the type of an optical fiber of a test-target optical transmission pathas either an SMF or an MMF, SMF parameter designation meansfor, when an SMF is designated, designating test parameters including the refractive index of the SMF, and MMF parameter designation meansfor, when an MMF is designated, designating test parameters including the refractive index of the MMF. The transmission characteristic of the optical transmission pathusing the designated optical fiber with respect to distance is obtained on the basis of the parameters including the refractive index of the designated optical fiber and intensity data of return light Pr and displayed on a display unit