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.

Date of Patent:
Jul. 18, 2017

Filed:

Oct. 31, 2015
Applicant:

Hitachi Metals, Ltd., Tokyo, JP;

Inventors:

Yohei Shirakawa, Hitachi, JP;

Koki Hirano, Hitachinaka, JP;

Yoshitake Ageishi, Hitachi, JP;

Assignee:
Attorney:
Primary Examiner:
Int. Cl.
CPC ...
G08B 21/00 (2006.01); H04L 29/06 (2006.01); H04L 12/413 (2006.01); H04B 10/07 (2013.01); G01R 19/145 (2006.01);
U.S. Cl.
CPC ...
H04L 29/06 (2013.01); H04B 10/07 (2013.01); H04L 12/413 (2013.01); G01R 19/145 (2013.01);
Abstract

A cable signal detector is configured to detect the presence or absence of information communication in a communication cable including a plurality of signal line pairs for differential signaling. The cable signal detector includes a plurality of detecting portions each of which is configured to partially branch and draw a transmission signal from a different signal line pair, rectify the branched and drawn signal into a direct current, and output that direct current, and a displaying portion configured to display the presence or absence of information communication, based on outputs of the plurality of detecting portions. The outputs of the plurality of detecting portions are connected in series, and the displaying portion is configured to display the presence or absence of information communication, based on an overall output voltage of the plurality of detecting portions connected in series.


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