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. 22, 2018
Filed:
Jul. 06, 2016
Hitachi Metals, Ltd., Tokyo, JP;
Yohei Shirakawa, Hitachi, JP;
Koki Hirano, Hitachinaka, JP;
HITACHI METALS, LTD., Tokyo, JP;
Abstract
A communication monitoring device includes, a first voltage application circuit, mounted on a first connector portionarranged at one end of a communication cablehaving at least two signal lines, or a first repeateror a first communication device, connecting the first connector portion, wherein the first voltage application circuitapplies an alternating current voltage at a predetermined frequency to between any signal linesin the communication cable, and a second display portion, mounted on a second connector portionarranged at an other end of the communication cable, or a second repeateror a second communication device, connecting the second connector portion, wherein the second display portiondetects and displays the alternating current voltage at the predetermined frequency applied to between the any signal linesin the communication cable