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:
Apr. 18, 2023
Filed:
Jul. 05, 2019
Nippon Telegraph and Telephone Corporation, Tokyo, JP;
Nippon Telegraph and Telephone Corporation, Tokyo, JP;
Abstract
Connection normality check of a pair of electric wires is simplified. A circuit check devicethat checks connection normality of a pair of electric wires Land Lincludes, when the pair of electric wires is connected to an exchange, a voltmeterthat measures a first inter-wire potential difference between one end of an electric wire portion pof the electric wire Land one end of an electric wire portion pof the electric wire L, a voltmeterthat measures a second inter-wire potential difference between the other end of the electric wire portion pof the electric wire Land the other end of the electric wire portion pof the electric wire L, and a determinerthat determines whether the measured first inter-wire potential difference agrees with the measured second inter-wire potential difference.