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:
Jun. 30, 2020
Filed:
Apr. 15, 2016
Mitsubishi Electric Corporation, Tokyo, JP;
Mitsubishi Electric Corporation, Tokyo, JP;
Abstract
In an air-conditioning apparatus and a method of detecting an abnormality in a transmission line, the air-conditioning apparatus includes plural facility apparatuses which are connected to each other by a transmission line and communicate with each other. One of the plural facility apparatuses includes: a transmission circuit including an abnormality detection comparator which detects an abnormality in the transmission line, the transmission circuit being provided to detect the abnormality in the transmission line; and a data storage device which stores a reception signal and signal voltage wave-height information indicating that the abnormality in the transmission line is detected. The transmission circuit further compares a voltage value of a reception signal received from another of the plural facility apparatuses through the transmission line with a threshold value set in advance in the abnormality detection comparator.