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. 17, 2022
Filed:
Dec. 16, 2019
Hanwha Corporation, Seoul, KR;
Se Ho Kim, Boeun-gun, KR;
Jeong Ho Choi, Boeun-gun, KR;
HANWHA CORPORATION, Seoul, KR;
Abstract
A communication system includes a transmitter and a receiver connected through a cable. The transmitter transmits a first signal to the receiver using a voltage applied to the cable. A control circuit of the receiver receives the first signal and transmitting a second signal to the transmitter using a current flowing to the cable. A charging circuit of the receiver performs a charging operation by receiving the voltage through the cable and supplying a driving voltage to the control circuit. The control circuit includes a filter generating a second voltage by extracting a voltage within a reference range from a peak voltage of a first voltage and a voltage meter extracting the first signal by measuring the second voltage.