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:
Dec. 08, 2020
Filed:
Nov. 01, 2018
Applicant:
Hitachi Automotive Systems, Ltd., Hitachinaka, JP;
Inventor:
Tomohiko Yano, Tokyo, JP;
Assignee:
HITACHI AUTOMOTIVE SYSTEMS, LTD., Ibaraki, JP;
Attorney:
Primary Examiner:
Int. Cl.
CPC ...
H04B 3/54 (2006.01);
U.S. Cl.
CPC ...
H04B 3/548 (2013.01); H04B 3/544 (2013.01); H04B 2203/547 (2013.01); H04B 2203/5412 (2013.01); H04B 2203/5416 (2013.01); H04B 2203/5483 (2013.01); H04B 2203/5495 (2013.01);
Abstract
A power line communication device includes a DC power source device, a power line, and a master station that modulates a supply voltage VBUS supplied to the power line according to transmission data to be transmitted. The master station includes a modulation capacitor that is precharged with a modulation amplitude voltage, a polarity switch unit that determines a polarity of the modulation capacitor connected to the power line according to transmission data, and an inductor connected between the DC power source device and the power line.