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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.:

US 9577709 B1

PDFFull Text
Date of Patent:
Feb. 21, 2017

Filed:

Jul. 13, 2012

Communication system and communication device

Applicants:

Ryou Okada, Osaka, JP;

Takeshi Hagihara, Osaka, JP;

Yutaka Komatsu, Osaka, JP;

Tatsuya Izumi, Osaka, JP;

Kazuhiko Nii, Osaka, JP;

Yousuke Takata, Osaka, JP;

Hiroya Andoh, Toyota, JP;

Yuta Ochiai, Toyota, JP;

Ryuichi Kamaga, Toyota, JP;

Atsushi Iwai, Toyota, JP;

Yukihiro Miyashita, Toyota, JP;

Nobuyuki Nakagawa, Toyota, JP;

Inventors:

Ryou Okada, Osaka, JP;

Takeshi Hagihara, Osaka, JP;

Yutaka Komatsu, Osaka, JP;

Tatsuya Izumi, Osaka, JP;

Kazuhiko Nii, Osaka, JP;

Yousuke Takata, Osaka, JP;

Hiroya Andoh, Toyota, JP;

Yuta Ochiai, Toyota, JP;

Ryuichi Kamaga, Toyota, JP;

Atsushi Iwai, Toyota, JP;

Yukihiro Miyashita, Toyota, JP;

Nobuyuki Nakagawa, Toyota, JP;

Assignees:

SUMITOMO ELECTRIC INDUSTRIES, LTD., Osaka, JP;

SUMITOMO WIRING SYSTEMS, LTD., Mie, JP;

AUTONETWORKS TECHNOLOGIES, LTD., Mie, JP;

TOYOTA JIDOSHA KABUSHIKI KAISHA, Aichi, JP;

Attorney:

McDermott Will & Emery LLP

Primary Examiner:

Daniel Washburn

Assistant Examiner:

Sarah Hassan

Int. Cl.
CPC ...
H04K 1/10 (2006.01); H01F 27/42 (2006.01); H04B 3/54 (2006.01); H01F 38/14 (2006.01); B60L 11/18 (2006.01); H02J 7/00 (2006.01);
U.S. Cl.
CPC ...
H04B 3/54 (2013.01); B60L 11/1812 (2013.01); B60L 11/1818 (2013.01); B60L 11/1824 (2013.01); B60L 11/1846 (2013.01); B60L 11/1861 (2013.01); H01F 38/14 (2013.01); H02J 7/0004 (2013.01); H04B 3/548 (2013.01); B60L 2210/30 (2013.01); B60L 2240/527 (2013.01); B60L 2270/147 (2013.01); H04B 2203/547 (2013.01); H04B 2203/5416 (2013.01); Y02T 10/705 (2013.01); Y02T 10/7005 (2013.01); Y02T 10/7044 (2013.01); Y02T 10/7072 (2013.01); Y02T 10/7241 (2013.01); Y02T 90/121 (2013.01); Y02T 90/127 (2013.01); Y02T 90/128 (2013.01); Y02T 90/14 (2013.01); Y02T 90/16 (2013.01); Y02T 90/163 (2013.01); Y02T 90/169 (2013.01); Y04S 30/14 (2013.01);
Abstract

An output circuit sends out, to an input circuit, a control pilot signal generated by a voltage source. A voltage transformer is provided to a control pilot line on the output side of the output circuit, and a communication unit transmits and receives communication signals via the voltage transformer. A voltage transformer is provided to the control pilot line on the input side of the input circuit, and a communication unit transmits and receives the communication signals via the voltage transformer. A low-pass filter is provided to the control pilot line between the input circuit and the voltage transformer.

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