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.

Date of Patent:
Jun. 23, 2020

Filed:

Feb. 12, 2019
Applicants:

Soken, Inc., Nisshin, Aichi-pref., JP;

Denso Corporation, Kariya, Aichi-pref., JP;

Inventors:

Youhei Sekiya, Nishio, JP;

Hiroyuki Mori, Nishio, JP;

Tomohisa Kishigami, Kariya, JP;

Assignees:

SOKEN, INC., Nisshin, JP;

DENSO CORPORATION, Kariya, JP;

Attorney:
Primary Examiner:
Int. Cl.
CPC ...
H03K 17/16 (2006.01); H04L 25/02 (2006.01); H04B 3/42 (2006.01); H03H 11/24 (2006.01); H04L 12/40 (2006.01);
U.S. Cl.
CPC ...
H03K 17/16 (2013.01); H03H 11/245 (2013.01); H04B 3/42 (2013.01); H04L 12/40006 (2013.01); H04L 25/026 (2013.01); H04L 25/0272 (2013.01); H04L 2012/40215 (2013.01);
Abstract

A ringing suppressor circuit is connected to a differential signal transmission line that includes a high potential signal line and low potential signal line pair for transmitting high and low level differential signals, and includes a ringing suppressor and a stopper. When the differential signal changes to a high level, the ringing suppressor suppresses ringing by lowering the impedance between the signal lines by turning ON of a switching element. When a differential signal voltage drops below a voltage lowering determination voltage, the stopper stops the impedance lowering function of the ringing suppressor by turning OFF another switching element.


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