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:
Sep. 15, 2015
Filed:
May. 31, 2012
Applicants:
Seiji Yamamoto, Tokyo, JP;
Miki Shiraishi, Tokyo, JP;
Yutaka Uneme, Tokyo, JP;
Inventors:
Assignee:
Renesas Electronics Corporation, Kawasaki-shi, JP;
Attorney:
Primary Examiner:
Assistant Examiner:
Int. Cl.
CPC ...
H04B 1/38 (2006.01); H03F 3/195 (2006.01); H04L 25/02 (2006.01); H03F 3/24 (2006.01); H03F 3/45 (2006.01); H03F 3/68 (2006.01); H03F 3/72 (2006.01);
U.S. Cl.
CPC ...
H03F 3/195 (2013.01); H03F 3/24 (2013.01); H03F 3/45475 (2013.01); H03F 3/68 (2013.01); H03F 3/72 (2013.01); H04L 25/0278 (2013.01); H03F 2200/255 (2013.01); H03F 2200/411 (2013.01); H03F 2200/423 (2013.01); H03F 2200/543 (2013.01); H03F 2203/45644 (2013.01); H03F 2203/45686 (2013.01); H03F 2203/45702 (2013.01); H03F 2203/45726 (2013.01);
Abstract
In an embodiment, a semiconductor integrated circuit device includes a driver circuit that drives a transmission line, an output terminal coupled to the output of the driver circuit, and a variable-impedance circuit. The variable-impedance circuit is coupled, for example, between the driver circuit and the output terminals for series-termination of the transmission line.