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. 22, 2015
Filed:
Feb. 16, 2012
Applicant:
Seiji Hayashi, Yokohama, JP;
Inventor:
Seiji Hayashi, Yokohama, JP;
Assignee:
CANON KAUBSHIKI KAISHA, Tokyo, JP;
Attorney:
Primary Examiner:
Int. Cl.
CPC ...
H05K 1/11 (2006.01); H05K 1/14 (2006.01); H05K 1/02 (2006.01);
U.S. Cl.
CPC ...
H05K 1/0231 (2013.01); H05K 1/0233 (2013.01); H05K 1/0234 (2013.01); H05K 2201/09309 (2013.01); H05K 2201/09336 (2013.01); H05K 2201/09781 (2013.01); H05K 2201/1003 (2013.01); H05K 2201/10022 (2013.01); H05K 2201/10522 (2013.01); H05K 2201/10545 (2013.01); H05K 2201/10689 (2013.01); H05K 2201/10734 (2013.01);
Abstract
A power source terminal and a ground terminal for a semiconductor integrated circuit are connected to a conductor pattern through a capacitor. The conductor pattern is connected, through a filter, to a plane conductor connected to neither a ground plane nor a power source plane. Thus, a common mode noise arising from between the power source and the ground is caused to flow into the plane conductor. This reduces the common mode noise flowing in the ground and the power source of the printed wiring board, which relatively act as antennas.