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:
Aug. 23, 2016
Filed:
Jun. 27, 2008
Applicant:
Koji Ishikawa, Kawasaki, JP;
Inventor:
Koji Ishikawa, Kawasaki, JP;
Assignee:
Canon Kabushiki Kaisha, Tokyo, JP;
Attorney:
Primary Examiner:
Int. Cl.
CPC ...
H05K 1/02 (2006.01); H04N 5/225 (2006.01); H05K 1/18 (2006.01); H05K 3/46 (2006.01);
U.S. Cl.
CPC ...
H05K 1/0218 (2013.01); H04N 5/2253 (2013.01); H05K 1/0219 (2013.01); H05K 1/0237 (2013.01); H05K 1/0298 (2013.01); H05K 1/189 (2013.01); H05K 3/4611 (2013.01); H05K 2201/0715 (2013.01); H05K 2201/09072 (2013.01); H05K 2201/09236 (2013.01); H05K 2201/09336 (2013.01); H05K 2201/10121 (2013.01); H05K 2201/10189 (2013.01);
Abstract
A print circuit board includes a first layer on which a land is formed, a second layer on which an analog signal pattern and a first ground pattern are wired, a third layer on which a digital signal pattern and a second ground pattern are wired, and a fourth layer on which a third ground pattern is wired. The digital signal pattern is vertically sandwiched between the first ground pattern and the third ground pattern. The analog signal pattern and digital signal pattern are arranged without overlapping each other on the projection plane. The analog signal pattern and second ground pattern are arranged so as to overlap each other.