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:
Mar. 24, 2015
Filed:
Sep. 29, 2011
Applicant:
Tadao Saito, Kawasaki, JP;
Inventor:
Tadao Saito, Kawasaki, JP;
Assignee:
Canon Kabushiki Kaisha, Tokyo, JP;
Attorney:
Primary Examiner:
Int. Cl.
CPC ...
H05K 7/10 (2006.01); G06F 3/12 (2006.01);
U.S. Cl.
CPC ...
G06F 3/1279 (2013.01); G06F 3/122 (2013.01); G06F 3/1221 (2013.01); G06F 3/1229 (2013.01);
Abstract
This invention is directed to enhancement of flexibility when connecting an add-in card conforming to the PCI-Express specification. More specifically, the operation mode of the system board of a printing apparatus is configured to cope with both a root-complex and end-point. When an add-in card is inserted into an extension slot, the type of add-in card is discriminated by confirming the ON state of a detection pin. When the inserted add-in card operates as a root-complex, the system board is set to operate as an end-point. When the inserted add-in card operates as an end-point, the system board is set to operate as a root-complex.