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. 27, 2016
Filed:
Feb. 06, 2014
Applicant:
Canon Kabushiki Kaisha, Tokyo, JP;
Inventor:
Masanori Kikuchi, Yokohama, JP;
Assignee:
CANON KABUSHIKI KAISHA, Tokyo, JP;
Attorney:
Primary Examiner:
Int. Cl.
CPC ...
H05K 1/02 (2006.01); G11C 29/02 (2006.01); H05K 1/11 (2006.01);
U.S. Cl.
CPC ...
H05K 1/0246 (2013.01); G11C 29/023 (2013.01); G11C 29/025 (2013.01); H05K 1/0243 (2013.01); H05K 1/114 (2013.01); H05K 2201/10159 (2013.01);
Abstract
A memory system is provided with a motherboard, and a memory controller and a plurality memory devices mounted on the motherboard. The motherboard comprises a unicursal-shape main wiring, and branch wirings branched from the main wiring to the respective memory devices. Further, the motherboard comprises an open stub wiring branched from a connecting point between a start end and a branch point of the main wiring. Thus, a ringing of a waveform of a signal received by a receiving circuit can be suppressed irrespective of a wiring length of the branch wiring.