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:
Jan. 03, 2006
Filed:
Jul. 20, 2001
Hideki Osaka, Oiso, JP;
Susumu Hatano, Higashimurayama, JP;
Toyohiko Komatsu, Yokohama, JP;
Tsutomu Hara, Fujisawa, JP;
Hideki Osaka, Oiso, JP;
Susumu Hatano, Higashimurayama, JP;
Toyohiko Komatsu, Yokohama, JP;
Tsutomu Hara, Fujisawa, JP;
Renesas Technology Corp., Tokyo, JP;
Abstract
A memory module bus system using a plurality of directional couplers to permit high-density packaging. A wiring line (main line) extending from a main controller and cooperating with a sub coupling line to form a directional coupler is open-ended or short-circuited to ensure that a forward wave and a reflection wave can be used to generate signals in opposite directions of the directional coupler. Memory modules are connected to opposite ends of the sub coupling line. The line length of the coupler can be half the pitch between the memory modules.