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:
Feb. 19, 2013
Filed:
Jun. 30, 2010
Bruce G. Hazelzet, New Port Richey, FL (US);
Bruce G. Hazelzet, New Port Richey, FL (US);
International Business Machines Corporation, Armonk, NY (US);
Abstract
An enhanced four rank enabled buffer device that includes input ports for receiving input data that includes address and command data directed to one or more of up to four ranks of memory devices. The buffer device also includes one or more buffer circuits for driving one or more of the address and command data, a plurality of chip select input lines for selecting between the up to four ranks of memory devices, and a plurality of chip select output lines for accessing the up to four ranks of memory devices. The buffer device further includes a power savings means for causing one or more of the buffer circuits to be in an inactive mode when corresponding chip select input lines are not active. The buffer device is operable to access the up to four ranks of memory devices.