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:
Apr. 18, 2006
Filed:
Dec. 13, 2002
Mitchell A. Bauman, Circle Pine, MN (US);
R. Lee Gilbertson, Minneapolis, MN (US);
Jerome G. Carlin, St. Paul, MN (US);
Mitchell A. Bauman, Circle Pine, MN (US);
R. Lee Gilbertson, Minneapolis, MN (US);
Jerome G. Carlin, St. Paul, MN (US);
Unisys Corporation, Blue Bell, PA (US);
Abstract
A system and method for managing memory data within a data processing system is disclosed. A main memory is provided to store data signals. When the main memory receives a request to read data signals, the main memory determines whether an updated copy of the requested data signals may be stored within some other storage device within the system. If so, the main memory issues a snoop request to this other storage device to cause any updated copy of the requested data to be returned to the main memory. In addition, the main memory reads the requested data signals from its data store. This data will be used to satisfy the read request if an updated copy of the data signals is not returned to the main memory in response to the snoop request. Otherwise, the updated copy is provided to fulfill the request.