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. 31, 2012
Filed:
May. 26, 2009
Brett A. Shirley, Bellevue, WA (US);
Laurion Burchall, Seattle, WA (US);
Matthew Gossage, Bellevue, WA (US);
Brett A. Shirley, Bellevue, WA (US);
Laurion Burchall, Seattle, WA (US);
Matthew Gossage, Bellevue, WA (US);
Microsoft Corporation, Redmond, WA (US);
Abstract
A computing system stores a database comprising pages. Each of the pages is the same size. When a page is requested, a block of virtual memory addresses is associated with the page and a set of physical data storage locations is committed to the block of virtual memory addresses. A copy of the page is then stored into the set of physical data storage locations. Physical data storage locations committed to the virtual memory addresses associated with available free space in the copy of the page are deallocated, thereby allowing reuse of these physical data storage locations. A reference to the copy of the page is then returned.