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:
Dec. 28, 2004
Filed:
Jan. 02, 2003
Ikuo Shinozaki, Kanagawa, JP;
Sony Corporation, Tokyo, JP;
Abstract
The present invention provides a memory protective administrative apparatus for a computer for protecting memory access between programs. A virtual address administrative apparatus constituting the first mentioned apparatus receives size of a memory region prepared, and assigns a virtual address region larger than the size. At this time, a top address of a region smaller than size S covered by 1-entry of the minimum segment table performs virtual address assigning so as to be aligned to the size S . In a region of size larger than the S , hierarchies in which the size can be covered by 1-entry are searched from bottom, and likewise, a virtual address aligned is assigned. A page table is variable in length and has a page entry for a size part. The page table is linked to entry corresponding to the top virtual address of a segment table of a hierarchy used for alignment.
Data source: USPTO (United States Patent and Trademark Office) public patent records. Weekly synchronization. How IDiyas builds this profile