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:
Aug. 30, 2011
Filed:
Dec. 21, 2009
Michael L. Asher, Green Grove Springs, FL (US);
Charles C. Giddens, Conyers, GA (US);
Harold Jeffrey Stewart, Alpharetta, GA (US);
Michael L. Asher, Green Grove Springs, FL (US);
Charles C. Giddens, Conyers, GA (US);
Harold Jeffrey Stewart, Alpharetta, GA (US);
AT&T Intellectual Property II, LP, Atlanta, GA (US);
Abstract
For each process a stack data structure that includes two stacks, which are joined at their bases, is created. The two stacks include a normal stack, which grows downward, and an inverse stack, which grows upward. Items on the stack data structure are segregated into protected and unprotected classes. Protected items include frame pointers and return addresses, which are stored on the normal stack. Unprotected items are function parameters and local variables. The unprotected items are stored on the inverse stack.