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:
Jun. 30, 1987
Filed:
Aug. 17, 1984
Applicant:
Inventors:
Martin Freeman, Palo Alto, CA (US);
Cecil H Kaplinsky, Palo Alto, CA (US);
Assignee:
Signetics, Sunnyvale, CA (US);
Attorney:
Primary Examiner:
Assistant Examiner:
Int. Cl.
CPC ...
G06F / ; G06F / ;
U.S. Cl.
CPC ...
364200 ;
Abstract
In a virtual memory system, a guarded region allows access to protected code and data without intervention from a processor's operating system by redefining regions of an address space with reference to gates indicating points of entry for those regions. A non-hierarchial access path in the form of a tree-like structure permits a process to access resources and data while controlling access thereto and return therefrom.
Freeman, Martin. (1987). Guarded regions for controlling memory access (U.S. Patent No. 4677546). U.S. Patent and Trademark Office. https://idiyas.com/patent/badge/4677546
Data source: USPTO (United States Patent and Trademark Office) public patent records. Weekly synchronization. How IDiyas builds this profile