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:
Oct. 27, 1987
Filed:
Jun. 27, 1985
Applicant:
Inventors:
Victor M Morganti, Lincoln, MA (US);
Patrick E Prange, Brookline, MA (US);
Assignee:
Honeywell Information Systems Inc., Waltham, MA (US);
Attorneys:
Primary Examiner:
Assistant Examiner:
Int. Cl.
CPC ...
G06F / ;
U.S. Cl.
CPC ...
364200 ;
Abstract
In combination with a multiprocessing/multiprogramming computer system having a ring protection mechanism for protecting computer programs from unauthorized access, a new call instruction architecture is implemented partly in firmware and partly in hardware. Also, a new stack mechanism stores hardware managed control information in a control frame and software controlled data in a data frame.