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. 22, 1992
Filed:
Sep. 14, 1990
Applicant:
Inventors:
Richard C Zelley, Chelmsford, MA (US);
Elmer W Carroll, Billerica, MA (US);
Assignee:
Bull HN Information Systems Inc., Billerica, MA (US);
Attorneys:
Primary Examiner:
Int. Cl.
CPC ...
G06F / ;
U.S. Cl.
CPC ...
371 161 ; 3642671 ; 3642674 ; 3642802 ; 364D / ; 395575 ;
Abstract
A method for performing initial testing of a system wherein, in response to power on of the system, the control store of a central subsystem is loaded with a testing microinstruction program for internal testing of the central subsystem and the testing program executed. Upon completion of the testing program, the central subsystem operating programs are loaded into the control store, and control of the data processing system is transferred to the system programs.