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. 11, 1988
Filed:
Mar. 30, 1987
Applicant:
Inventors:
Thomas J Fitzgerald, Cambridge, MA (US);
Albert T McLaughlin, Hudson, NH (US);
Assignee:
Honeywell Bull, Inc., Minneapolis, MN (US);
Primary Examiner:
Int. Cl.
CPC ...
G06F / ; G01R / ;
U.S. Cl.
CPC ...
364900 ; 371 15 ;
Abstract
A method and apparatus for determining if matching units of an electronic system or a subsystem are assembled includes a single scratchpad memory which is addressed by the units on alternate cycles. A microprogram stored in one unit operates in synchronism with a microprogram in the other unit to write into and to test the contents of a location in scratchpad memory to determine if the two units would be operational with each other during normal operation.