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:
Nov. 01, 1988
Filed:
May. 14, 1987
Applicant:
Inventors:
Jesse B Lipcon, Harvard, MA (US);
Barry A Maskas, Marlboro, MA (US);
David K Morgan, Hopkinton, MA (US);
Assignee:
Digital Equipment Corporation, Maynard, MA (US);
Primary Examiner:
Int. Cl.
CPC ...
G01R / ;
U.S. Cl.
CPC ...
371 21 ;
Abstract
A self-testing memory simultaneously writes test patterns into the memory banks of the memory, simultaneously compares the contents of one of the memory banks with the contents of the other of the banks, and records errors when the contents of the one memory bank differ from the contents of the other banks.