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:
Feb. 28, 1989
Filed:
Sep. 08, 1986
Applicant:
Inventors:
Dongsung R Kim, Laguna Hills, CA (US);
Reinhard K Kronies, Fountain Valley, CA (US);
Assignee:
Unisys Corporation, Blue Bell, PA (US);
Primary Examiner:
Int. Cl.
CPC ...
G06F / ;
U.S. Cl.
CPC ...
371 51 ;
Abstract
A wide ROM-PROM memory is structured of multiple memory chips in parallel plus an auxiliary parity memory chip to hold parity bits for each corresponding addressable location in each memory chip. Sensing means is provided to check parity of data bits read from each memory location to verify integrity of the read-out.