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. 03, 1985
Filed:
Jul. 20, 1983
Applicant:
Inventors:
Glen R Kregness, Minnetonka, MN (US);
Peter B Criswell, Bethel, MN (US);
Clarence W DeKarske, St. Paul Park, MN (US);
Assignee:
Sperry Corporation, New York, NY (US);
Primary Examiner:
Int. Cl.
CPC ...
G06F / ;
U.S. Cl.
CPC ...
371 49 ; 364738 ; 364900 ;
Abstract
A 72-bit shift matrix, suitable for LSI implementation in gate arrays, is disclosed. Eight byte shifters and eight bit shifters are combined to produce shifts of 0-72 places in either direction, circularly or open ended with zero or sign fill. A means is additionally provided to regenerate original source parity from the matrix outputs for use in thru checking. A single 9-bit parity generator is all that is required to check the correctness of the matrix.