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. 29, 1994
Filed:
Aug. 26, 1992
Applicant:
Inventor:
Russell W Mason, Ft. Collins, CO (US);
Assignee:
Hewlett-Packard Company, Palo Alto, CA (US);
Attorney:
Primary Examiner:
Int. Cl.
CPC ...
G11C / ;
U.S. Cl.
CPC ...
36523006 ; 36518904 ; 365191 ; 326106 ;
Abstract
An address decoder having a predecoder which predecodes n pairs of true/complement address inputs into 2n memory select lines. By predecoding the address inputs in this manner, the number of pull-down FETs in the pull-down string of the NAND decoder may be minimized so as to provide area and speed advantages. Predecode is provided in a preferred embodiment by logically ANDing the respective true/complement addresses in address pairs to provide a unique predecode value to the decoder. In order to minimize the number of input lines, a decoder only receives inputs over the predecode lines having predecoded addresses unique to that decoder.