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:
Apr. 06, 1982
Filed:
Jan. 08, 1980
Robert B Johnson, Billerica, MA (US);
Chester M Nibby, Jr, Peabody, MA (US);
Dana Moore, Dover, MA (US);
Honeywell Information Systems Inc., Waltham, MA (US);
Abstract
A memory subsystem which couples to a multiword bus for processing memory requests received therefrom includes at least a pair of independently addressable dynamic memory module units. Each memory unit includes a number of rows of random access memory (RAM) chips. The subsystem receives as part of each memory request an address, the least significant portion of which selects the row of chips to be accessed within one of the pair of memory units. Address decode circuits include gating circuits which couple to both module units. The gating circuits are interconnected so that the decoding of the least significant address bits results in the generation of a pair of row address strobe signals. These signals enable simultaneously the rows of RAM chips for access within both module units for read out of information to a multiword bus eliminating any delay in address incrementing.