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:
Jun. 30, 1992
Filed:
Feb. 13, 1990
Applicant:
Inventor:
Michael Raynham, Los Gatos, CA (US);
Assignee:
Hewlett-Packard Company, Palo Alto, CA (US);
Attorneys:
Primary Examiner:
Int. Cl.
CPC ...
G06F / ; G11C / ;
U.S. Cl.
CPC ...
371 373 ; 365200 ; 3652385 ; 371 401 ; 371 402 ;
Abstract
Error detection or correction is provided on the same chip as DRAM memory. Because data and error correction bits need not travel on an external bus, error detection/correction can be conducted on a larger number of bits than the width of the data bus. When using memories which provide for access to a row of memory, such as static-column or fast-page mode memories, error correction is conducted on an entire row of memory during one error correction cycle. Following operations of the correction cycle, the data within a row of memory can be accessed independently of the EC circuitry.