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. 28, 2009
Filed:
Feb. 27, 2006
Applicant:
Joseph Soetemans, Carp, CA;
Inventor:
Joseph Soetemans, Carp, CA;
Assignee:
Alcatel Lucent, Paris, FR;
Attorney:
Primary Examiner:
Int. Cl.
CPC ...
G06F 11/00 (2006.01); G06F 13/00 (2006.01); G06F 13/28 (2006.01); G06F 7/02 (2006.01); G11C 29/00 (2006.01);
U.S. Cl.
CPC ...
Abstract
A method for testing an internal bus of a random access memory ('RAM') device, the RAM device having an internal cache coupled to a memory array by the internal bus, the method comprising: writing a value to an address in the RAM device, the value being stored in the internal cache, the value corresponding to at least one line of an external bus; writing a number of additional values to addresses in the RAM device other than the address to push the value from the internal cache into the memory array; reading a value from the address; and, determining whether the internal bus is faulty by comparing the value written to the value read.