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:
Oct. 05, 1999
Filed:
Mar. 03, 1997
Applicant:
Inventors:
Louis Bennie Capps, Jr, Round Rock, TX (US);
Thoi Nguyen, Austin, TX (US);
Assignee:
International Business Machines Corporation, Armonk, NY (US);
Attorney:
Primary Examiner:
Int. Cl.
CPC ...
G06F / ; H03M / ;
U.S. Cl.
CPC ...
714763 ; 714800 ; 714752 ;
Abstract
A method and apparatus for providing a memory system having error checking and correction (ECC) capability, and parity error detection capability on the same memory card, and user selection of either capability using the same type of memory modules. A memory controller having programmable configuration registers is provide for user selection of either ECC or parity capability. Eight-byte Dual in-line Memory Modules are used to provide 64-bit data which allows the memory controller to use eight extra bits for both ECC and parity capability.