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:
Sep. 18, 2001
Filed:
May. 22, 1998
Applicant:
Inventors:
Thomas A. Keaveny, Auburn, CA (US);
Donald M. Cross, Newcastle, CA (US);
Assignee:
Hewlett-Packard Company, Palo Alto, CA (US);
Attorney:
Primary Examiner:
Int. Cl.
CPC ...
G06F 1/300 ;
U.S. Cl.
CPC ...
G06F 1/300 ;
Abstract
A high-performance dual-ported shared memory that interconnects two 32-bit PCI buses with a RAM memory that provides an address space of 64-bit words. The high-performance dual-ported shared memory provides two independent channels for reading from, and writing to, the RAM memory. By interleaving 64-bit read and write operations directed to the RAM memory with 32-bit PCI bus data transfer operations, and by internally buffering data, the high-performance dual-ported shared memory can independently provide data access at PCI data transfer rates to both PCI buses without introducing wait states.