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. 23, 2003
Filed:
May. 01, 2000
Kent A. Dickey, Westford, MA (US);
Debendra Das Sharma, Santa Clara, CA (US);
Hewlett-Packard Development Company, LP., Houston, TX (US);
Abstract
An I/O mapping within a system memory of a computing system assigns a fixed address to each I/O device and I/O bridge in a larger address region of the system than the number of address bits of the I/O devices and/or the I/O bridges would allow. This fixed address assignment eliminates problems associated with fragmentation of I/O memory space of a conventional variable address assignment when I/O devices and/or I/O bridges are replaced on-line, i.e., hot-swapped. The I/O mapping utilizes a greater number of address bits than the address bits available from I/O devices to assign a much larger address space to each device by translating the larger number of bits address from the system to the smaller number of bits address of the I/O devices.