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:
Jan. 14, 1997
Filed:
Oct. 12, 1995
Brian V Belmont, Houston, TX (US);
Compaq Computer Corporation, Houston, TX (US);
Abstract
The system bus in a computer system includes a number of slots for individual expansion cards. Generally, input/output and memory operations to those expansion cards enable all the cards when one addressing range is used, but only enable one of the cards when another addressing range is used. According to the invention, any particular card can be disabled, or any combination of cards can be disabled, no matter which address range is used for the input/output or memory operation. This allows each card to be individually checked at start up to determine its I/O address and memory range without the possibility of another card responding, even if that other card is configured to respond to the same addresses.