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:
Nov. 16, 2004
Filed:
Jan. 04, 2002
Applicant:
Inventors:
Theodore F. Emerson, Houston, TX (US);
Robert L. Noonan, Crystal Lake, IL (US);
Don A. Dykes, Houston, TX (US);
Assignee:
Hewlett-Packard Development Company, L.P., Houston, TX (US);
Attorney:
Primary Examiner:
Int. Cl.
CPC ...
G06F 1/314 ;
U.S. Cl.
CPC ...
G06F 1/314 ;
Abstract
Certain accesses by a processor to a video graphics controller may cause concurrent accesses by a remote management controller to cause the video graphics controller to lock up. To detect potential lock-up events, the remote management controller snoops the bus to determine whether the processor is performing a type of access that could lead to a potential lock-up condition. If so, the remote management controller ceases accessing the bus until the video graphics controller is in an available state.