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. 30, 2004
Filed:
Apr. 20, 2000
Stephane G. Plante, Kirkland, WA (US);
Microsoft Corporation, Redmond, WA (US);
Abstract
A method and system for selectively enabling wake events (wake general purpose events, or GPEs) in software of a computer system to overcome problems arising when hardware devices fail to clear a wake signal, and as part of handling the event, to re-run control methods that fail to properly execute. The operating system intelligently manages wake events, and also distinguishes between events that are exclusively wake events, exclusively run-time events, and shared wake and run-time events, and handles control method failures. At boot time, the ACPI driver examines system tables provided by firmware to determine which GPEs are associated with wake-up events, either exclusively or shared with run-time events. These wake event associations are tracked, whereby they are managed differently from events received on other hardware register pins. In general, when the operating system receives events, the operating system runs an associated GPE method. If the control method fails, the operating system can re-run the GPE method, after a delay. When the GPE method has completed, the operating system selectively determines whether the event needs to be re-enabled.