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:
Dec. 02, 2008
Filed:
Jun. 03, 2005
Peter Van Der Veen, Kanata, CA;
Sheridan Ethier, Kanata, CA;
Brian Stecher, Kanata, CA;
Brian Edmond, Stittsville, CA;
Peter van der Veen, Kanata, CA;
Sheridan Ethier, Kanata, CA;
Brian Stecher, Kanata, CA;
Brian Edmond, Stittsville, CA;
QNX Software Systems GmbH & Co. KG, Karlsbad, DE;
Abstract
A system for meeting demanding boot time requirements, such as those timing requirement mandated by vehicle telematics systems, is described. Current computer systems use expensive hardware like coprocessors to service requests, such as input/output requests, that have timing requirements which are less than the time required to load the operating system into memory. Instead, a mini-driver may be initialized early in the boot process before the operating system is loaded, to service these requests. For example, the mini-driver may buffer incoming data, and/or reply to incoming messages. After the operating system has loaded, a second device driver may be initialized, and the mini-driver may be transitioned to the second driver.