Qnx Software Systems Limited

Qnx Software Systems Gmbh & Co. Kg

Brian Edmond

Peter H Van Der Veen

Brian John Stecher

David Donohoe

Garry Turcotte

Sheridan Ethier

A system for compositing images using a multilayer graphics controller includes first and second applications. The first application defines masked display regions to a layer of the multilayer graphics controller using masking criterion. The second application provides an image to a further layer of the multilayer graphics controller for display in the masked region. The image may be a still image, streaming video, Internet image, or any other image type.

System compositing images from multiple applications

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.

Method for transitioning control of a peripheral device from a first device driver to a second device driver during operating system initialization

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Stittsville, Canada

Brian Edmond