GPS-power location platform provider SiRF Technology Holdings, Inc. has unveiled an autonomous version of its original SiRFInstantFix technology that is designed to improve the start-up times of portable navigation devices (PNDs) and other mobile navigation devices without needing any network connectivity for assistance or updates. Labeled SiRFInstantFixII , it is available for both SiRFstarIII GPS receivers and SiRFatlas and SiRFtitan multifunction SoC navigation processors. According to the supplier, SiRFInstantFixII achieves GPS start-ups in as little as five seconds, so that mainstream consumers can begin navigating as soon as they're ready to drive.

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According to SiRF, SiRFInstantFixII accomplishes this using sophisticated, patent-pending algorithms that enable the PND to model the behavior of visible GPS satellites during the day and predict their position in the sky for up to three days in the future. SiRFInstantFixII continuously refines its calculations based on the latest data it receives from the satellites being tracked every time the PND is used. It performs these calculations completely autonomously, without ever needing updates of any kind from a network.

SiRFInstantFixII is available now and works with all SiRF multifunction SoC navigation processors and SiRFstarIII-based products.
www.sirf.com