SiRF Technology Holdings Inc. has released SiRFInstantFixII, an autonomous version of its original SiRFInstantFix technology that is designed to significantly improve the start-up times of portable navigation devices (PNDs) and other mobile navigation devices without needing any network connectivity for assistance or updates. Available now for both SiRFstarIII GPS receivers and SiRFatlas and SiRFtitan multifunction SoC navigation processors, 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.
SiRFInstantFixII can reduce warm starts, the typical PND start-up mode, from over half a minute to as little as five seconds. SiRFInstantFixII does this while demonstrating excellent positional accuracy, an important attribute for navigation devices.
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.
