Garmin to use New Chipset
STMicroelectronics announced it has launched volume production of its Teseo GPS engine designed for use in certain Garmin Portable Navigation Devices (PNDs) and handheld GPS receivers. Garmin has been looking to places other than SiRF to fulfill their GPS chipset needs for a while now, and while people may think that there is no replacement for the SiRF star III, these chipsets have to be "high sensitivity" to compete these days. So, we won't be taking a step back to the old days of losing a signal while a leaf blows by.
"We are proud to announce that our state-of-the-art GPS technology has been selected for Garmin's new range of portable and handheld devices," said Domenico Rossi, General Manager of ST's Car Radio and Multimedia Division. "ST is one of the few players in this market that can offer high-performance and cost-effective GPS solutions, based on robust silicon technology, experience in the automotive market, and know-how developed in collaboration with leading navigation manufacturers."
ST's Teseo platform is a turn-key solution that combines reliability and cost-effectiveness with enhanced performance and extended functionality. Superior tracking sensitivity is vital for Portable Navigation Devices
that have the antenna inside and their satellite visibility is further deteriorated by the "shield effect" of the car front window. The integration of ST's newest GPS solution improves tracking in poor satellite visibility conditions and shortens GPS signal acquisition times.
ST Teseo's TTFF (Time To First Fix) values, the time it takes a GPS receiver to find satellites, rank among the fastest in the industry. A "warm start" -- the acquisition of accurate time, satellite positioning and velocity (ephemeris) data that have been lost during the switch-off -- takes less than 34 seconds.
ST's new GPS chipsets support satellite-based augmentation systems such as WAAS (Wide Area Augmentation System) and EGNOS (European Geostationary Navigation Overlay Service) that provide additional accuracy and reliability. Teseo's GPS accuracy expressed in circular error probability (the radius of a circle that represents a 50% probability of a position lying in that circle) is as low as 2 meters. ST's Teseo devices are ready for compliance with Galileo, the upcoming European navigation system complementary to GPS.
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Posted by Scott Martin at August 23, 2007 6:34 AM