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Fujitsu and Global Locate Inc. jointly introduced a fast, low-power receiver that lets wireless phones receive GPS satellite signals indoors. Designed to add location capabilities to wireless products, the GL-16000 GPS Baseband Processor has 500 times more hardware correlators than a typical GPS receiver, providing fast start-up, with a time-to-first-fix of 250 milliseconds. The chip requires less than 0.0005 percent of battery charge per fix, far lower than competing technologies. The processor is capable of acquiring satellite signals below - 158 dBm, enabling GPS signal reception indoors.

The IndoorGPS chip set is highly integrated for minimum size and cost. The wireless system CPU interacts with the chip set through a parallel data bus to the GL-16000, and a serial bus to the GL-HSRF. All of the computationally demanding GPS processing occurs in the GL-16000; thus CPU loading and memory requirements of the software are minimal.
Fujitsu Microelectronics America, Inc.
http://www.fujitsu.com/us/services/edevices/microelectronics/