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出典:『Wikipedia』 (2011/02/03 11:46 UTC 版)

英語による解説

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SiRF Technology, Inc. was pioneer in the commercial use of GPS for consumer applications, the company was founded in 1995 and has its headquarters in San Jose, California. The company was acquired by CSR plc in 2009. SiRF manufactures a range of patented GPS chipsets and software for consumer navigation devices and systems. The chips are based on ARM controllers integrated with low-noise radio receivers to decode GPS signals at very low signal levels (typically -160dBm). SiRF chips also support SBAS to allow for differentially corrected positions.