page_title: SiRF
hierarchical_section_title: SiRF
caption_attribution_description: English: Typhoon MyGuide 3500 mobile - GPS module - SiRF GSP2e/LP-7451 - SiRFstarIIe/LP Chip Set
context_page_description: SiRF Technology, Inc. was a pioneer in the commercial use of GPS technology for consumer applications. The company was founded in 1995 and was headquartered in San Jose, California. The company was acquired by British firm CSR plc in 2009, who were in turn subsequently acquired by American company Qualcomm on 13 August 2015.
  SiRF manufactured 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. SiRF chips also support SBAS to allow for differentially corrected positions.
context_section_description: SiRF Technology, Inc. was a pioneer in the commercial use of GPS technology for consumer applications. The company was founded in 1995 and was headquartered in San Jose, California. The company was acquired by British firm CSR plc in 2009, who were in turn subsequently acquired by American company Qualcomm on 13 August 2015.
  SiRF manufactured 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.
caption: SiRF Ii chip
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