March 5, 2012 – CSR announced today that it demonstrated the high accuracy of indoor map services (indoor navigation) through its SiRFstarV™ architecture and SiRFusion™ location platform at the Mobile World Congress 2012 in Barcelona, Spain.

Using a pre-fabricated SiRFstarV device and a smartphone equipped with STMicroelectronics MEMS sensors, CSR demonstrated to visitors firsthand how the self-learning SiRFusion platform fuses various radio signals, sensor input signals, and their respective location data to provide stable and accurate indoor location information.

Fabio Pasolini, Head of Motion MEMS at STMicroelectronics, said, “After we first demonstrated how to combine MEMS sensors with CSR’s location technology and platform at the Consumer Electronics Show (CES 2012) last January, several key customers expressed great interest and inquired about the combined solution. We are pleased to participate in a live demonstration of indoor location and navigation solutions being used in location-based applications, for which demand has recently surged.”

The STMicroelectronics MEMS sensor module used in this demonstration is a multi-angle sensor inertial measurement device. The MEMS sensor module is a device with 10 degrees of freedom that includes three central axis sensings, such as line, tilt, and magnetic motion pressure measurements, and is used to measure elevation above sea level, altitude, and the height of high-rise buildings.

Kanwar Chadha, CMO of CSR and founder of SiRF, emphasized, “The demo presented provides highly reliable Pedestrian Dead Reckoning enabled through collaboration with STMicroelectronics’ MEMS sensors. This is a key factor that allows us to obtain accurate location information for requested positions in environments such as indoor locations or urban canyons, even when GNSS signals are unavailable, thanks to the SiRFusion platform.”

He also stated, “This demonstration provided customers with a brief experience of future indoor location and navigation, while showcasing our vision to strengthen the provision of various location-based services and applications encompassing both indoor and outdoor environments for key customers.”

CSR's SiRFstarV architecture attempted a new approach to location and navigation. Instead of relying entirely on GPS, SiRFstarV collects real-time information from GPS, Galileo (European satellite navigation system), GLONASS (Russian satellite navigation system), Compass satellites (Chinese satellite navigation system), various radio systems such as Wi-Fi and cellular, and multiple MEMS sensors such as accelerometers, rotary compasses, and compasses.

Based on the real-time information gathered in this way, SiRFstarV uses the SiRFusion platform to combine estimated location data with maps, cellular base station Wi-Fi access point location data, and cloud-based support information.

SiRFusion Indoor Navigation, a mobile handset equipped with SiRFstarV and STMicroelectronics MEMS sensors, includes a large number of indoor applications provided by Whatamap.com and VisioGlobe®. These applications provide indoor location, search, and walking directions using high-quality indoor maps from Navteq® and Micello.