CSR's 'SiRFstarIV' GPS Technology Adopted in Samsung Electronics' New Galaxy S II

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CSR announced today that its SiRFstarIV GPS architecture technology has been adopted in Samsung Electronics' latest smartphone, the Galaxy S II, further solidifying its position in the location-based solutions market. Because today's smartphones must incorporate diverse and complex functions, they have an internal environment with significant electronic noise. Samsung Electronics explained the reason for the adoption, stating that the Galaxy S II was able to achieve outstanding GPS performance through SiRFstarIV's unique technology, even amidst this complex internal environment.

“CSR is very pleased that its superior location awareness solution, SiRFstarIV, was adopted for Samsung Electronics’ new flagship product, the Galaxy S II, beating out various competing solutions. This adoption serves as a good example of our continued realization of our vision to provide high-performance crisis awareness solutions to many mobile products in the market through our SiRFstarIV product,” said Ahmet Alpdemir, Vice President of CSR’s Handset Business Unit.

In addition, Dave Huntingford, Director of Product Management for CSR’s Handset Business Unit, explained, “CSR designed the SiRFstarIV architecture to obtain accurate location information even in environments where receiving GPS satellite signals can be hindered due to frequency interference from various nearby components when the GPS function operates inside a smartphone.”

SiRFstarIV implements CSR’s active jammer removal technology along with low-power location recognition technology to detect, track, and actively defend against/block eight factors considered to be interference and jamming within the GPS frequency band, which are direct factors affecting GPS performance. This enables convenient coexistence with noisy components without additional operation. Inside smartphones, not only large LCD screens but also Bluetooth, Wi-Fi, and 3G mobile radios often cause radio interference.

SiRFstarIV GSD4t
The SiRFstarIV GSD4t, embedded at the heart of the Samsung GALAXY S II, is a host-based GPS receiver optimized for smartphones and other consumer mobile products equipped with proprietary, powerful application processors. The core of the SiRFstarIV solution is the ability to consistently provide a “better-than-hot-start” state by eliminating the need for the GPS receiver to remain fully switched on at all times, thereby avoiding the waste of battery power for rapid position corrections. Through the SiRFstarIV architecture, the GSD4t COM