Apple buys Silicon Valley startup WiFiSlam to acquire indoor WiFi geolocation technology
March 26, 2013 // Julien Happich
Apple has acquired a Silicon Valley startup, WiFiSlam, which makes mapping applications for smart phones based on the triangulation of WiFi signals. The Wall Street Journal reported Apple may have paid around $20 million for the company.
WiFiSlam develops technology that provides indoor tracking and similar services. Big tech companies such as Apple and Google have been racing to provide more and better map applications for users. Google's application, Google Maps, is widely accessed on Google's Android platform and rival Apple's rival iOS platform.
The startup uses a combination of methods to get better indoor locations, such as using WiFi fingerprinting, or measuring the strength of the signal to get an idea of what the materials and construction of a particular building do to WiFi signals. With enough scans, users can get an accurate profile of a building that can be then be used to make a map. Slam stands for Simultaneous Localization and Mapping, at the core of WiFiSlam's way of gathering location and mapping information, without recording any data at all. WiFiSlam records 'trajectories’ from the phone’s sensors including the accelerometers, gyroscopes and magnetometers and combine them with WiFi signal strength data.
By aggregating the data of many paths walked by various users, a big database of paths and maps can be built for each building equipped with WiFi hotspots. Pattern recognition and machine learning algorithms are also blended-in to correlate the data gathered by all of the sensors in a device, and associate it with WiFi triangulation. Magnetometers can take magnetic field readings throughout a building, and again, the level of variance and details provided can be used to statistically map indoor locations together with the WiFi signals. All these sensors are already on-board Apple’s iPhone 5 and iPhone 4S. This could turn any iPhone user into a remote anonymous data aggregator, adding precision to future Apple indoor mapping services.All news
RS Components and Allied Electronics connect with Rosenberger for global distribution
October 24, 2014
RS Components (RS) and Allied Electronics, the trading brands of Electrocomponents plc, have signed a global distribution ...
Pixel chip sparks energy-efficient intelligent LED headlamps
Noise cancellation: The sounds of silence in the car
HPLEDs double light output, cut costs by 40 percent
Startup creates virtual cores
Photochemical compounds for tunable OLED devices
October 24, 2014
Spanish researchers have developed new organic compounds characterized by a higher modularity, stability and efficiency, ...
Consumer chips in the car? Experts demand adequate design processes
Murata cheerleaders demonstrate sensors, swarm intelligence
Radon and VOCs detection goes personal
- 5 Best Practices for Designing Flexible Test Stations
- Intelligent PLCs Expand the Internet of Things
- Solutions for Millimeter Wave Wireless Backhaul
- Enter Linduino
InterviewCEO interview: AMS' Laney on driving a sensor-driven business
Kirk Laney, CEO of Austrian mixed-signal chip and sensor company AMS, wants to leverage the opportunity that technology affords to create new markets for sensors and sensor interfaces.
Filter WizardCheck out the Filter Wizard Series of articles by Filter Guru Kendall Castor-Perry which provide invaluable practical Analog Design guidelines.
Linear video channel
READER OFFERRead more
This month, Oscium is giving away three of its iMSO-204L dual analogue iOS oscilloscopes, worth USD400 each. Designed with native Lightning compatibility, the iMSO-204L transforms the iPad, iPhone, and iPod touch into an ultra-portable, two-channel oscilloscope.
Since Apple changed its connector, Oscium has been working to bring native compatibility to its customers. The third generation...MORE INFO AND LAST MONTH' WINNERS...
December 15, 2011 | Texas instruments | 222901974
Unique Ser/Des technology supports encrypted video and audio content with full duplex bi-directional control channel over a single wire interface.