Orthogonal Frequency Division Multiplexing tagged posts

New Sonar Technology: interact with Mobile and Smartwatch by writing on Surface or Air

FingerIO allows you to interact with mobile devices by writing or gesturing on any nearby surface by turning a smartphone or smartwatch into an active sonar device. Credit: Dennis Wise, University of Washington

FingerIO allows you to interact with mobile devices by writing or gesturing on any nearby surface by turning a smartphone or smartwatch into an active sonar device. Credit: Dennis Wise, University of Washington

As mobile and wearable devices such as smartwatches grow smaller, it gets tougher for people to interact with screens the size of a matchbook. That could change with a new tech developed by Un of Washington computer scientists and electrical engineers called FingerIO. It tracks fine-grained finger movements by turning a smartphone or smartwatch into an active sonar system using the device’s own microphones and speakers.

Because sound waves travel through fabric and do not require a line of sight, users can even interact with a phone inside a front pocket or a smartwatch hidden under...

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