$QCOM Will Introduce Ultrasound Transmitters to Smartphones and Tablets

“Mobile chipmaker Qualcomm has a track record of pushing new capabilities into its chips faster than its competitors in a bid to carve out a bigger chunk of the market. Last year, for instance, its LTE Snapdragon processor helped it to take a 48 per cent revenue share in H1 (Strategy Analytics‘ figure), helping to drive more LTE handsets into the market which in turn accelerated the rate of 4G adoption.

The company made an interesting acquisition last November, buying some of the assets of an Israeli company called EPOS which makes digital ultrasound technology. Ultrasound may seem an odd technology to push into consumer electronics but Qualcomm clearly sees it as another differentiator for its chips, thanks to its potential to offer some novel additions to the user interface space — both for stylus-based inputs and even touch-less interfaces like gestures.

Discussing Qualcomm’s interest in ultrasound at the Mobile World Congress tradeshow in Barcelona, Raj Talluri, SVP of Product Management, explained that to put the technology to work in mobile devices an ultrasound transmitter could be located in a stylus, with microphones sited on the mobile device that can then detect the position of the pen.

Samsung has already included a capacitive stylus with its Galaxy Note phablet but Talluri said an ultrasound-based stylus would extend the capabilities — allowing a stylus to be used off-screen, say on the table top next to where your phone is resting, and still have its input detected.

“It’s is better [than a capacitive stylus] in some key different ways which we’re working on getting to market – for example you could write here [on the table next to the phone] and it will still detect where it is. So let’s say you have a [paper] notepad… and you have a phone [nearby on the table] and you can start writing on your notepad it will actually also be transcribed into text on the phone because what happens is the ultrasound can be used to calibrate any reasonable distance,” he told TechCrunch.,,,”

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