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A comment on FingerIO: Using Active Sonar for Fine-Grained Finger Tracking. Parent comment

Re:FingerIO: Using Active Sonar for Fine-Grained Finger Trac... by gr3yh47 on Friday March 18, 2016 @08:28AM (#11311283)
it's obviously pretty different when you don't have to be touching the phone to interact with it
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Re:FingerIO: Using Active Sonar for Fine-Grained Finger Trac... by njharman on Friday March 18, 2016 @08:55AM (#11311427)
Not when it's a few inches away. It's less distance than voice interaction.
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Re:FingerIO: Using Active Sonar for Fine-Grained Finger Trac... by lucb1e on Friday March 18, 2016 @10:34AM (#11312028)
A lot of people are a few inches from my pocket every day. And I can easily imagine software listening for such sonars and sending back fake responses. I think debarshri has a valid point.
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Re:FingerIO: Using Active Sonar for Fine-Grained Finger Trac... by njharman on Friday March 18, 2016 @02:43PM (#11313908)
> A lot of people are a few inches from my pocket every day.

Really? And your phone is on? With the screen visible for them to see what they are interacting with. And as they are fumbling around in your personal space inches from your hand or pocket, no one notices.

Get real! If true you should be more worried about pickpockets than some random gestures.

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