Synchronous gestures for multiple persons and computers
Proceedings of the 16th annual ACM symposium on User interface software and technology
Point&Connect: intention-based device pairing for mobile phone users
Proceedings of the 7th international conference on Mobile systems, applications, and services
SoundWave: using the doppler effect to sense gestures
Proceedings of the SIGCHI Conference on Human Factors in Computing Systems
PICOntrol: using a handheld projector for direct control of physical devices through visible light
Proceedings of the 25th annual ACM symposium on User interface software and technology
Proceedings of International Conference on Advances in Mobile Computing & Multimedia
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Mobile and embedded electronics are pervasive in today's environment. As such, it is necessary to have a natural and intuitive way for users to indicate the intent to connect to these devices from a distance. We present DopLink, an ultrasonic-based device selection approach. It utilizes the already embedded audio hardware in smart devices to determine if a particular device is being pointed at by another device (i.e., the user waves their mobile phone at a target in a pointing motion). We evaluate the accuracy of DopLink in a controlled user study, showing that, within 3 meters, it has an average accuracy of 95% for device selection and 97% for finding relative device position. Finally, we show three applications of DopLink: rapid device pairing, home automation, and multi-display synchronization.