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CHI '95 Proceedings of the SIGCHI Conference on Human Factors in Computing Systems
Field mice: extracting hand geometry from electric field measurements
IBM Systems Journal
“Body coupled FingerRing”: wireless wearable keyboard
Proceedings of the ACM SIGCHI Conference on Human factors in computing systems
Sensing from the basement: a feasibility study of unobtrusive and low-cost home activity recognition
UIST '06 Proceedings of the 19th annual ACM symposium on User interface software and technology
The Gesture Watch: A Wireless Contact-free Gesture based Wrist Interface
ISWC '07 Proceedings of the 2007 11th IEEE International Symposium on Wearable Computers
Pervasive '08 Proceedings of the 6th International Conference on Pervasive Computing
HydroSense: infrastructure-mediated single-point sensing of whole-home water activity
Proceedings of the 11th international conference on Ubiquitous computing
ViridiScope: design and implementation of a fine grained power monitoring system for homes
Proceedings of the 11th international conference on Ubiquitous computing
Enabling always-available input with muscle-computer interfaces
Proceedings of the 22nd annual ACM symposium on User interface software and technology
Skinput: appropriating the body as an input surface
Proceedings of the SIGCHI Conference on Human Factors in Computing Systems
UbiComp '07 Proceedings of the 9th international conference on Ubiquitous computing
Proceedings of the 12th ACM international conference on Ubiquitous computing
Your noise is my command: sensing gestures using the body as an antenna
Proceedings of the SIGCHI Conference on Human Factors in Computing Systems
Bathroom activity monitoring based on sound
PERVASIVE'05 Proceedings of the Third international conference on Pervasive Computing
FLIGHT: clock calibration using fluorescent lighting
Proceedings of the 18th annual international conference on Mobile computing and networking
uTouch: sensing touch gestures on unmodified LCDs
Proceedings of the SIGCHI Conference on Human Factors in Computing Systems
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In this paper, we describe LightWave, a sensing approach that turns ordinary compact fluorescent light (CFL) bulbs into sensors of human proximity. Unmodified CFL bulbs are shown to be sensitive proximity transducers when they are illuminated. This approach utilizes predictable variations in electromagnetic noise resulting from the change in impedance due to the proximity of a human body to the bulb. The electromagnetic noise can be sensed from any point along a home's electrical wiring. This allows users to perform gestures near any CFL lighting fixture, even when multiple lamps are operational. Gestures can be sensed using a single interface device plugged into any electrical outlet. We experimentally show that we can reliably detect hover gestures (waving a hand close to a lamp), touches on lampshades, and touches on the glass part of the bulb itself. Additionally, we show that touches anywhere along the body of a metal lamp can be detected. These basic detectable signals can then be combined to form complex gesture sequences for a variety of applications. We also show that CFLs can function as more general-purpose sensors for distributed human motion detection and ambient temperature sensing.