@inproceedings{471f09496868406e91b126d5fd6aec46,
title = "Ultra-tangibles: creating movable tangible objects on interactive tables",
abstract = "Tangible objects placed on interactive surfaces allow users to employ a physical object to manipulate digital content. However, creating the reverse effect - having digital content manipulate a tangible object placed on the surface - is a more challenging task. We present a new approach to this problem, using ultrasound-based air pressure waves to move multiple tangible objects, independently, around an interactive surface. We describe the technical background, design, implementation, and test cases for such a system. We conclude by discussing practical uses of our system, Ultra-Tangibles, in the creation of new tangible user interfaces.",
author = "Mark Marshall and Thomas Carter and Jason Alexander and Sriram Subramanian",
year = "2012",
doi = "10.1145/2208276.2208370",
language = "English",
isbn = "978-1-4503-1015-4",
series = "CHI '12",
publisher = "Association for Computing Machinery",
pages = "2185--2188",
booktitle = "CHI '12 Proceedings of the 2012 ACM annual conference on Human Factors in Computing Systems",
address = "USA United States",
}