Expanding the Vocabulary of Multitouch Input using Magnetic Fingerprints

摘要: We present magnetic fingerprints; an input technique for mobile touchscreen devices that uses a small magnet attached to user's fingernail in order differentiate between normal touch and touch. The polarity of the can be used create different fingerprints where this takes advantage rich vocabulary offered by use multitouch input. User studies investigate accuracy fingerprint recognition relation size, number used; size touchscreen. Studies found our limited using up two non-simultaneously, while achieving high classification (95%) but it nearly triples distinguishable multi events. Potential useful applications are presented.