The AirBook: force-free interaction with dynamic text in an assistive reading device

Abstract

We describe a prototype of the AirBook, an assistive reading device that combines dynamic text (especially RSVP, that is, rapid serial visual presentation) with force-free capacitive field sensors to create a simple, easily controlled assistive reading device. This reader is designed to assist people with visual disabilities (like dyslexia, loss of fine motor control or loss of contrast sensitivity) by giving them more control over font size and contrast. It's also for people with upper-body disabilities, lack of fine muscle control, or severe arthritis, all of which can make the reading of standard paper books difficult. The force-free sensor system can be adjusted for large-scale motion or for tiny ranges of movement, and requires no pressure or fiddling with physical objects. The sensors read the proximity of a human limb, and adjust parameters on the text accordingly. For example, the reading device can be controlled with the motion of one finger if necessary, or adjusted to read the motion of an entire arm or leg.