ID-CoBIT: a battery-less information terminal with data upload capability

This paper presents an ID-CoBIT terminal that can drive an infrared ID tag with no plug-in power source. It also describes an ID sensor system for the terminal. We have been developing the CoBIT (compact battery-less information terminal) system. It can provide information support to users based on their locations and orientations. CoBIT is an ultracompact, low cost information terminal that can operate without batteries because it utilizes the energy from the information carrier and the user. However, CoBIT provides personal information support with difficulty because it lacks the capability to transmit a terminal ID from a distance of several meters. This paper proposes a battery-less infrared ID tag driving method that extends CoBIT naturally. Experiment results of a prototype system demonstrate the feasibility of ID-CeBIT.