  Many technologies have been developed in recent years to present audiovisual
information in new ways, but developing an information presentation interface
to convey tactile information is still a challenge. We propose a tactile device
using wearable technology that is an all-around pressure presentation system
using pneumatic actuators. Specifically, we develop a system in which a choker
equipped with a pneumatic actuator is worn around the neck, that applies
pressure in any direction to indicate to the user the direction in which to
walk and also when to start and stop walking. In this paper, we describe the
construction of the device, evaluation experiments, our assessment of the
prototype, and future plans for the device.
