Design and implementation of a four-quadrant and voice interaction user interface of a smartphone for the visually impaired users

摘要

This paper presents a design of a four-quadrant and a voice interaction user interface for the visually impaired (VI) by using a smartphone. This design provides a simplified interface, big buttons, voice feedback, and some simplified functions. Moreover, it is suitable for those people who are visually impaired. This design also includes a telephone, a voice message, an emergency button, and an emergency shaking function.