Projection virtual keyboard using echo sound technique and image processing for mobile phone

The devices are becoming smaller, convenient, & more efficient as the IT field is growing. With the constant growth of products in market of new replace dated counterparts because of their ability to enhance the customer's experience. Bulky computers and laptops are now getting upgraded with less weight and more advanced gadgets and also which will reduce efforts while working on that device. In this paper we will describe about a device which will create a projected virtual keyboard using eco-sound system technique. The virtual keyboard will be complete projection from projector of mobile and it will display keyboard from at least 1 metre distance on any surface. The device will be affordable for a middleclass person and can carry it anywhere. The virtual keyboard has ability to work in lighted rooms with no any damage to human eye and skin from projected rays. Our device will overcome with nearly all consequences and it will be a new out coming development in IT field. The device will be connected with Bluetooth for receiving the distance.