Space Apps Challenge 2017

The project is about enabling different users to use the same screen simultaneously. The project depends on Nyquist sampling theorem, that is in order to reconstruct the signal from a samples we need that the minimum sampling frequency to be at least twice the bandwidth of the signal.

The project consist of three parts that is: video processing, the glasses, and electronics ship. The video processing's function is to redistribute the frames of different channels such that it satisfies the Nyquist sampling theorem. For example, for two channels, we need to divide single frame into four parts, such that the first and third parts will be allocated for channel 1, and the second and fourth parts are allocated for channel 2. Nevertheless, the channels can go beyond 2 channels given that sampling theorem is satisfied. In addition, the naked eye will watch a white screen by removing the ploarizer from the screen and installing a polarizer on the glasses. The second part is the glasses which functions as the sampler such that, the lens will transparent for the channel to be displayed and opaque for other channels. The technology that will be employed to achieve this function liquid crystals such that it will alternate between transparent and opaque states to show based on the signal of an oscillator that is synchronized with the processed video. The third part is the electronics chip which will be provided with a Bluetooth receiver to synchronize the oscillator with the video and to receive the audio for the desired channel which can be either delivered to an aux jack (3.5 mm) or to earphones directly.