Pixelstream Information Transfer (PXIT) is like color-by-numbers because the pattern and the color palette are known in advance. But instead of picking the colors for artistic reasons, we choose them to reflect the contents of a file we want to send.
A video capture device connects the (yellow) video output from television receiver to the USB port of a computer. It converts video into a sequence of frames and delivers them one-at-a-time to software. Once the software recognizes the computer-generated images it has all the information it needs to reconstruct the file.
Data broadcasting is an effective solution for both the long haul and for the final mile. Satellite television can be used to broadcast data over the entire continent and television white spaces can be used (except in major urban areas) to deliver data to residences.
As files are received they are ingested into a server running on the user’s computer. The server could be accessed by a web browser that also runs on the user’s computer or by nearby devices using WiFi.
Here’s what a visual datacast looks like on TV. And to find out how easy it is to get set up to receive and access information please see “Setting Up and Using Your PXIT Information Appliance.”