Marie Brown was born in New York. Before its invention, individuals did not use visual techniques for their safety. In 1966, with her husband Albert Brown, she patented the television home security circuit. The system was made up of 4 target points towards which a camera could move. The filmed images were broadcast on a monitor screen. His system has spread throughout the world. It is now installed in many homes. Now, whenever you're filmed in a home, smile at Marie Brown.