Years ago, Americans might have thought it preposterous to pay for a home security system to thwart break-ins. Yet, that’s just the need Marie Van Brittan Brown and her husband, Albert, inventors of a home surveillance device, foresaw. Brown’s closed circuit television security system was patented in 1969. It was built with four peep holes, a sliding camera and remote control capabilities. The device would serve as a prototype for future, more advanced home security systems.