Marie Van Brittan Brown was the inventor f the first home security system. She is also credited with the invention of the first closed circuit television. Brown was born in Queens, New York, on October 22, 1922, and resided there until her death on February 2, 1999, at age seventy-six.

The patent for the invention was filed in 1966, and it later influenced modern home security systems that are still used today. Brown’s invention was inspired by the security risk that her home faced in the neighborhood where she lived. Marie Brown worked as a nurse and her husband, Albert Brown, worked as an electronics technician. Their work hours were not the standard nine-to-five, and the crime rate in their Queens, New York City neighborhood was very high. Even when the police were contacted in the event of an emergency, the response time tended to be slow. As a result, Brown looked for ways to increase her level of personal security. She needed to create a system that would allow her to know who was at her home and contact relevant authorities as quickly as possible.

Brown’s security system was the basis for the two-way communication and surveillance features of modern security. Her original invention was comprised of peepholes, a camera, monitors, and a two-way microphone. The final element was an alarm button that could be pressed to contact the police immediately.

Three peepholes were placed on the front door at different height levels. The top one was for tall persons, the bottom one was for children, and the middle one was for anyone of average height. At the opposite side of the door a camera was attached with the ability to slide up and down to allow the person to see through each peephole. The camera picked up images that would reflect on the monitor via a wireless system. The monitor could be placed in any part of the house to allow you to see who was at the door.

There was also a voice component to enable Brown to speak to the person outside. If the person was perceived to be an intruder, the police would be notified with the push of a button. If the person was a welcome or expected visitor, the door could be unlocked via remote control.

Marie and Albert Brown filed for a patent on August 1, 1966, under the title, ”Home Security System Utilizing Television Surveillance.“ Their application was approved on December 2, 1969. Brown’s invention gained her well-deserved recognition, including an award from the National Scientists Committee (no year for the award can be identified) and an interview with The New York Times on December 6, 1969.

Her invention is still used by small businesses, small offices, single-family homes, and multi-unit dwellings such as apartments and condominiums. The Browns’ patent was later referenced by thirteen other inventors including some as recently as 2013.

Source: BlackPast.org