Marie Van Brittan Brown
(1922-1999)
In 1966, Brown, along with the assistance of her husband, invented a security system which consisted of four peepholes, a sliding camera, television monitors, and two-way microphones.
These items created a closed-circuit television system for surveillance also known as CCTV. With multiple peepholes, the sliding camera was able to capture images of people who were different heights.
The two-way microphones allowed
Brown to communicate with the person outside. She also had a remote that
would allow her to unlock the door at a safer distance. Lastly, she
could press an emergency button that would send an alarm to police or
security.
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