A video magnification system that utilizes a camera to project an image onto a display screen or monitor. Properties that can be adjusted include contrast, inverse video display, brightness, color, and magnification level.
Abbreviated CCTV. A television system, usually hard-wired, used for proprietary purposes and not for public or general broadcast. Often used in security applications in conjunction with access control, general surveillance, motion detection, or alarm assessment.
Closed circuit televisions (CCTV) are a video magnification system consisting of a video screen interfaced with a video camera. This technology produces major advances for people with low vision. The stand-mounted CCTVs can be configured with either television receivers, video monitors, or computer monitors. The CCTV system provides high contrast, inverse video display, gray scale, and control of contrast level and brightness. Examples of product names: Telesensory, SmartView.
Traditionally, a private television network broadcasted internally within an organization. Modern narrowcasting solutions work over the Internet, deploying custom video and messaging anywhere in the world.
A transmission system that distributes television programs, live or tape, to a limited network connected by cable. The network may consist of one institution or several. The telecast cannot be received by other television sets outside the selected network.