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Sounds like you're speaking of multiplexing, a method of putting more than one television signal on the same carrier, by switching from one signal to the next (usually up to eight video feeds) in a round robin style. Since the system operates at a very high frequency and the the video is running at a much lower frequency, it's possible to do this without the television receiver, satellite receiver or cable box showing any indication this is taking place. It's most common on satellite transmissions where it's now possible to send up to eight TV separate digital channel feeds in the space it one took to feed just one analog video feed.
Switched Digital Video
how we use Public switched telephone networks to carry all our digital contents
Digital Video Disc or Digital Versatile Disc
A DVD recorder records video as a digital signal. A CD-ROM in a computer records video as a digital signal.
Analog to digital converters are used to transfer video from a medium to a digital file, for example Camcorders or Cameras with video. One example would be the Canopus ADVC- 100 Advanced Digital video converter.
All full power broadcasters in the US have switched.
All full power broadcasters in the US have switched.
digital video camera
Robo Cop2
An Integrated Switched Digital Network (ISDN) is a telecommunications technology that allows for the simultaneous transmission of voice, data, and video over digital lines. It integrates various forms of communication through a single network, providing higher quality and more reliable connections compared to traditional analog systems. ISDN is commonly used for telephone services, video conferencing, and high-speed internet access. It features two main types of services: BRI (Basic Rate Interface) for smaller users and PRI (Primary Rate Interface) for larger organizations.
a Digital Camera
digital internet video excess digital internet video excess