Who invented hdtv

HDTV carries too much information to fit into current broadcast channels. All those pixels can be squeezed into a standard channel about as readily as a camel can pass through the eye of a needle. Before the new sets begin appearing in stores, broadcasters must figure out how to broadcast high-definition signals without making obsolete the million or so television sets now operating across the country. The sooner broadcasters figure out a way to comply with FCC requirements, the better, according to various electronics manufacturers who are dying to get their new high-definition sets on the market.

There are a variety of ways HDTV signals might be transmitted. One possibility would be for existing stations to send the extra signals necessary to complete a high-definition image through unoccupied channels on the television band. In local markets, to prevent interference, television stations are separated by vacant channel space.

A station could broadcast one set of signals on ordinary VHF channels 2 through 13 and send the additional picture information over a blank channel. Traditional TV sets would pick up the regular channel, while viewers with high-definition sets would pull in both sets of signals, which would be combined by their televisions into a single enhanced image.

Another possibility is direct-broadcast satellite. High-definition images could be beamed by satellite to homes equipped with satellite dishes. High-definition television sets would pick up both the new satellite transmissions and traditional broadcasts.

December 31, July 3, August 15, News Developments Ideas. The Development of HD Technology The earliest high-resolution experiments date back to the s and s , when resolution was measured in lines per screen. But further development of analog HDTV was blocked by limited bandwidth. HD Today HDTV uses a standard called p, which delivers a resolution of xp, equivalent to 2,, pixels per frame 2. Related posts:. Researchers achieve HD video streaming at 10, times lower power April 27, Tech push transforms TV viewing experience May 30, A completely new plasmonic chip for ultrafast data transmission using light July 3, Our Articles see all.

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