What Is Digital Television (DTV)?
Short for Digital Television, it is a digital television standard that
is fast replacing analog (or NTSC analog) television. DTV enables
broadcasters to offer television with movie-quality picture and sound.
It also offers greater multicasting and interactive capabilities.
While many use the terms Digital Television (DTV) and High-definition
Television (HDTV) interchangeably, they are, in fact, two different
things. DTV refers to the actual TV signal being transmitted digitally
(instead of as an analog signal). DTV offers several broadcast options,
two of which are considered to be HDTV formats. Some of the more common
DTV standards include:
- 480i: -the digital version of current analog signals.
- 480p: - provides a sharper image and looks closer to HDTV than regular television. Today all DVDs can be played on EDTV.
- 720p: - provides an image close in quality to 1080i, but allows 480p signals to be broadcast as well.
- 1080i: - the most detailed HDTV image available from broadcast TV
The numbers above represent the vertical resolution, while the
letters represent interlaces or progressive scan (i) (p). For example,
1080i represents 1080 vertical resolution, interlaced. For more
information on the complete list of current DTV standards, you can
visit the ATSC Web site.
What's the newest technology?
It’s the newest technology out there, offering clearer sound and picture
quality, while offering more viewing channels and an all around clearer picture
and impeccable sound quality.
Is digital technology more efficient?
Digital television is also so much more efficient than analog TV, so
broadcasters will be able to offer a wider range of channels and better
programming through digital technology.
Digital technology is going to be like CD’s (compact disks) are to Blue Ray
before we know it, so learning about this new technology will only benefit you
in the near future.
