A Guide to Digital TV

•What is Digital Television?
Digital television (DTV) is a new way of transmitting high quality video and audio to your TV set.
Using DTV, broadcasters can transmit high definition TV (HDTV) images, Dolby digital surround
audio, and new services such as multicasting (transmitting more than one program on the same
TV channel) and datacasting. Several of these services can be combined into a single digital
broadcast.

Digital Television Services

•Digital Picture Quality
DTV programs are transmitted in two different formats. The first is Standard Definition Television
(SDTV) and the second is High Definition Television (HDTV).
•SDTV program formats include 480-line interlaced (480i) and 480-line progressive (480p) video.
480i programs are essentially a digital version of our current analog TV programs, while the 480p
format offers improved image detail over 480i. Some 480p programs are broadcast in widescreen
and are comparable to progressive-scan DVD movies in image quality.
• HDTV program formats include 1080-line interlaced (1080i) and 720-line progressive (720p).
Both HDTV formats are always broadcast in widescreen, and offer much higher picture quality than
SDTV.
•Dolby Surround Sound
With DTV, you can listen to a variety of Dolby digital audio formats from Dolby Surround 2.0 to
Dolby Digital 5.1 surround, using your home audio system. Many HDTV programs are now
broadcast with DD 5.1 soundtracks.
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The product unit accompanying this user manual is licensed under certain intellectual property rights of certain third
parties. In particular, this product is licensed under the following US patents:
5,991,715, 5,740,317, 4,972,484, 5,214,678, 5,323,396, 5,539,829, 5,606,618, 5,530,655, 5,777,992,
6,289,308, 5,610,985, 5,481,643, 5,544,247, 5,960,037, 6,023,490, 5,878,080, and under US Published
Patent Application No. 2001-44713-A1.
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for product features or functions that do not conform to the ISO/IEC 11172-3 or ISO/IEC 13818-3.
The product unit accompanying this user manual is licensed under certain intellectual property rights of certain
third parties. This license is limited to private non-commercial use by end-user consumers for licensed contents.
No rights are granted for commercial use. The license does not cover any product unit other than this product unit
and the license does not extend to any unlicensed product unit or process conforming to ISO/IEC 11172-3 or
ISO/IEC 13818-3 used or sold in combination with this product unit. The license only covers the use of this
product unit to encode and/or decode audio files conforming to the ISO/IEC 11172-3 or ISO/IEC 13818-3.
No rights are granted under this license for product features or functions that do not conform to the ISO/IEC
11172-3 or ISO/IEC 13818-3.
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