Overview
High-Definition Television (HDTV) is one of the many (18) subsets
in the DTV standards. It represents
the premier method of transmitting, receiving, and viewing digital
broadcasts. It is the highest-quality version of DTV providing a
sharp, bright, and crystal-clear picture on a wide-screen TV set
while sounding like a compact disc. HDTV began its commercial life
in July 1997 when WRAL-HD in Raleigh, North Carolina, became the
nation’s first commercial, over-the-air, HDTV station.
HDTV provides resolution (clarity) of about twice that of conventional
(NTSC) TV in both horizontal (H) and vertical (V) dimensions. Full
HDTV signal requires a much wider bandwidth than a regular digital
signal and is compressed before transmission. It has a picture aspect
ratio (H x V) of 16:9 and is a wider screen or aspect ratio than
does NTSC. High definition approved formats are 1080 horizontal
lines of resolution (interlaced) and 720 horizontal lines of resolution
(progressive). It supports dolby digital audio within the HDTV set.
Market Research
The market size for wide format and HDTV display systems is predicted
by Stanford Resources to be on a growth track from 8 million units
in 1999 to more than 14.2 million units in 2003.
Market Trends
HDTV is currently cost prohibitive to the average consumer, and
there is no consensus among manufacturers that HDTV will even happen.
Japan's HDTV launch has been stunted by lack of attractive programs,
and Europe all but abandoned HDTV due to a failure in reaching accord
with programmers, signal providers, and the public. While political
bodies and manufactures wait for the marketplace to decide, the
problem is that the marketplace has no basis upon which to make
an informed decision since there have been no wide spread demonstrations
of the new technology. There continue to be conflicts over broadcasting
standards and this prevents rapid product deployment. Without a
particular standard being accepted manufacturers may be locked out
of the market for an entire product cycle.
Xilinx Solutions
The Xilinx Spartan-II programmable logic solutions offer the flexibility
to build products that can be reprogrammed in the field at costs
far below any programmable solution. Please view the presentation
to see how Xilinx solutions can help you build products for this
fast evolving market place.
|