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With the arrival of Digital Television
(DTV) and High-Definition Television (HDTV), consumers and
broadcasters face a multitude of configuration issues related
to broadcasting, receiving, and viewing DTV and HDTV content.
HDTV is a subset of 6 of the 18 DTV formats
currently being used by various broadcasters and media players
(such as DVD players). DTV and HDTV broadcasts are offered
in a variety of vertical resolutions, aspect ratios, and scan
modes.
Yet, not all HD televisions support all
DTV broadcast formats, and DTV receivers/decoders are forced
to perform the appropriate conversions that allow the viewer
to watch these broadcasts.
HDTV vs. HD-Ready (A Buyer's Guide)
True HD, or Integrated HD, televisions
come out of the box with an HD tuner built right in. Just
plug in a High-Definition broadcast source like digital cable,
and you're set. The only drawback here is the price, as integrated
HDTV sets run into the thousands of dollars.
HD-ready sets, on the other hand, are more
affordable, and can display both standard and High-Definition
programming. An external HD tuner is required in addition
to your digital signal receiver. Motorola's DCT5100 HD Digital
Cable Receiver integrates both into one convenient unit.
Pixel for pixel, here's what you can expect
from today's HDTV technology:
| Display Technology |
Viewing Angle |
Screen Size |
Unit Size |
Unit Cost |
| Direct View |
Up to 160° |
Up to 40" |
Very heavy CRT |
$1500-$4500 |
| Rear Projection |
Up to 100° |
Up to 65" |
Very large cabinet |
$1500-$6500 |
| Liquid Crystal |
Up to 160° |
Up to 30" |
Thin flat panel |
$1000-$8500 |
| Plasma Screen |
Up to 160° |
Up to 56" |
Thin flat panel |
$4500-$15000 |
While shopping, you may notice some TVs
described as Enhanced Definition. Just as the name implies,
these TVs can provide a better picture by supporting the
480p, widescreen, progressive scan resolution mode. This
can result
in sharper
video especially
when used
with progressive scan DVD players. However, this is not High-Definition
as the lines of resolution are the same as Standard Definition
(480). Look for a TV that is clearly marked High-Definition
and supports either the 720p and/or 1080i resolution modes.
Watch This
The number of channels and networks broadcasting
in High-Definition format is growing by leaps and bounds.
HBO, Showtime, Discovery Channel and ESPN all offer HD programming
and major networks like ABC, CBS, NBC and PBS all broadcast
a portion or all of their programming in High-Definition.
Since the beginning of television, Motorola
Broadband (formerly General Instruments) has been at the
forefront of cable television technologies:
In 1957, we built the technology for the first pay-per-view
event; in 1972, Motorola Broadband developed the first remote-controlled
set-top box, and in 1992, helped launch the digital revolution
by proposing to the government a concept that no one else
had considered - transitioning from analog to digital technology
to drive High-Definition TV (HDTV).
Along the way, Motorola Broadband has continued
pioneering solutions that drive the delivery of digital television.
With a complete set of products for broadcasters, cable network
operators, and consumers, the company has developed a fully
integrated platform with reliable, compatible offerings at
every point in the chain.
- First coaxial cable television system in the Eastern US
(1950)
- First to work on pay-per-view baseball games (early 1950s)
- First five Channel distribution amplifier (Golden Cascader)
(1956)
- First to be involved with a pay-TV experiment (The Pajama
Game, Bartelsville Oklahoma, 1957)
- First 12 channel (216MHz amplifier) (1959)
- First 20-channel electro-mechanical cable converter (1967)
- First remotely controlled converter (1972)
- First 300 MHz amplifier - Starline (1973)
- First 400 MHz amplifier (1979)
- First totally integrated addressable system (1981)
- First to develop a store-and-forward ordering mechanism
for two-way
cable plants (1983)
- First 550 MHz amplifier and converter (1983)
- First to introduce a programming service that used impulse
store and
forward technology - Cable Video Store (1985)
- First to introduce Integrated Receiver/Descramblers (1987)
- First to introduce AM fiber Optics laser, dramatically
improving the
performance of cable television
- First 750 MHz amplifier (1989)
- First to submit an all-digital HDTV system to the FCC
- First Operational all-digital HDTV system (Digicipher
HDTV, 1991)
- First to demonstrate digital compression (Digicable) over
cable
(1991)
- First all-digital HDTV transmissions using Digicipher
HDTV hardware
over-the-air cable and satellite (1992)
- First to integrate computer technologies into addressable
cable TV
terminals (1993)
- First to develop a hybrid fiber coax broadband network
(1993)
- First volume commercial digital cable deployment (1996,
as General· Instrument Corporation)
- First one-millionth interactive digital set-top shipment
(1998)
- First volume commercial deployment of Internet access
via cable
(1998)
- First volume commercial deployment of video-on-demand
(1999)
- First 10 millionth interactive digital set-top shipment
(2000)
- First one-millionth DOCSIS cable-modem shipment (2000)
- First home-networking DOCSIS-enabled cable modem (2000)
- Industry's first wireless cable modem gateway (2002)
- First 25 millionth interactive digital set-top shipment
(2003)
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