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Samsung DCB-H360 Manual

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GB-3
DCB-H360R
GB
GB-2
DIGITAL CABLE RECEIVER
DCB-H360R
Aspect ratio
In addition to resolution, HDTV is also defined by the aspect ratio of its broadcasts.
Aspect ratio means the shape of the screen as defined by the ratio of the screen’s width to its
height. For analog TV and SDTV, the aspect ratio is 4 units wide by 3 units high (usually written
4:3). This is the familiar shape of conventional TVs — slightly wider than they are tall.
For HDTV broadcasts, the aspect ratio is 16:9 (nearly twice as wide as it is tall).
This is, not coincidentally, more like the shape of movies shown in theaters.
This makes HDTV an ideal format for broadcasting and viewing movies on a TV.
But what happens if you are watching a nearly square-shaped 4:3 broadcast on a rectangular
16:9 TV, or vice-versa? The HD Receiver allows you to choose from a variety of screen formats
to help you deal with those scenarios.
Dolby
®
Digital 5.1
Dolby Digital 5.1 provides 5 discrete channels of digital audio information for use by A/V receivers
capable of decoding the 5.1 channel signal.
The audio signals are broken into left-front, center, right-front, left-rear, right-rear and a
low-frequency effects channel (designed for subwoofers).
The result when connected to a compatible Dolby Digital 5.1 channel A/V receiver and speaker
setup is a home theater experience that provides much of the dynamic range, 360-degree
imaging, and sonic excitement of a real theater.
To take full advantage of the Dolby Digital 5.1 capabilities of the HD Receiver, you will need a
Dolby Digital 5.1 compatible A/V receiver connected to the HD Receiver through the Dolby Digital
Optical jack.
AC-3 is a sound encoding/decoding technology developed in 1987 for movie theatres and means
an AC-3 bit stream. AC-3 is used synonymously with Dolby Digital nowadays.
HDMI (High Definition Multimedia Interface)
HDMI is an interface to enable the digital transmission of video and audio data with just
a single connector.Using HDMI the receiver transmits a digital video and audio signal
and displays as a vivid picture on a TV having an HDMI input jack.
TECHNICAL OVERVIEW
TECHNICAL OVERVIEW
What are SDTV and HDTV ?
SDTV
SDTV is a digital TV format that provides a high quality picture at resolutions that can be
displayed on standard TV sets (see more on resolutions later in this chapter).
HDTV
HDTV is a digital TV format that provides the highest quality picture at resolutions that can be
displayed on computer monitors and HDTV-ready TV displays (see more on resolutions later in
this chapter).
Resolution
Resolution refers to the number of pixels on the screen. The higher the resolution, the better
the visual quality.
Digital broadcasts are classified into HD and SD grades according to the visual quality. In
general, HD (High Definition) grade supports resolutions of 1920x1080i and 1280x720p and an
aspect ratio of 16:9 for both ATSC and DVB standards.
SD (Standard Definition) grade supports resolutions of 720x480p and 720x480i for the ATSC
standard, and supports resolutions of 720x576p and 720x576i for the DVB standard.
SD grade usually supports an aspect ratio of 4:3. However, it may differ depending on the
region.
DVB-C ( Cable Digital Video Broadcasting)
Digital video broadcasting - cable (DVB-C) is European standard DVB for digital broadcasting
transmission via cable. DVB-C system provide audio/video digital transmission through mpeg-2
format and utilize QAM modulation system.
DVB-C standard has been developed so that a digital broadcasting signal can be sent through
VHF/UHF channels. The advantages of this standard are relatively protected environment with
respect to distortion and signal path attenuation so a higher signal to noise ratio can be
achieved and no negative effect from multipath so higher order modulation schemes can be
implemented.
DCB_H360R draft 0604 eng 06/4/06 07:39 Page 2
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