84
RQT9307
Bitstream
This is a signal compressed and converted into digital form. It is
converted back to a multi-channel audio signal, e.g., 5.1-channel, by
a decoder.
CPRM (Content Protection for Recordable Media)
CPRM is technology used to protect broadcasts that are allowed to
be recorded only once. Such broadcasts can be recorded only with
CPRM-compatible recorders and discs.
Decoder
A decoder restores the coded audio signals on DVDs to normal. This
is called decoding.
Deep Colour
This unit incorporates HDMI
TM
(V.1.3a with Deep Colour) technology
that can reproduce greater colour gradation (4096 steps) when
connected to a compatible TV.
You can enjoy exceptionally rich, natural-looking colours, with
smooth, detailed gradation and minimal colour banding.
[A lower colour gradation (256 steps), without Deep Colour, will be
reproduced if connected to a TV which does not support Deep Colour.
The unit will automatically set appropriate output to suit the connected
TV.]
Dolby Digital
This is a method of coding digital signals developed by Dolby
Laboratories. Apart from stereo (2 channel) audio, these signals can
also be multi-channel audio. A large amount of audio information can
be recorded on one disc using this method.
When recording on this unit Dolby Digital (2 channel) is the default
audio.
Down-mixing
This is the process of remixing the multi-channel audio found on
some discs into two channels. It is useful when you want to listen to
the 5.1-channel audio recorded on DVDs through your TV’s speakers.
Some discs prohibit down-mixing. If this is the case, this unit can only
output the front two channels.
Drive
In the instance of this unit, this refers to the hard disk (HDD) and disc
(DVD). These perform the reading and writing of data.
DTS (Digital Theater Systems)
This surround system is used in many movie theaters. There is good
separation between the channels, so realistic sound effects are
possible.
Dynamic range
Dynamic range is the difference between the lowest level of sound
that can be heard above the noise of the equipment and the highest
level of sound before distortion occurs. Dynamic range compression
means reducing the gap between the loudest and softest sounds.
This means you can hear dialogue clearly at low volume.
Film and Video
DVD-Video are recorded using either
fi
lm or video. The unit can
determine which type has been used, then uses the most suitable
method of progressive output.
Film:
Recorded at 25 frames per second (PAL discs) or 24
frames per second (NTSC discs). (NTSC discs recorded at
30 frames per second as well.)
Generally appropriate for motion picture
fi
lms.
Video:
Recorded at 25 frames/50
fi
elds per second (PAL discs) or
30 frames/60
fi
elds per second (NTSC discs). Generally
appropriate for TV drama programmes or animation.
Finalise
A process that makes play of a recorded CD-R, CD-RW, DVD-R, etc.
possible on equipment that can play such media. You can
fi
nalise
DVD-R, DVD-R DL, DVD-RW (DVD-Video format), +R, and +R DL on
the unit. After
fi
nalising, the disc becomes play-only and you can no
longer record or edit. However,
fi
nalised DVD-RW can be formatted to
become recordable.
Folder
This is a place on the disc where groups of data are stored together.
In the case of this unit, it refers to the place where still pictures
(JPEG) are stored.
Formatting
Formatting is the process of making media such as DVD-RAM
recordable on recording equipment.
You can format DVD-RAM, DVD-RW (only as DVD-Video format),
+RW, and the HDD or R and +R DL on this unit.
Formatting irrevocably erases all contents.
Frame and Field
Frame refers to the single images that constitute the video you see on
your TV. Each frame consists of 2
fi
elds.
Frame
Field
Field
A frame still shows 2
fi
elds, so there may be some blurring between
them, but picture quality is generally better.
A
fi
eld still shows less picture information so it may be rougher, but
there is no blurring.
HDD (Hard disk drive)
This is a mass data storage device used in computers, etc. A disk
with a surface that has been treated with magnetic
fl
uid is spun and
a magnetic head is brought in close proximity to facilitate the reading
and writing of large amounts of data at high speed.
HDMI (High-De
fi
nition Multimedia Interface)
Unlike conventional connections, it transmits uncompressed digital
video and audio signals on a single cable. This unit supports high-
de
fi
nition video output [720p (750p), 1080i (1125i) and 1080p (1125p)]
from HDMI AV OUT terminal. To enjoy high-de
fi
nition video a high
de
fi
nition compatible television is required.
JPEG (Joint Photographic Experts Group)
This is a system used for compressing/decoding color still pictures. If
you select JPEG as the storage system on digital cameras, etc., the
data will be compressed to 1/10
−
1/100 of its original size. The bene
fi
t
of JPEG is less deterioration in picture quality considering the degree
of compression.
LPCM (Linear PCM)
These are uncompressed digital signals, similar to those found on
CDs.
MPEG2 (Moving Picture Experts Group)
A standard for ef
fi
ciently compressing and expanding colour video.
MPEG2 is a compression standard used for DVD and satellite based
digital broadcasting. This unit records programmes using MPEG2.
MP3 (MPEG Audio Layer 3)
An audio compression method that compresses audio to
approximately 1/10 of its size without any signi
fi
cant loss of audio
quality.
Pan & Scan/Letterbox
In general, DVD-Video are produced with the intention that they will
be viewed on a widescreen TV (16:9 aspect ratio), so images often
don’t
fi
t regular TVs (4:3 aspect ratio). 2 styles of picture, “Pan &
Scan” and “Letterbox”, deal with this problem.
Pan & Scan: The sides are cut off so the picture
fi
lls the screen.
Letterbox:
Black bands appear at the top and
bottom of the picture so the picture
itself appears in an aspect ratio of
16:9.
Playback control (PBC)
If a Video CD has playback control, you can select scenes and
information with menus on the screen.
(This unit is compatible with version 2.0 and 1.1.)
Glossary
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2009/01/26 17:06:25
