65
RQT8672
Glossary
Component video output
Component signal outputs the colour difference signals (P
B
/
P
R
) and luminance signal (Y) separately in order to achieve
high fidelity in reproducing colours. If the television is
compatible with progressive output, a high quality picture can
be output because this unit's component video output
terminal outputs a progressive output signal.
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.
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.
Down-mixing
This is the process of remixing the multi-channel audio found
of some discs into two-channel output.
Some multi-channel DVD-Audio will prevent down-mixing of
all or part of their contents if this is the manufacturer’s
intention.
This unit cannot down-mix these types of discs. (When the
disc is automatically down-mixed, audio will not be output
correctly when using headphones, etc. Audio is output only
with the front two channels, etc.)
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 listen at low volumes but still hear dialogue clearly.
Film and video
DVD-Videos are recorded using either film or video. This 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 films.
Video:
Recorded at 25 frames/50 fields per second (PAL discs) or
30 frames/60 fields per second (NTSC discs). Generally
appropriate for TV drama programmes or animation.
Finalize
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 finalize DVD-R, DVD-R DL, DVD-RW (DVD-
Video format), +R or +R DL on this unit.
After finalizing, the disc becomes play-only and you can no
longer record or edit. However, finalized DVD-RW can be
formatted to become recordable.
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), +R, +R DL or +RW on this unit.
When you use a new DVD-RW, +R, +R DL or +RW, it must
be formatted.
Formatting deletes irrevocably all contents.
Frames and fields
Frames refer to the single images that constitute the video
you see on your television. Each frame consists of two fields.
≥
A frame still shows two fields, so there may be some
blurring, but picture quality is generally better.
≥
A field still shows less picture information so it may be
rougher, but there is no blurring.
JPEG (Joint Photographic Experts Group)
This is a system used for compressing/decoding colour 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 feature of JPEG is less deterioration in
picture quality considering the degree of compression.
MP3 (MPEG Audio Layer 3)
An audio compression method that compresses audio to
approximately one tenth of its size without any considerable
loss of audio quality. You can play MP3 you have recorded onto
DVD-R, CD-R and CD-RW.
Pan&Scan/Letterbox
In general, DVD-Video are produced with the intention that
they be viewed on a widescreen television (16:9 aspect
ratio), so images often don’t fit regular (4:3 aspect ratio)
televisions. Two styles of picture, “Pan & Scan” and
“Letterbox”, deal with this problem.
Pan & Scan:The sides are cut off so the
picture fills 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.
(This unit is compatible with version 2.0 and 1.1.)
Progressive/Interlace
The PAL video signal standard has 625 (or 576) interlaced (i)
scan lines, whereas progressive scanning, called 625p (or
576p), uses twice the number of scan lines. For the NTSC
standard, these are called 525i (or 480i) and 525p (or 480p)
respectively.
Using progressive output, you can enjoy the high-resolution
video recorded on media such as DVD-Video.
Your television must be compatible to enjoy progressive
video.
Panasonic televisions with 625 (576)/50i · 50p, 525 (480)/
60i · 60p input terminals are progressive compatible.
Protection
You can prevent accidental deletion by setting writing
protection or deletion protection.
RGB
This refers to the three primary colours of light, red (R),
green (G), and blue (B) and also the method of producing
video that uses them. By dividing the video signal into the
three colours for transmission, noise is reduced for even
higher quality images.
Sampling frequency
Sampling is the process of converting the heights of sound
wave (analog signal) samples taken at set periods into digits
(digital encoding). Sampling frequency is the number of
samples taken per second, so larger numbers mean more
faithful reproduction of the original sound.
Thumbnail
This refers to a miniature representation of a picture used to
display multiple pictures in the form of a list.
TIFF (Tag Image File Format)
This is a system used for compressing/decoding colour still
pictures. A common format for storing high quality images on
digital cameras and other devices.
u
r
Frame
Field
Field
T
ro
u
b
le
s
hooting gu
id
e
/ Di
s
c
ha
n
d
li
ng
/ Unit c
a
re
/
Glos
s
a
ry
RT70-30.book Page 65 Thursday, April 13, 2006 1:45 PM
