Panasonic DMRXS400EG Operating Guide

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VQT3C77
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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 benefit of JPEG is less deterioration in 
picture quality considering the degree of compression.
LNB (Low Noise Block - converter)
This is attached to the satellite dish, which will amplify the 
weak signal that was received, lower the frequency, and 
input into the tuner.
LPCM (Linear PCM)
These are uncompressed digital signals, similar to those 
found on CDs.
MPEG2 (Moving Picture Experts Group)
A standard for efficiently compressing and expanding colour 
video. MPEG2 is a compression standard used for DVD and 
satellite based digital broadcasting.
MPEG-4 AVC/H.264
A standard for efficiently compressing and expanding colour 
video. MPEG-4 AVC/H.264 is an encoding method used for 
recording of the High Definition video.
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.
Pan&Scan/Letterbox
In general, DVD-Video are produced with the intention that 
they be viewed on a widescreen TV (16:9 aspect ratio), so 
images often don’t fit regular (4:3 aspect ratio) TVs. Two 
styles of picture, “Pan & Scan” and “Letterbox”, deal with this 
problem.
Progressive/Interlace
Interlace is a conventional image signal that displays the 
image in 2 phases by splitting the display into odd and even 
scans.
Progressive will display whole image in 1 scan. Therefore, it 
will give High Definition image without flickering compared 
with interlace.
Protection
You can prevent accidental deletion by setting writing 
protection or deletion protection.
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.
Signal Quality
This is the guide for checking the aerial direction. The 
numbered values displayed do not indicate the strength of 
the signal, but the quality of the signal (the signal to noise 
ratio, or “S/N”). The channels you can receive are affected 
by weather conditions, seasons, time (day/night), region, 
length of the cable that is connected to the aerial, etc.
Thumbnail
This refers to a miniature representation of a picture used to 
display multiple pictures in the form of a list.
Transponder
The signals of a broadcasting station are received by a 
transponder on a satellite. The transponder converts them to 
frequencies and sends them to satellite dishes near the 
ground. A transponder can broadcast several TV and radio 
programmes or data in parallel.
1080i
In one High Definition image, 1080 (1125) alternating scan 
lines pass every 1/50
th
 of a second to create an interlace 
image. Because 1080i (1125i) more than doubles current TV 
broadcasts of 480i (525i), the detail is much clearer and 
creates a more realistic and rich image.
1080p
In one High Definition image, 1080 (1125) scan lines pass at 
the same time every 1/50
th
 of a second to create a 
progressive image. Since progressive video does not 
alternate scan lines like interlace, there is a minimal amount 
of screen flicker.
720p
In one High Definition image, 720 (750) scan lines pass at 
the same time every 1/50
th
 of a second to create a 
progressive image. Since progressive video does not 
alternate scan lines like interlace, there is a minimal amount 
of screen flicker.
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.
DMRXS400EG-VQT3C77_eng.book  109 ページ  2011年5月16日 月曜日 午前9時3分