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Analog Audio
An electrical signal that directly represents sound.
Compare this to digital audio which can be an electrical
signal, but is an indirect representation of sound. See also
“Digital Audio”.
Aspect Ratio
The width of a TV screen relative to its height.
Conventional TVs are 4:3 (in other words, the TV screen is
almost square); widescreen models are 16:9 (the TV
screen is almost twice as wide as it is high).
AVCHD
AVCHD is a new format for high definition video
camcorders which can record and play high-resolution
HD images.
BD-Java
With some BDs which support Java applications, you can
enjoy the interactive functions such as games or
interactive menus.
BD-Live
BD-Live is a BD-video (BD-ROM version 2 Profile
2.0 / Profile 1.1) which contains new functions (e.g.
Internet connection), in addition to the BONUSVIEW
function.
Blockbuster
Blockbuster is online service which you can rental or
purchase movies and TV episodes streamed over the
Internet.
Blu-ray Disc (BD)
Blu-ray Disc is a next generation optical video disc which
is capable of storing much more data than a conventional
DVD. The large capacity makes it possible to benefit from
the features such as high-definition videos, multi-channel
surround sounds, interactive menus and so on.
Chapter
Just as a book is split up into several chapters, a title on a
BD-video or DVD-video is usually divided into chapters.
See also “Title”.
CinemaNow
CinemaNow is online service which you can rental or
purchase movies and TV episodes streamed over the Internet.
Component Video Output
Each signal of luminance (Y) and component (PB / CB,
P
R / CR) is independent to output so that you can
experience picture color as it is.
Also, due to compatibility with progressive video
(525p / 480p), you can experience higher-density picture
than that in interlace (525i / 480i).
Deep Color
This technology allows expression of more number of
colors than the conventional 8 bits and can reproduce
colors close to natural ones without color streak.
Digital Audio
An indirect representation of sound by numbers. During
recording, the sound is measured at discrete intervals
(44,100 times a second for CD audio) by an analog-to-
digital converter, generating a stream of numbers. On
playback, a digital-to-analog converter generates an
analog signal based on these numbers. See also
“Sampling Frequency” and “Analog Audio”.
DLNA (Digital Living Network Alliance)
DLNA is a cross-industry organization of consumer
electronics that formulates DLNA Interoperability Guidelines
for sharing digital contents within a home network.
DNS Server
A server which translates Internet domain names into IP
addresses.
Dolby Digital
The system to compress digital sound developed by
Dolby Laboratories. It offers you sound of stereo (2ch) or
multi-channel audio.
Dolby Digital Plus
Dolby Digital Plus is the next generation digital audio
compression technology developed as an extension to
Dolby Digital. Blu-ray Disc supports 7.1 multi-channel
surround sound output.
Dolby TrueHD
Dolby TrueHD is a lossless coding technology developed
for next generation optical discs. Blu-ray Disc supports 7.1
multi-channel surround sound output.
DTS® (Digital Theater System)
DTS® is a multi-channel surround sound system. You can
enjoy movie dynamic and realistic sound like movie
theater. DTS surround sound technologies were developed
by DTS, Inc.
DTS-HD®
DTS-HD® is a lossless coding technology developed as an
extension of the original DTS Coherent Acoustics format.
Blu-ray Disc supports 7.1 multi-channel surround sound
output.
Gateway
IP address of the electronic devices (such as router) which
provide Internet access.
HDMI (High-Definition Multimedia Interface)
A digital interface between audio and video source. It can
transmit component video, audio, and control signal with
one cable connection.
Hub
A device used for connecting multiple device to the
network.
IP Address
A set of numbers which are assigned to devices
participating in a computer network.
GLOSSARY