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INDEX
Index
Glossary
Digital Broadcasts and D-VHS
Great changes in the entertainment and media industries
are transforming the way we use VHS, and digital
broadcasting is a good example of what the future holds.
Digital broadcasting now allows more efficient use of the
limited broadcast spectrum besides delivering high-
definition video, outstanding sound quality, multiple
channels, and multiple features.
Meanwhile, VHS has evolved with the advances in
broadcasting in response to the need for continued use
of existing VHS resources and the trend toward digital
broadcasts.
Digital broadcasting is not limited to transmissions of
audio and video content. A variety of other data can be
sent as well. As the means to record all of these digital
signals while supporting playback of the extensive VHS
library of analog tapes, D-VHS was developed.
D-VHS is the key to a smooth transition from analog to
digital formats. This next-generation home video
technology lets us continue to enjoy home video
entertainment as popularized in the last century well into
the next.
i.LINK
i.LINK is a digital serial interface that allows devices
equipped with an i.LINK connector to exchange digital
video signals, digital audio signals, and device control
signals bi-directionally over a single cable.
i.Link refers to the IEEE1394-1995 industry specification and
extensions thereof. The
logo is used for products compliant
with the i.Link standard.
S200 i.LINK connector
For i.LINK compatible devices, a maximum data transfer
speed is identified near it's i.LINK connectors. i.LINK
defines a maximum data transfer speed of approximately
100, 200 and 400Mbps* that are described as S100,
S200 and S400 respectively. When connecting with a
device that supports different data speed, and depending
on the specification of the device, the actual data
transfer speed may differ from those described on the
i.LINK connector.
*Mbps is an abbreviation for Megabits per second. It is a
measure of the rate at which data is transmitted in 1
second. In the case of 200Mbps, 200 Megabits of data
can be transmitted in 1 second.
MPEG2
Abbreviation for Moving Picture Experts Group, Phase 2.
Unlike previous compression methods, MPEG-2 uses an
extremely efficient compression method that supports
high-definition video. Based on the principle that much
video data remains unchanged from one frame to the
next, predictive coding is performed to eliminate
redundant data.
Specifically, compression is applied between frames
(based on the correlation of frame data) and within
frames (based on DCT, or discrete cosine transform) for
an extremely efficient compression technique.
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EN
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