Index; Glossary - JVC HM-DH40000U Instructions Manual

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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.
This VCR is equipped with an MPEG-2 encoder and
decoder (codec) for digital recording and playback of
analog signals.
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.
Linear PCM Audio
Conventional D-VHS recording uses MPEG-1 Layer 2
compression to record analog audio digitally.
For recording without compression, this VCR also
features PCM recording (pulse code modulation: 48 kHz,
16-bit, 1536 kbps).
Used with high-resolution HS/STD mode, it offers
outstanding high-fidelity recording and playback.
(Recording from audio input alone is not supported.)
Dolby Digital
A form of digital audio coding developed by Dolby
Laboratories to deliver surround sound with 5.1 channels
(front left and right, center, rear left and right, and a
channel for LFE (low-frequency effects).
When you play back a digital tape encoded in Dolby
Digital format, the Dolby Digital bistream is sent from
the DIGITAL OUT OPTICAL connector.
Set "OPTICAL OUT" to "Dolby D" (
Manufactured under license from Dolby
Laboratories. "Dolby", "Pro Logic", and the double-D
symbol are trademarks of Dolby Laboratories.
Confidential unpublished works. Copyright 1992-
1997 Dolby Laboratories. All rights reserved.
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.
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.

INDEX

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