JVC DT100U Instruction Manual - Page 95

GLOSSARY 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 highdefinition 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. 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 bitstream is sent from the DIGITAL OUT OPTICAL connector. Set "OPTICAL OUT" to "Dolby D" (A page 66). 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 Confidential unpublished works.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. DTS Abbreviation for Digital Theater Systems. A digital surround sound system for theaters, developed by Digital Theater Systems, Inc, of the United States. The encoding format, similar to Dolby Digital, is configured with six (5.1) channels. The sound data is compressed when it is recorded on the medium (CD-ROM), however since the level of compression is low, superior clarity and depth in sound is achieved. As this VCR is not equipped with a DTS decoder, connect the [OPTICAL] terminal to an AV amplifier with built-in DTS and set "OPTICAL OUT" to "STREAM" (A page 66) to output digital surround sound. DTS, DTS Digital Out are trademarks of Digital Theater Systems, Inc. EN 95 HDCP Abbreviation for High-bandwidth Digital Content Protection. HDCP is a specification originally developed by Intel Corporation to enforce copyrights of digital entertainment content across the DVI interface, and now across the HDMI interface as well. HDMI Abbreviation for High-definition Digital Multimedia Interface. HDMI which was built on the foundation of DVI-HDCP, transmits uncompressed high definition video and multichannel digital audio in a single cable with a maximum data transfer speed of 5Gbits/sec. HDMI eliminates the maze of cables behind entertainment systems while maintaining backward compatibility with DVI-HDCP devices. HDMI supports uncompressed standard, enhanced and high definition video format as well as compressed audio formats such as Dolby Digital, DTS and uncompressed format such as PCM etc. In addition, it also supports the HDCP standard of digital video signals. HDMI, the HDMI logo and High-Definition Multimedia Interface are trademarks or registered trademarks of HDMI Licensing LLC. 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 A logo is used for products compliant with the i.Link standard. 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.) 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.