Panasonic SAPM91D SAPM91 User Guide - Page 31
GLOSSARY, DTS Digital Theater Systems
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Glossary Glossary Decoder A decoder restores the coded audio signals on DVDs to normal. This is called decoding. Dolby Digital This is a method of coding digital signals developed by Dolby Laboratories. Apart from stereo (2-channel) audio, these signals can also be multi-channel audio. A large amount of audio information can be recorded on one disc using this method. DTS (Digital Theater Systems) This surround system is used in many movie theaters around the world. There is good separation between the channels, so realistic sound effects are possible. Dynamic range Dynamic range is the difference between the lowest level of sound that can be heard above the noise of the equipment and the highest level of sound before distortion occurs. Film and video DVD-Videos are recorded using either film or video. Usually, film is recorded at 24 frames per second, the rate movies are filmed at, while video is recorded at 30 frames per second. Frame still and field still Frames are the still pictures that go together to make a moving picture. There are about 30 frames shown each second. One frame is made up of two fields. A regular television shows these fields one after the other to create frames. A still is shown when you pause a moving picture. A frame still is made up of two alternating fields, so the picture may appear blurred, but overall quality is high. A field still is not blurred, but it has only half the information of a frame still so picture quality is lower. Interlace and progressive output NTSC, the video signal standard, has 480 interlaced (I) scan lines, whereas progressive scanning uses twice the number of scan lines. This is called 480P. The video signals output from this unit's COMPONENT VIDEO OUT terminals (Y, PB, PR) allow you to enjoy higher quality pictures than if the signals were output from the VIDEO OUT terminal or S-VIDEO OUT terminal. I/P/B MPEG 2, the video compression standard adapted for use with DVDVideo, codes frames using these 3 picture types. I: Intra coded picture This picture has the best quality and is the best to use when adjusting the picture. P: Predictive coded picture This picture is calculated based on past I or P-pictures. B: Bidirectionally-predictive coded picture This picture is calculated by comparing past and future I and P-pictures so it has the lowest volume of information. Linear PCM (pulse code modulation) These are uncompressed digital signals, similar to those found on CDs. Playback control (PBC) If a Video CD has playback control, you can select scenes and information with menus. Manufactured under license from Dolby Laboratories. "Dolby" and the double-D symbol are trademarks of Dolby Laboratories. "DTS" and "DTS 2.0 + Digital Out" are trademarks of Digital Theater Systems, Inc. ,HDCD®, High Definition Compatible Digital® and Pacific MicrosonicsTM are either registered trademarks or trademarks of Pacific Microsonics, Inc. in the United States and/or other countries. HDCD system manufactured under license from Pacific Microsonics, Inc. This product is covered by one or more of the following: In the USA: 5,479,168, 5,638,074, 5,640,161, 5,808,574, 5,838,274, 5,854,600, 5,864,311, 5,872,531, and in Australia: 669114, with other patents pending. Apparatus Claims of U.S. Patent Nos. 4,631,603, 4,577,216, and 4,819,098, licensed for limited viewing uses only. This product incorporates copyright protection technology that is protected by method claims of certain U.S. patents and other intellectual property rights owned by Macrovision Corporation and other rights owners. Use of this copyright protection technology must be authorized by Macrovision Corporation, and is intended for home and other limited viewing uses only unless otherwise authorized by Macrovision Corporation. Reverse engineering or disassembly is prohibited. MPEG Layer-3 audio decoding technology licensed from Fraunhofer IIS and Thomson multimedia. Windows Media, and the Windows logo are trademarks, or registered trademarks of Microsoft Corporation in the United States and/or other countries. WMA is a compression format developed by Microsoft Corporation. It achieves the same sound quality as MP3 with a file size that is smaller than that of MP3. RQT7932 31