Sanyo DP37647 Owner's Manual

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Sanyo DP37647 Owner's Manual Manual pdf 46 page image

46GLOSSARY OF TERMSAnalog—Commonly refers to the current NTSC transmissionstandard for televisions.Aspect Ratio—The ratio of the width to the height of a TV screenindependent of the screen size (x units wide by x units high). Analogis 4:3; Digital can be 4:3 or 16:9 (also called wide screen).ATSC—Advanced Television Systems CommitteeAV Jacks—Audio Video JacksBandwidth—The range of frequencies assigned to a broadcastchannel. A TV channel is 6 MHz wide.Component Jacks (Y Pb Pr)—Green, Blue, and Red video jacksthat accept 480i, 480p, 720p, and 1080i signals. By separating theGreen (Y), Blue (Pb), and Red (Pr) video signal components, clearer,more-defined images that exceed the performance of S-Video andComposite video jacks are achieved.Composite Jacks—White, Red, and Yellow AV jacks. The Whiteand Red jacks carry the Left and Right audio signals while theYellow jack carries the composite video signal.Dolby® Digital (Formally known as Dolby AC-3)—A 5.1 channel(Front L/R, Rear L/R, Center, and Bass) surround sound audiostandard for digital television.Downconverting—The removal of pixels. Frame rate and/or scan-ning format may also change. Broadcasters may use this process tomake room in their bandwidth for additional services, such as,sub-channels.DTV (Digital Television)—Comprises four elements, HDTV,EDTV, SDTV, and Multicasting.DVI—Digital Visual Interface. A pure digital video interface thatcan pass standard-definition and high-definition video signals. Itsupports the HDCP copy protection standard, allowing transmissionof copy-protected digital content.EDTV—Enhanced-Definition TV (480p)HDMI—High-Definition Multimedia Interface. An all digitalaudio/video interface that accepts uncompressed video signals forthe very best picture possible. It supports the HDCP copy protectionstandard, allowing transmission of copy-protected digital content.The signal can also include Dolby® Digital or PCM audio, whenavailable.HDTV—High-Definition TV (720p, 1080i, & 1080p)Input / Output Jacks—Used to receive (input) and send (output)signals from one device to another. Such as, from a DVD player(Output) to the TV (Input).Interlaced Scanning—The process of scanning two fields of videothen combining (interlacing) them to make one frame of video (orone complete image).Letter Box—This term is used to describe a 16:9 ratio image beingdisplayed on a 4:3 ratio display device. Black bands appear at the topand bottom of the screen.MPEG2—A compression scheme for moving images and audio. Itwas developed by the Motion Picture Experts Group. This makesHDTV and multicasting possible.Multicasting—The dividing of a station’s broadcast signal into sub-channels of programming or data services. The resolution of themain channel must be reduced to make room for sub-channels.NTSC—National Television Systems CommitteePillar Boxing—This term is used to describe a 4:3 ratio image beingdisplayed on a 16:9 ratio display device. Black bars (or pillars)appear at the sides of the screen.Pixel—Picture ElementProgressive Scanning—The process of scanning lines sequentially.One scan produces one frame of video (or one complete image).Set-Top Box (STB)—A device that receives and converts signals fordisplay on a television screen (can be digital or analog). Many digitalSTBs have cable and over-the-air tuners.SDTV—Standard-Definition TV (480i)Signal—The picture, sound, and data transmitted or receivedthrough the air to an antenna, over a Cable TV system, from a Satel-lite to a dish and receiver, or between external components of anAudio/Video system.Simulcast—Simultaneously broadcasting the same program on twoor more channels. This is required by the FCC during the transitionfrom analog to digital. Simulcasting is scheduled to end and onlydigital broadcasts will continue after February 17, 2009.S-Video Jack—A round 4-pin jack that accepts separated luminanceand chroma signals from a DVD player, Super VHS VCR, or similaranalog device. The resolution of this input exceeds that of a com-posite video input (yellow connector), but is lesser than theresolution of component inputs (Y Pb Pr).Terrestrial—An over-the-air broadcast to an antenna.Upconverting—A process of converting original analog program-ming to digital for DTV broadcasting. Pixels may be duplicated andinserted between existing pixels to simulate HDTV. This does notincrease the resolution. The resolution of an image is set during therecording process. It cannot be increased through conversionprocesses.Wide Screen—Used to describe a 16:9 or greater aspect ratio. 16:9is the standard aspect ratio for HDTV digital displays. Moviesscreens are often slightly wider.

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