Logitech 915-000074 User Manual - Page 44

Appendix B - Glossary Amplifier A stereo component that outputs to speakers, and increases the gain or level of an audio signal. An amplifier doesn't typically include a radio. Anamorphic views Also referred to as Enhanced for Widescreen, or Enhanced for 16:9. The process that horizontally shrinks a 16:9 image into a 4:3 space to convert images between widescreen and typical television image aspect ratio. Used on many DVDs. Aspect ratio The ratio of image width to image height. Common motionpicture ratios are 1.85:1 and 2.35:1. Television screens are usually 1.33:1 (also known as 4:3). HDTV is 1.78:1, or 16:9. A/V switch A device with several audio and video source inputs that sends a selected audio/video source input signal to an output device like speakers or a TV. DLP® (Digital Light Processing) Projector screen technology that relies on using individually controlled tiny mirrors (micro mirrors) to produce an image. Developed originally by Texas Instruments. DVD recorder (DVR) A standalone unit that resembles and functions very much like a VCR. Like a VCR, DVD recorders all have AV source inputs. It can also record TV shows. HDTV (High Definition The high-resolution form of television. HDTV has 1125 lines of Television) resolution, or more than five times the video information than that of a TV set, creating a much crisper, more detailed picture. Light controller A device that is connected to a set of lights and allows the lights to be powered or dimmed remotely. Mini-system A single unit that is some combination of the functionality of a DVD, VCR, radio, and amplifier. NTSC (National Television System(s) Committee) The standard video broadcast format used in North America. Output Device A device that produces the sound or picture, for example, a TV or speakers. PAL (Phase Alternating A video format that is used in the UK, and parts of Europe and Line) Asia. 44