
Glossary
Refresh Rate | The number of refresh operations per second The |
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| same luminosity and color for an extremely short |
| time. For this reason, the image must be scanned |
| many times per second in order to refresh the light- |
| emitting element. The refresh rate is expressed in |
| hertz (Hz). |
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Resized display | This function is used to project computer images |
| that have a resolution more than or less than the |
| projector's panel resolution, so that they fill the |
| whole of the projection area. |
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SDTV | An abbreviation for Standard Definition Television. It |
| refers to standard television systems which do not |
| satisfy the conditions for |
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Security | A device consisting of a projector case with a hole in |
lock | it that a |
| cable can be passed through in order to secure the |
| device to a table or pillar. This projector is |
| compatible with the MicroSaver Security System |
| manufactured by Kensington. |
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Squeeze | The method of compressing 16:9 Widescreen |
mode | images and recording them on video software as 4:3 |
| images. |
| When projecting with Squeeze mode on, the images |
| will return to their original 16:9 format. |
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sRGB | An international standard for color intervals that was |
| formulated so that colors which are reproduced by |
| video equipment can be handled easily by computer |
| operating systems (OS) and the Internet. |
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SVGA | A type of video signal with a resolution of 800 |
| (horizontal) ⋅ 600 (vertical) dots which is used by |
| IBM |
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A type of video signal which has the video | |
| brightness and color signal information separated, in |
| order to provide better image quality. It refers to |
| images which consist of two independent signals: |
| Y (luminance signal), and C (color signal). |
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Sync. | The process of matching the phases (the relative |
(Synchronization) | position of crests and troughs) of computer and |
| projector signals. If signals are not synchronized, |
| problems such as flickering, blurriness and |
| horizontal interference can occur. |
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Tracking | The process of matching the computer and projector |
| frequencies (the number of crests in the signals). If |
| tracking is not carried out correctly, wide vertical |
| stripes will appear in the projected images. |
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VGA | A type of video signal with a resolution of 640 |
| (horizontal) ⋅ 480 (vertical) dots which is used by |
| IBM |
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XGA | A type of video signal with a resolution of 1,024 |
| (horizontal) ⋅ 768 (vertical) dots which is used by |
| IBM |
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YCbCr | The carrier signal contained in the color bar signal |
| used in modern (NTSC) TV transmissions. The |
| name comes from the Y (luminance) signal and the |
| CbCr (chroma [color]) signals. |
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YPbPr | The carrier signal contained in the color bar signal |
| used in |
| The name comes from the Y (luminance) signal and |
| the PbPr (color difference) signals. |
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