8.Glossary
| The ratio between the width and height of the TV picture on the screen. In a normal | |
Aspect Ratio | TV set the aspect ratio is 4 to 3 (4:3).The new aspect ratio in HDTV is 16:9 which | |
resembles the aspect ratio in a movie theatre (Widescreen). New TV systems support | ||
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| both 4:3 and 16:9 aspect ratio and can automatically switch between them. | |
| A term often used when discussing a channel on a TV receiver or on video equipment, | |
| which has been especially designed to accept VCR | |
Audio Video (A/V) | automatically activates special circuitry within the TV set to prevent picture distortion | |
| and skewing. It is also used for | |
| signals. | |
CVBS | Composite Video Baseband Signal. In broadcast television this refers to the video signal, | |
including the color information and syncs. | ||
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| Component Video Input is a type of connection that uses a | |
Component Video | to allow cable receiver boxes or analog DVD players to connect a signal to the TV. | |
By offering the | ||
Input (Y Pb Pr) | ||
connected from a cable receiver box directly into the TV allowing for the signal to | ||
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| display on the screen. | |
| The generally agreed upon definition of HDTV is approximately twice the vertical and | |
| horizontal picture resolution of today’s NTSC TV, which essentially makes the picture | |
HDTV | twice as sharp. HDTV also has a screen ratio of 16:9 as compared with most of today’s | |
TV screens, which have a screen ratio of 4:3. HDTV offers reduced motion artifacts (i.e. | ||
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| ghosting, dot crawl), and offers 5.1 independent channels of | |
| sound, (also referred to as | |
| In Progressive Scanning all the horizontal scan lines are scanned on to the screen | |
Progressive Scan | at one time.The Digital TV and HDTV Standards accept both Interlaced Scan and | |
| Progressive Scan broadcast and display methods. | |
| Resolution: A measurement of the finest (smallest) detail that is visible in a video image. | |
| TV Resolutions may be expressed as number of pixels in an image; or more commonly, | |
| As Total Number of (horizontally scanned) Lines used to create the image. | |
Resolution | Standard Digital TV Resolutions: | |
| SDTV: 576i - The picture is 704x576 pixels, 576p - The picture is 720x576 pixels. | |
| HDTV: 720p - The picture is 1280x720 pixels, 1080i - The picture is 1920x1080 pixels. | |
| 1080p - The picture is 1920 x 1080 pixles. | |
| SPDIF (Sony and Philips Digital Interconnect Format) is highly recommended for high | |
| quality digital sound output. | |
SPDIF | DD Note | |
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| SPDIF only supports at HDMI source. |
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