overscan


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overscan

A signal that reaches beyond the viewing area of a display screen. A slight overscan is generally not noticeable on a TV set, but is apparent on a computer monitor where taskbars are typically at the extreme ends of the viewing area.

Some HDTVs have a slight overscan of approximately 4-6%, and signals sent from a PC to an HDTV set may also overscan if not adjusted correctly. When the zoom mode in an HDTV set is selected to fill the sides of the wide screen, it creates the effect of an extreme overscan, although intentional. Contrast with underscan. See HDTV display modes.
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Flexible aspect ratio controls allow for easy removal of the black bars in letterbox and pillar-box images, as well as correction for overscan and underscan.
VXA also offers overscan, in which the heads can read data from any physical location on the tape without having to follow tracks from beginning to end.
The K-3189 particles were analyzed for 500 s at 10 kV and 20 kV utilizing both an overscan of the particle area and a spot analysis on the particle center.
VXA technology is based on three complementary innovations: Discrete Packet Format(TM) (DPF), Variable Speed Operation(TM) (VSO), and OverScan Operation(TM) (OSO).
Proton limits overscan to 5 percent, to assure more of the original broadcast image is preserved.
VXA also offers overscan, in which the heads can read data from any physical location on the tape, without having to follow tracks from beginning to end.
As TV screens do not display the full width of the transmitted picture, Microsoft's engineers plan to use the extreme ends of each scanning line, known as the horizontal overscan, to carry digital code.
VXA1 has won a slew of awards for its three-pronged approach, including discrete packet format, variable speed operation and OverScan Operation.
Olevia[TM] Big Picture Technology[TM] to eliminate overscan and enable consumers to enjoy all of the broadcast image as well as picture-in-picture and split screen functions
RS-232 control, FutureProof[TM] user upgradeable firmware via USB, overscan minimization with Big Picture Technology[TM] and OleviaCare[TM] customer support
Olevia[TM] Big Picture Technology[TM] to reduce overscan and enable consumers to enjoy more of the image
VXA technology is based on three complementary innovations: Discrete Packet Format (DPF), Variable Speed Operation (VSO), and OverScan Operation (OSO).