MediaSonic MS9000, Руководство пользователя

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HD Player Index
115 Rev. 6.4
bit-serial interface. Allows eight embedded AES/EBU audio channel pairs.
SMPTE 305M : The SMPTE standard for Serial Digital Transport Interface
(SDTI).
SMPTE 310M : The SMPTE standard for synchronous serial interface (SSI) for
MPEG-2 digital transport streams; used as the "standard" for the output from the
ATSC systems multiplexer and the input to DTV transmitters.
Spatial
resolution
The number of pixels horizontally and vertically in a digital image.
TCP/IP
Transmission control protocol/Internet protocol. TCP/IP is a combined set of
protocols that perform the transfers of data between two computers. TCP
monitors and ensures correct transfer of data. IP receives the data from TCP,
breaks it up into packets, and sends it to a network within the Internet. Every
computer on the Internet supports TCP/IP.
Temporal
aliasing A defect in a video picture that occurs when the image being sampled moves too
fast for the sampling rate. A common example occurs when the rapidly rotating
spokes of a wagon's wheels appear to rotate backwards because of video
scanning that moves more slowly than the spokes.
Up converting
(up-rezing) The process which increases the number of pixels and/or frame rate and/or
scanning format used to represent an image by interpolating existing pixels to
create new ones at closer spacing. Despite its name the process does not increase
the resolution of the image. Up converting is done from standard definition to
high definition.
Widescreen Term given to picture displays that have a wider aspect ratio than normal. For
example TV's normal aspect ratio is 4:3 and widescreen is 16:9. Although this is
the aspect ratio used by HDTV, widescreen is also used with normal definition
systems.
YUV A color model used chiefly for video signals in which colors are specified
according to their luminance-the Y component-and their hue saturation-the U
and V components.
4:1:1 This is a set of sampling frequencies in the ratio 4:1:1, used to digitize the
luminance and color difference components (Y, R-Y, B-Y) of a video signal.
The four represents 13.5 MHz, the sampling frequency of Y, and the ones each
3.75 MHz for R-Y and B-Y.
With the color information sampled at half the rate of the 4:2:2 system, this is
generally used as a more economical form of sampling for 525-line picture
formats. Both luminance and color difference are still sampled on every line. But
the latter has half the horizontal resolution of 4:2:2, while the vertical resolution
of the color information is maintained. For 525-line pictures, this means the
color is fairly equally resolved in horizontal and vertical directions.
4:2:0
A sampling system used to digitize the luminance and color difference
components (Y, R-Y, B-Y) of a video signal. The four represents the 13.5 MHz
sampling frequency of Y, while the R-Y and B-Y are sampled at 6.75 MHz-
effectively between every other line only (one line is sampled at 4:0:0,
luminance only, and the next at 4:2:2).
This is generally used as a more economical system than 4:2:2 sampling for 625-
line formats so that the color signals have a reasonably even resolution in the
vertical and horizontal directions for that format.
4:2:2 A commonly used term for a component digital video format.
A ratio of sampling frequencies used to digitize the luminance and color