Sony DVBK-1000 - Manuel (Page 30)

Technical
information
Number of pixels in the image
In 525/60 system (NTSC, DVBK-1000)
The number of pixels in the image differ for DV
format digital video equipment and IBM PC/AT (or
compatibles), but the screen ratio is the same 4 : 3.
• DV format video: 720 x 480 pixels
• IBM PC/AT: 640 x 480 pixels
The reason why DV format has more pixels in the
horizontal direction is that each pixel in DV format is
rectangular; taller than it is wide.
However, since pixels on the PC are square, the image
overflows in the horizontal direction when the Viewer
decodes and displays the image. To prevent this.
Viewer converts the number of the pixels in the
horizontal direction from 720 to 640 before it decodes
and displays the image.
The image overflows
without conversion.
The image in DV format
(Rectangular pixels)
1
The image on your PC
(Viewer converts the
number of pixels in the
horizontal direction.)
In 625/50 system (PAL, DVBK-1000E)
The number of pixels in the image differ for DV
format digital video equipment and IBM PC/AT (or
compatibles), but the screen ratio is the same 4 : 3.
• DV format video: 720 x 576 pixels
• IBM PC/AT: 768
X 576 pixels
The reason why DV format has less pixels in the
horizontal direction is that each pixel in DV format is
rectangular; wider than it is taller.
30