SAA2510 Просмотр технического описания (PDF) - Philips Electronics

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SAA2510

Video CD (VCD) decoder

Philips Electronics 

Philips Semiconductors

Video CD (VCD) decoder

Preliminary specification

SAA2510

The second example, illustrated in Fig.4, is where a

240 active lines per field NTSC picture needs to be

displayed on a 288 line PAL format display. The ‘missing’

lines can be filled with a programmable border colour.

High-resolution still pictures can be present on a Video CD

disc.

In this event, the horizontal and vertical resolution of the

reconstructed picture is double that of normal resolution

(moving) pictures. In order to fit the picture in the available

frame buffer DRAM, a data compression scheme is

applied to the stored picture.

handbook, halfpage

24

reconstructed picture

352

not displayed

reconstructed picture

window

240 288

24

not displayed

MGE332

handbook, halfpage

display window

352

border = blank

viewport

border = blank

240 288

MGE333

Fig.3 One field of a 625-line picture on a 525-line

display.

Fig.4 525-line picture on a 625-line display.

1996 May 21

10

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