DVDO iScanPlus V2 manual Video Processing, System Block Diagram

Silicon Image, Inc. Scan Plus v2 User Manual

Video

Source

iScan Plus V2
		Deinterlacing
		480i to 480p
Analog to	Decoding	6L,￿￿￿￿	Digital to
Digital	NTSC to		Analog
Conversion	Component	&KLS	Conversion

Display

or

Projector

Figure 4: System Block Diagram

Video Processing

All of the processing steps in the signal chain between your video source and the display influence the quality of the image.

The following are brief descriptions of the series of steps shown in Figure 4.

1.A signal is generated by a source (DVD player, Laser Disc, VCR, Cable Box, DSS Receiver…)

2.The signal is converted from analog to digital.

3.The digital video signal is decoded from NTSC composite or S-Video (Y/C) to its basic components of Y, Cr and Cb.

4.The component signal is converted from interlace to progressive by the SiI502 chip.

5.The progressive signal is converted back to analog RGB or Y-Pb-Pr and sent over a cable to the display.

The iScan Plus v2 processes steps 2, 3, 4, and 5, but the final quality of the displayed image depends both on the quality of the source and the display device.

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