Method for vertical imaging scaling

Details Method for vertical imaging scaling Method for vertical imaging scaling

1997-05-30

2000-08-08

Nguyen, Chanh

Computer graphics processing and selective visual display system

Display peripheral interface input device

Light pen for fluid matrix display panel

345 84, 345202, G09G 526

Patent

active

061008702

ABSTRACT:
A method for operating a scan-line video processor that allows for vertical scaling with no additional memory in a display system and extracts more SVP instructions in vertical down scaling applications. The input and output sync periods of the SVP (16) are controlled such that the SVP (16) produces output lines of interpolated data that is a vertical scaling factor of the input lines. The data is then sent to a memory (24) to correct for centering and time base changes in the interpolated data. Finally, the data is sent to a display device, such as a CRT or a spatial light modulator.

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