Device for transforming computer graphics signals to...

Details Device for transforming computer graphics signals to... Device for transforming computer graphics signals to...

2005-01-11

2005-01-11

Lee, Michael H. (Department: 2614)

Television

Format conversion

Progressive to interlace

C348S441000, C348S458000

Reexamination Certificate

active

06842195

ABSTRACT:
A transforming device for transforming computer graphics signals to television signals is provided. The transforming device includes a scaled-down line generating unit that receives the computer vertical line and generates the scaled-down vertical line, a controller that receives the scaled-down vertical line, and a scaled-down buffer that stores the scaled-down vertical line or the value of the scaled-down vertical line performed by the weighted-averages method. The content of the scaled-down buffer is transmitted to a weighted-averages operation unit, and then it is performed by the weighted-averages method with the next scaled-down vertical line. When a TV line is generated, it is the output of the transforming device. The present invention has the advantage of reducing the needed buffers in the transforming process and thereby reducing the cost.

REFERENCES:
patent: 5485280 (1996-01-01), Fujinami et al.
patent: 5781241 (1998-07-01), Donovan
patent: 5850263 (1998-12-01), Tauchi
patent: 5912711 (1999-06-01), Lin et al.
patent: 6023262 (2000-02-01), Eglit

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