Roylance, Abrams, Berdo & Goodman, L.L.P.
Telecine signal conversion method and an up-converter
 Telecine signal conversion method for converting an interlaced scan telecine signal generated by 2-3 pull-down system, wherein a picture of the first frame is converted into an interlaced signal of the first and second fields and a picture in the following second frame is converted into an interlaced signal in the third, fourth and fifth fields, into a progressively scanned telecine signal comprising steps of detecting a pull-down phase of the interlaced scan telecine signal, specifying the first and second fields based on the detected pull-down phase, composing picture signals of the specified first and second fields and generating progressively scanned telecine signals from the picture signals of the first and second frames, and specifying the third and fourth fields based on the detected pull-down phase, composing picture signals of the specified third and fourth fields and generating progressively scanned telecine signals from the picture signals of the third, fourth and fifth frames. 
Nippon Television Network Corporation
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H04N G11B H04N G11B
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Hidehiko Masayuki
Kikuchi Ishida