Television – Format conversion – Line doublers type
Reexamination Certificate
2004-09-02
2008-10-07
Yenke, Brian P. (Department: 2622)
Television
Format conversion
Line doublers type
C348S441000, C348S452000, C348S700000, C348S701000
Reexamination Certificate
active
07432979
ABSTRACT:
An image processing apparatus that can convert an interlaced signal generated by the 3-2 or 2-2 pull-down process, to a progressive signal without degrading the quality of the image represented by the interlaced signal, even if the interlaced signal contains an ordinary 60-fields/sec signal. The apparatus has a progressive conversion unit11. The progressive conversion unit11generates an intra-field interpolated signal and an a motion-adaptive interpolated signal to convert an interlaced signal generated by the 3-2 or 2-2 pull-down process and containing an ordinary 60-fields/sec signal, to a progressive signal. The unit11then determines, for each pixel, whether the intra-field interpolated signal contains a double-image error. If a double-image error is detected, the unit11replaces, for each pixel, the intra-field interpolated signal by the motion-adaptive interpolated signal.
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Frommer William S.
Frommer & Lawrence & Haug LLP
Sony Corporation
Yenke Brian P.
LandOfFree
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