Television – Format conversion – Line doublers type
Reexamination Certificate
2005-01-19
2008-03-25
Yenke, Brian P. (Department: 2622)
Television
Format conversion
Line doublers type
C348S441000, C348S449000, C348S452000, C348S458000, C348S700000, C348S701000
Reexamination Certificate
active
07349029
ABSTRACT:
A method for de-interlacing an interlaced video signal includes generating a per-field motion pattern set for a subject video field, where the motion pattern set comprises a same-parity motion pattern and an opposite-parity motion pattern pair, providing a plurality of progressive mode pattern pairs, where each progressive mode pattern pair is unique and characteristic of one of a plurality of progressive frame-to-interlaced field conversion techniques, and comparing the same-parity and opposite-parity motion pattern pair for the subject video field with each progressive mode pattern pair to determine whether the subject video field is derived from a progressive source and to identify the progressive frame-to-interlaced field conversion technique used. Based on the comparison, a field-merging de-interlacing technique or a per-pixel de-interlacing technique is utilized to de-interlace the subject field to produce a progressive video signal. In addition, based on the comparison, a display frame rate of the progressive video signal and the number of times to display a de-interlaced frame are also controlled.
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Kolorific, Inc.
Pinnacle Patent Law Group
Yenke Brian P.
LandOfFree
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