Television – Format conversion – Line doublers type
Reexamination Certificate
2005-07-26
2005-07-26
Philippe, Gims (Department: 2613)
Television
Format conversion
Line doublers type
C348S700000
Reexamination Certificate
active
06922214
ABSTRACT:
Motion between adjacent fields of an interlaced video signal is analyzed by vertically interpolating the current field to produce a line signal which corresponds in vertical position with lines from the succeeding and preceding fields; and subtracting the signals to provide a field difference. The effect of vertical detail is reduced by comparing two field differences or by subtracting a local or global detail signal from the field difference.
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Patent Abstracts of Japan, Publication No. 58050863, Publication Date Mar. 25, 1983, Applicant Matsushita Electric Inc Co Ltd.
Michael & Best & Friedrich LLP
Philippe Gims
Snell & Wilcox Limited
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