Is a
Patent attributes
Current Assignee
0
Patent Jurisdiction
Patent Number
Patent Inventor Names
Satoshi Tanaka0
Hideo Morita0
Date of Patent
August 18, 2009
0Patent Application Number
105154060
Date Filed
May 23, 2003
0Patent Primary Examiner
Patent abstract
An apparatus including a one-field delay circuit 21 for delaying a luminance signal F0 of a video signal under judgment by an amount of one field; a subtractor circuit 22 for generating a difference signal FD0 indicating the difference between a luminance signal F1 and the luminance signal F0 for each field; an adder circuit 23; a one-field delay circuit 24; a one-field delay circuit 25 for delaying the difference signal FD0 by an amount of one field; and a comparison circuit 26 and a judgment circuit 27 for comparing the difference signals FD0 and FD1 and deciding if the luminance signal FD0 is a film video signal based on the result of the comparison.
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