Is a
Patent attributes
Patent Jurisdiction
Patent Number
Patent Inventor Names
Vincent Richard Williams0
Jaime Arturo Valenzuela0
Date of Patent
July 22, 2008
0Patent Application Number
104896520
Date Filed
August 30, 2002
0Patent Primary Examiner
Patent abstract
An apparatus for playback of an analog optical sound track on a film includes a transport for transporting the film past a scanner that generates a digital image signal representative of the analog optical sound track. The digital signal represents the optical signal as gray scale values with a range of greater than one bit. A processor processes the digital image signal for displaying and assessing a result while adjusting a threshold that determines the representation of gray scale values with one bit of resolution.
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