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United States Utility Patents
4,040,090 - 4,040,099

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NumberTitle
4,040,090 Bias gate for noise suppression circuit
4,040,091 Direct electronic fourier transforms of optical images
4,040,092 Smear reduction in CCD imagers
4,040,093 System for coding information change picture elements in facsimile signal
4,040,094 Electronic screening
4,040,095 Apparatus and method for facsimile scanning
4,040,096 Flying spot scanner with runout correction
4,040,097 Magnetic card-reader with movable magnetic head
4,040,098 Editing system for controlling the transfer of selected video information from a video source to a video tape recorder
4,040,099 Method and apparatus for preparing recorded program material to render detectable unauthorized magnetic tape duplications, and method and apparatus for detecting such duplications



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