Facsimile and static presentation processing – Facsimile – Specific signal processing circuitry
Patent
1979-08-06
1983-04-12
Safourek, Benedict V.
Facsimile and static presentation processing
Facsimile
Specific signal processing circuitry
358183, 356237, H04N 718
Patent
active
043800254
ABSTRACT:
An auxiliary blanking and simulator method and apparatus for providing a blanking window and simulated video pulses for a bright field analyzer video inspection system. Monostables triggered by the horizontal and vertical synchronization pulses of the video inspection system define the horizontal and vertical leading and trailing edges of a blanking window signal. The blanking window signal defines a blanking window within which inspection is inhibited. The blanking window signal is coupled to a reject gate of the video inspection system and to a video monitor for displaying the blanking window. A second group of monostables generates a simulated video signal for enhancing the shoulder blanking capability of the video inspection system. This simulated signal is combined with the video information signal from a video camera before the video signal is electronically processed for defect determination.
REFERENCES:
patent: 2798605 (1957-07-01), Richards
patent: 3257397 (1966-06-01), Schneider
patent: 3379329 (1968-04-01), Gambrell et al.
patent: 3624289 (1971-11-01), Dudley
patent: 4002823 (1977-01-01), Van Oosterhout
Alberding Gilbert E.
Ball Corporation
Coles Edward L.
Safourek Benedict V.
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