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Method and apparatus for controlling exposure of video camera

  • US 5,128,769 A
  • Filed: 07/18/1990
  • Issued: 07/07/1992
  • Est. Priority Date: 07/18/1989
  • Status: Expired due to Term
First Claim
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1. An exposure control apparatus comprising:

  • an image sensor for picking up a scene and generating video signals;

    adjusting means for adjusting an exposure amount of said image sensor;

    evaluating means for evaluating a time sequential change of said video signals corresponding to at least two different areas in a pick-up frame of said image sensor; and

    speed changing means for changing a control speed of said adjusting means in response to a signal generated from said evaluating means depending on whether or not a change in the scene has occurred.

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