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Video trigger in a solid state motion analysis system

  • US 5,034,811 A
  • Filed: 04/04/1990
  • Issued: 07/23/1991
  • Est. Priority Date: 04/04/1990
  • Status: Expired due to Fees
First Claim
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1. A solid state motion analysis system comprising:

  • solid state imager means for capturing an image of an event and for producing an image frame signal having a variable image characteristic, wherein said imager means is selectively operable at different image frame rates up to several hundred frames per second;

    means for comparing selected image frame signals produced by said imager means to determine a change in the value of said image characteristic between said selected image frame signals;

    means for producing a trigger signal in response to a change in image characteristic determined by said comparing means; and

    solid state memory means for storing a plurality of image frame signals produced by said imager means, wherein said trigger signal starts or stops storage of image frame signals in said memory means, such that said imager means frame rate is unaffected by said trigger signal.

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