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PRETRIGGER AND POST-TRIGGER ACQUISITION FOR NO DEAD TIME ACQUISITION SYSTEM

  • US 20090228226A1
  • Filed: 03/04/2008
  • Published: 09/10/2009
  • Est. Priority Date: 03/04/2008
  • Status: Active Grant
First Claim
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1. A no dead time acquisition system comprising:

  • means for recognizing all trigger events within an electrical signal being monitored to produce a trigger signal;

    means for delaying a digitized signal representing the electrical signal, the delaying means including a buffer having a variable record length for delaying the digitized signal by an amount equal to a desired pre-trigger interval, the desired pre-trigger interval defining the variable record length; and

    means for drawing a waveform for the digitized signal from the delaying means in real time in response to the trigger signal such that the waveform represents the electrical signal at the desired pre-trigger interval prior to a first trigger event within the trigger signal.

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