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System and method for decoding optical codes read by an imager-based optical code reader

  • US 7,097,102 B2
  • Filed: 07/29/2004
  • Issued: 08/29/2006
  • Est. Priority Date: 07/29/2004
  • Status: Active Grant
First Claim
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1. An optical code reader system comprising:

  • an imaging module for imaging at least one target, said imaging including acquiring and processing a constant stream of image data during a series of at least two frames;

    at least one storage medium for storing image data acquired during respective frames of the series of at least two frames; and

    a processor assembly including at least one processor for receiving an actuation signal during Frame(N) of the series of at least two frames, said receipt of said actuation signal indicating initiation of a read operation, the processor assembly comprising;

    a frame grabber module executable on the at least one processor for retrieving at least a portion of image data acquired during a frame of the series of at least two frames that is prior to Frame (N) from the at least one storage medium; and

    a decoder module executable on the at least one processor for performing a decode operation on the retrieved image data.

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