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Apparatus comprising image sensor array and illumination control

  • US 8,628,013 B2
  • Filed: 12/13/2011
  • Issued: 01/14/2014
  • Est. Priority Date: 12/13/2011
  • Status: Active Grant
First Claim
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1. An indicia reading apparatus comprising:

  • an illumination assembly for projection of an illumination pattern, the illumination assembly having one or more light source;

    an imaging assembly including an image sensor array and an imaging lens assembly for focusing an image of a target onto the image sensor array;

    wherein the indicia reading apparatus is operative in accordance with a first configuration;

    wherein the indicia reading apparatus with the first configuration active is operative so that responsively to the trigger signal activation the indicia reading apparatus captures a first frame and a second frame, the second frame being captured subsequent to the first frame, wherein the indicia reading apparatus with the first configuration active is further operative so that the illumination assembly is de-energized during an exposure period of the first frame, de-energized during an exposure period of the second frame, and energized during a period intermediate of an exposure period of the first frame and an exposure period of the second frame, wherein the indicia reading apparatus with the first configuration active is further operative so that the indicia reading apparatus attempts to decode a decodable indicia by processing of each of the first frame and the second frame, wherein the indicia reading apparatus is operative so that for subsequent illumination periods that are intermediate of exposure periods, an energy level of emitted light for projection of the illumination pattern is increased, wherein the indicia reading apparatus is further operative so that the indicia reading apparatus processes image data captured by the indicia reading apparatus for detection of a mode change of a target terminal.

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