Minimizing laser persistence on two-dimensional image sensors
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United States of America Patent
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Apr 10, 2018
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app pub date -
Aug 16, 2016
filing date -
Aug 16, 2016
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Abstract
Systems and methods for minimizing laser persistence are provided. In one implementation, a timing circuit for controlling a barcode reader is provided. The timing circuit comprises a shutter control circuit configured to control an electronic shutter function of an image sensor and a laser control circuit configured to control the activation of a reference laser. When activated, the reference laser directs a laser beam to an approximate position of a field of view of the image sensor. The activation of the reference laser includes a delay to minimize laser persistence on an image captured by the image sensor.
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