Data reader and methods for imaging targets exposed to high intensity illumination
AssigneeDatalogic Scanning, Inc.
InventorsAlexander M. McQueen, Randy J. Turkal
Life of this patent
Estimating the term…
Loading patent…
AssigneeDatalogic Scanning, Inc.
InventorsAlexander M. McQueen, Randy J. Turkal
Estimating the term…
A data reader such as for example an imaging reader with a CCD or CMOS imager or the like, that acquires an image of an item to be read. A certain type of sensor has been found to exhibit different outputs depending upon the light intensity level: (1) standard output whereby the sensor outputs a signal corresponding to the image collected and (2) inverted output whereby the sensor outputs an inverted signal when the light intensity highly saturates the sensor. Taking advantage of this inverted output, systems and methods are then employed by the data reader to convert or otherwise re-invert this inverted signal in order to read an optical code that, for example, might otherwise have been above the upper exposure limit of the sensor/reader and thus not decodable.
A system for data reading of an item, comprising:
A system for data reading of an item, comprising:
A method of operating an imaging system including a sensor wherein the sensor is operative to generate an inverted output signal when the sensor is subjected to high intensity illumination above a certain operating range, comprising the steps of
A method of image processing comprising the steps of
A method of image processing comprising the steps of
A method of operating an imaging system including a sensor wherein the sensor is operative to generate a standard output signal when the sensor is subjected to illumination intensity in a normal operating range and operative to generate an inverted output signal that is inverted relative to the standard output signal when the sensor is subjected to high intensity illumination above a certain operating range, comprising the steps of
Dependencies are inferred from the claim text.