METHOD AND APPARATUS FOR READING OPTICAL INDICIA
First Claim
Patent Images
1. A method of reading optical indicia comprising:
- generating calibration light when a measured intensity of ambient light is lower than a predetermined value;
measuring an intensity of the calibration light reflected into a detector system;
determining an optimum exposure level for an imaging system based on the measured intensity of the calibration light reflected into the detector system;
generating an illumination light with an illumination system; and
capturing an image of the optical indicia with the imaging system subjecting to the optimum exposure level.
4 Assignments
0 Petitions
Accused Products
Abstract
A method and apparatus for reading optical indicia. The method includes generating calibration light, and measuring an intensity of the calibration light reflected into a detector system. The method also includes determining an optimum exposure level for the imaging system based on the measured intensity of the calibration light reflected into the detector system, and generating an illumination light with an illumination system. In addition, the method includes capturing an image of the optical indicia with the imaging system subjecting to the optimum exposure level.
9 Citations
33 Claims
-
1. A method of reading optical indicia comprising:
-
generating calibration light when a measured intensity of ambient light is lower than a predetermined value; measuring an intensity of the calibration light reflected into a detector system; determining an optimum exposure level for an imaging system based on the measured intensity of the calibration light reflected into the detector system; generating an illumination light with an illumination system; and capturing an image of the optical indicia with the imaging system subjecting to the optimum exposure level. - View Dependent Claims (2, 3, 4, 5, 6, 7, 8, 9, 10)
-
-
11. A method of reading optical indicia with comprising:
-
generating calibration light; measuring an intensity of the calibration light reflected into a detector system; determining an optimum exposure level for an imaging system based on the measured intensity of the calibration light reflected into the detector system; generating an illumination light with an illumination system; and capturing an image of the optical indicia with the imaging system subjecting to the optimum exposure level. - View Dependent Claims (12, 13, 14, 15)
-
-
16. An imaging scanner for reading an optical indicia comprising:
-
an illumination system having at lest two operation modes, wherein the illumination system in the first operation mode generates a calibration light, and the illumination system in the second operation mode generates an illumination light; a detector system operable to measure intensity of the calibration light reflected into the detector system; and an imaging system including an imaging sensor and having a first lens system defining a first field of view, wherein the imaging system is configured to capture an image of the optical indicia with an optimum exposure level that is determined based on the measured intensity of the calibration light reflected into the detector system. - View Dependent Claims (17, 18, 19, 20, 21, 22, 23, 24, 25, 26, 27, 28)
-
-
29. A method of reading optical indicia comprising:
-
generating illumination light with an illumination system; initiating a process to capture an image of the optical indicia with an imaging system; measuring an intensity of light reflected into a detector system including a photodetector; integrating an electrical signal from an output of the photodetector; and ending the capturing the image after the integration of the electrical signal from the output of the photodetector reaches a predetermined value. - View Dependent Claims (30)
-
-
31. An imaging scanner for reading an optical indicia comprising:
-
an illumination system operable to generate a pulsed illumination light; an imaging system including an imaging sensor and having a first lens system defining a first field of view; a detector system including a photodetector and an integrator receiving an electrical signal from an output of the photodetector; and wherein the imaging system operable to initiate capturing an image of the optical indicia and operable to end capturing the image after the integration of the electrical signal from the output of the photodetector reaches a predetermined value. - View Dependent Claims (32, 33)
-
Specification