BARCODE READER

摘要

A barcode reader may perform image processing functions to generate distinct image data records from the frame of image data of a barcode, select an image data record from the distinct image data records and decode the selected image data record. Each image data record may be generated by applying a distinct image processing function to the frame of image data. The barcode reader may capture multiple frames of image data in sequence based on image capture parameters. At least one of the multiple frames of image data may be captured with a distinct parameter value. The image capture parameters may include an exposure setting, a gain setting, a resolution setting, and/or an illumination setting.

主权项

1. A barcode reader, comprising:
a lens for focusing an image of a barcode onto a two-dimensional array of photosensitive diodes; image read-out circuitry coupled to the two-dimensional array of photosensitive diodes and configured to generate a frame of image data, wherein the frame of image data is a sequence of values, each value representing intensity of illumination focused onto one of the photosensitive diodes; an image processing circuit configured to receive the sequence of values of the frame of image data and perform image processing functions to generate at least two distinct image data records from the frame of image data; non-transient computer readable media for storing the at least two distinct image data records; and a processor configured to select an image data record from the at least two distinct image data records and decode the selected image data record.