Indicia reading apparatus having image sensor array

• US 8,727,223 B2
• Filed: 01/07/2013
• Issued: 05/20/2014
• Est. Priority Date: 06/09/2006
• Status: Active Grant

• Current Assignee: Hand Held Products Incorporated (Honeywell International Inc.)
• Original Assignee: Hand Held Products Incorporated (Honeywell International Inc.)
• Inventors: Wang, Ynjiun P.
• Primary Examiner(s): TRAIL, ALLYSON NEEL
• Application Number:
  US13/735,364
• Publication Number:
  US 20130221104A1
• Time in Patent Office: 498 Days
• Field of Search: 235/462.41, 235/462.46, 235/472.01
• US Class Current: 235/462.11
• CPC Class Codes: G06K 7/10722 Photodetector array or CCD scanning
• CPC Class Codes: G06K 7/10742 including a diffuser for diffusing the light from the light source to create substantially uniform illumination of the target record carrier
• CPC Class Codes: G06K 7/10881 constructional details of hand-held scanners

Abstract

There is provided in one embodiment an indicia reading apparatus having an image sensor array. The indicia reading apparatus can have a first operator selectable configuration and a second operator selectable configuration.

Claims

1. An indicia reading apparatus comprising:

an image sensor array having a plurality of pixels, the image sensor array having a color filter array;

an image frame memory that retains pixel values making up a frame of image data, wherein the indicia reading apparatus is configured to read out image signals from said image sensor array and to digitize such signals for output of image data to the image frame memory;

an operator selectable configuration;

wherein the indicia reading apparatus with the operator selectable configuration active applies a mean filter subsequently to a trigger signal activation so that image data output by the indicia reading apparatus is subject to mean filtering wherein blocks of pixel values corresponding to pixels of the plurality of pixels are averaged for output of filtered image data;

wherein the indicia reading apparatus is operative for processing for attempting to decode a decodable indicia using the filtered image data.

2. The indicia reading apparatus of claim 1, wherein the indicia reading apparatus with the operator selectable configuration active is restricted from applying other than a common filter to frames of image data output for processing for attempting to decode a decodable indicia and wherein the indicia reading apparatus with a second operator selectable configuration active is capable of applying different filters to frames of image data output for processing for attempting to decode a decodable indicia, wherein the operator selectable configuration and the second operator selectable configuration are selectable with use of displayed actuators.

3. The indicia reading apparatus of claim 2, wherein the different filters are applied according a predetermined list.

4. The indicia reading apparatus of claim 2, wherein with the second operator selectable configuration active the indicia reading apparatus applies a filter in response to a sensed condition.

5. The indicia reading apparatus of claim 2, wherein with the second operator selectable configuration active the indicia reading apparatus applies a filter in response to a sensed condition determined by processing a previous frame of image data.

6. The indicia reading apparatus of claim 2, wherein with the second operator selectable configuration active the indicia reading apparatus applies a LoG filter to a certain frame of the frames of image data and a Gaussian filter to another frame of the frames of image data.

7. The indicia reading apparatus of claim 2, wherein with the second operator selectable configuration active the indicia reading apparatus applies a Laplacian filter to a certain frame of the frames of image data and a Gaussian filter to another frame of the frames of image data.

8. The indicia reading apparatus of claim 2, wherein with the second operator selectable configuration active the indicia reading apparatus applies a Laplacian filter to a certain frame of the frames of image data and an LoG filter to another frame of the frames of image data.

9. The indicia reading apparatus of claim 1, wherein the operator selectable configuration is selectable with use of displayed actuators.

10. The indicia reading apparatus of claim 1, wherein the color filter array is a Bayer pattern filter.

11. The indicia reading apparatus of claim 1, wherein the indicia reading apparatus includes a manually actuated trigger for activating the trigger signal.

12. The indicia reading apparatus of claim 1, wherein the indicia reading apparatus includes a hand held housing in which the image sensor array is disposed.

13. The indicia reading apparatus of claim 1, wherein the processing includes attempting to decode a barcode.

14. The indicia reading apparatus of claim 1, wherein the processing includes attempting to decode employing optical character recognition processing.

15. The indicia reading apparatus of claim 1, wherein an integrated circuit comprising the image sensor array applies the mean filter.

16. The indicia reading apparatus of claim 1, wherein the mean filter is a software filter applied by a programmable microprocessor integrated circuit that is capable of addressing the image frame memory.

17. The indicia reading apparatus of claim 1, wherein the indicia reading apparatus includes a second operator selectable configuration, wherein the indicia reading apparatus is operative so that with the second operator selectable configuration active the mean filter is not applied.