Arrangement for and method of assessing a cause of poor electro-optical reading performance by displaying an image of a symbol that was poorly read

Patent metadata

Field	Value
Publication number	US-9495564-B2
Application number	US-201514679590-A
Country	US
Kind code	B2
Filing date	Apr 6, 2015
Priority date	Apr 6, 2015
Publication date	Nov 15, 2016
Grant date	Nov 15, 2016

Abstract

A reader electro-optically reads symbols by image capture to obtain read data, and a controller processes symbol images of the symbols captured by the reader, and decodes the read data to obtain symbol data indicative of the associated products. The controller also collects time-to-decode metadata by determining the decode time periods that are taken for the symbol data to be successfully decoded, associates the decode time periods with the symbol images, stores the longest decode time period and its associated symbol image, and displays the stored symbol image associated with the stored longest decode time period to determine a cause of the reading performance of the reader.

First claim

The invention claimed is:

1. An arrangement for assessing reading performance during reading of coded symbols associated with products, comprising:
a reader for electro-optically reading the symbols by image capture to obtain read data; and
a controller for processing symbol images of the symbols captured by the reader, for decoding the read data to obtain symbol data indicative of the associated products, for collecting time-to-decode metadata by determining the decode time periods that are taken for the symbol data to be successfully decoded, for associating the decode time periods with the symbol images, for storing the longest decode time period and its associated symbol image, and for displaying the stored symbol image associated with the stored longest decode time period to determine a cause of the reading performance.

2. The arrangement of claim 1 , wherein the controller is operative for determining each decode time period by determining a start time when reading is initiated, and an end time when reading is completed upon a successful decode.

3. The arrangement of claim 1 , wherein the controller is also operative for associating the symbol data with the decode time periods and the symbol images, for storing the symbol data with the longest decode time period and its associated symbol image, and for displaying the stored symbol data with the stored symbol image and the stored longest decode time period.

4. The arrangement of claim 1 , wherein the controller is operative for recognizing and classifying the symbols into different symbologies, for storing the longest decode time period and its associated symbol image for each symbology, and for displaying the stored symbol image associated with the stored longest decode time period for each symbology.

5. The arrangement of claim 1 , and a host server for querying the controller to retrieve the stored symbol image associated with the stored longest decode time period.

6. The arrangement of claim 1 , wherein the reader captures an individual symbol image as a plurality of sub-images over a plurality of fields of view, and wherein the controller is operative for processing the symbol images by combining and formatting the sub-images.

7. The arrangement of claim 1 , wherein the controller is operative for automatically refreshing the longest decode time period.

8. The arrangement of claim 1 , wherein the reader is a bi-optical reader having dual windows through which the symbol images are captured.

9. A method of assessing reading performance during reading of coded symbols associated with products, comprising:
electro-optically reading the symbols by image capture to obtain read data;
processing symbol images of the symbols captured by the reader;
decoding the read data to obtain symbol data indicative of the associated products;
collecting time-to-decode metadata by determining the decode time periods that are taken for the symbol data to be successfully decoded;
associating the decode time periods with the symbol images;
storing the longest decode time period and its associated symbol image; and
displaying the stored symbol image associated with the stored longest decode time period to determine a cause of the reading performance.

10. The method of claim 9 , wherein the determining of each decode time period is performed by determining a start time when reading is initiated, and an end time when reading is completed upon a successful decode.

11. The method of claim 9 , and also associating the symbol data with the decode time periods and the symbol images, and also storing the symbol data with the longest decode time period and its associated symbol image, and also displaying the stored symbol data with the stored symbol image and the stored longest decode time period.

12. The method of claim 9 , and recognizing and classifying the symbols into different symbologies, and storing the longest decode time period and its associated symbol image for each symbology, and displaying the stored symbol image associated with the stored longest decode time period for each symbology.

13. The method of claim 9 , and retrieving the stored symbol image associated with the stored longest decode time period.

14. The method of claim 9 , wherein the reading is performed by capturing an individual symbol image as a plurality of sub-images over a plurality of fields of view, and wherein the processing of the symbol images is performed by combining and formatting the sub-images.

15. The method of claim 9 , and automatically refreshing the longest decode time period.

16. The method of claim 9 , wherein the reading is performed by capturing the symbol images through dual windows of a bi-optical reader.

Assignees

• Symbol Technologies Inc
• Symbol Technologies Llc

Inventors

• Madej Dariusz
• Bhella Kenneth S

Classifications

• G06K7/1417

  2D bar codes · CPC title

• G06K7/0095 Primary

  Testing the sensing arrangement, e.g. testing if a magnetic card reader, bar code reader, RFID interrogator or smart card reader functions properly (testing of electrical circuits G01R31/28) · CPC title

• G06K7/10821

  further details of bar or optical code scanning devices · CPC title

• G06K7/1465

  using several successive scans of the optical code · CPC title

• G06Q20/208

  Input by product or record sensing, e.g. weighing or scanner processing · CPC title