Backlit display detection and radio signature recognition

• US 10,152,664 B2
• Filed: 02/12/2018
• Issued: 12/11/2018
• Est. Priority Date: 10/27/2016
• Status: Active Grant

• Current Assignee: Hand Held Products Incorporated (Honeywell International Inc.)
• Original Assignee: Hand Held Products Incorporated (Honeywell International Inc.)
• Inventors: Kearney, Sean Philip
• Primary Examiner(s): Labaze, Edwyn
• Application Number:
  US15/893,787
• Publication Number:
  US 20180181852A1
• Time in Patent Office: 302 Days
• Field of Search: 235375, 23546201, 23546211, 235487, 23546241
• CPC Class Codes: G06K 19/06028 using bar codes
• CPC Class Codes: G06K 19/06112 the marking being simulated using a light source, e.g. a barcode shown on a display or a laser beam with time-varying intensity profile
• CPC Class Codes: G06K 7/10544 by scanning of the records by radiation in the optical part of the electromagnetic spectrum
• CPC Class Codes: G06K 7/10732 Light sources
• 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 7/10811 Focalisation
• CPC Class Codes: G06K 7/10881 constructional details of hand-held scanners
• CPC Class Codes: G06K 7/1413 1D bar codes
• CPC Class Codes: G06K 7/1443 locating of the code in an image
• CPC Class Codes: H04W 88/02 Terminal devices

Abstract

A method of capturing an image of a barcode from a backlit display device includes monitoring radio signals proximal to a device operable for scanning barcodes, with at least one coil, wire, and/or antenna disposed within the device operable for scanning barcodes; detecting radio interference caused by a backlit display device proximal to the device operable for scanning barcodes; interpreting a pattern of the radio interference to determine one or more technical characteristics of the backlit display device; using the determined technical characteristics of the backlit display device for automatically adjusting scanning settings of the device operable for scanning barcodes; and capturing an image of a barcode displayed on the backlit display device.

Claims

1. A barcode scanner for capturing an image of a barcode from a backlit display device, comprising:

a capturing system operative for capturing an image;

at least one antenna, wire, and/or coil configured for detecting radio signals proximal to the barcode scanner;

wherein the barcode scanner is configured for;

detecting radio interference produced by the backlit display device;

interpreting a signal pattern of the detected radio interference;

correlating the signal pattern to one or more technical characteristics of the backlit display device;

automatically selecting one or more scanning settings based on the correlated technical characteristics of the backlit display device;

detecting a displayed image of a barcode on the backlit display device with the automatically selected one or more scanning settings; and

capturing the detected displayed image with the capturing system.

2. The barcode scanner of claim 1, wherein the one or more technical characteristics of the backlit display device comprise display size, brightness, contrast, display glass type, reflective trimmings, and/or image display settings.

3. The barcode scanner of claim 1, wherein the selecting one or more scanning settings comprises adjusting exposure, illumination intensity, and/or a code-finder pattern to predetermined settings.

4. The barcode scanner of claim 1, wherein the backlit display device comprises a mobile phone, a tablet, or a palmtop computer.

5. A system for communicating information displayed on a mobile device, the system comprising:

an interfacing device configured for determining a type of a mobile device based on emitted radio signals;

an indicia reading terminal communicatively coupled to the interfacing device, wherein the indicia reading terminal is configured for;

adjusting one or more scanning parameters to preselected values based on the determined type of the mobile device; and

capturing an image of a computer-readable code displayed on the mobile device placed in front of the indicia reading terminal.

6. The system of claim 5, wherein the indicia reading terminal is configured for collecting and storing data pertaining to the determined type of the mobile device in a remote database.

7. The system of claim 5, wherein the indicia reading terminal is configured for transmitting the obtained computer-readable code information to an information receiving device disposed outside the interfacing device.

8. The system of claim 5, wherein the mobile device comprises an emissive display.

9. The system of claim 8, wherein the emissive display comprises a backlit display.

10. The system of claim 5, wherein the computer-readable code comprises a barcode.

11. A barcode scanner, comprising:

a capturing system operative for capturing an image of a barcode from a digital device;

at least one antenna, wire, and/or coil configured for monitoring radio signals proximal to the barcode scanner;

wherein the barcode scanner is configured for;

detecting radio interference produced by the digital device proximal to the barcode scanner;

coupling and amplifying the detected radio interference signals with the at least one antenna, wire, and/or coil;

adjusting one or more scanning parameters based on a pattern of the detected radio interference; and

capturing an image of a barcode displayed on the digital device with the capturing system.

12. The barcode scanner of claim 11, wherein the barcode scanner is configured for correlating the pattern of the detected radio interference to one or more technical characteristics of the digital device, the one or more technical characteristics comprising display size, brightness, contrast, display glass type, reflective trimmings, and/or image display settings.

13. The barcode scanner of claim 11, wherein adjusting one or more scanning parameters comprises adjusting exposure, illumination intensity, and/or a code-finder pattern to predetermined settings.

14. The barcode scanner of claim 11, wherein the at least one coil, wire, and/or antenna is configured to be in a strong resonance with radio frequencies emitted by the digital device.

15. The barcode scanner of claim 11, wherein detecting radio interference comprises detecting radio interference from a backlit display device.

16. The barcode scanner of claim 15, wherein the backlit display device comprises a mobile phone, a tablet, or a palmtop computer.

17. The barcode scanner of claim 11, wherein the digital device comprises an emissive display.

18. The barcode scanner of claim 17, wherein the emissive display comprises a backlit display.

19. The barcode scanner of claim 18, wherein the barcode scanner is configured for detecting a displayed image of a barcode on the backlit display.