Waking system in barcode scanner

• US 10,387,699 B2
• Filed: 01/08/2018
• Issued: 08/20/2019
• Est. Priority Date: 01/12/2017
• Status: Active Grant

• Current Assignee: Hand Held Products Incorporated (Honeywell International Inc.)
• Original Assignee: Hand Held Products Incorporated (Honeywell International Inc.)
• Inventors: Liu, Li, Zhang, QianAn, Huang, LiuXin, Liu, Zhongqi
• Primary Examiner(s): Frech, Karl D
• Application Number:
  US15/864,474
• Publication Number:
  US 20180196979A1
• Time in Patent Office: 589 Days
• Field of Search: 23546211, 23546221, 23546223, 23546225, 23546226, 2354623, 23546231
• 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 7/10722 Photodetector array or CCD scanning
• CPC Class Codes: G06K 7/1413 1D bar codes
• CPC Class Codes: G06K 7/1417 2D bar codes
• CPC Class Codes: G06K 7/1443 locating of the code in an image

Abstract

A method of actuating a barcode reading platform by combining omnidirectional laser scanning and area-imaging approaches to trigger an imaging assembly in response to sensing laser pulses reflected and/or scattered by surrounding objects is disclosed. Specifically, a method of capturing an image of a barcode with a barcode scanner focuses on actuating a laser scanning system, illuminating an object with optical laser beam pulses, detecting laser beams reflected and/or scattered by the object, transmitting and analyzing a signal indicative of the detected laser beams to determine a presence of the object, and actuating a barcode reading platform.

Claims

1. A method of waking an area-imaging assembly in a bioptic barcode scanner device, the method comprising:

aligning a scanning pattern of an omnidirectional laser scanning assembly disposed within the bioptic barcode scanner device with a field of view of the area-imaging assembly disposed within the bioptic barcode scanner device;

generating a laser pulse using the omnidirectional laser scanning assembly;

measuring a return signal of the laser pulse reflected by an object proximal to the bioptic barcode scanner device;

identifying the object proximal to the bioptic barcode scanner device by analyzing the return signal, wherein analyzing the return signal includes detecting movement of the object proximal to the bioptic barcode scanner device; and

waking the area-imaging assembly.

2. The method according to claim 1, wherein identifying the object includes identifying a one-dimensional barcode on the object.

3. The method according to claim 1, wherein identifying the object includes identifying a two-dimensional barcode on the object.

4. A method of actuating a barcode reading platform, the method comprising:

scanning an area proximal to the barcode reading platform for an object using laser pulses produced by a laser scanning system;

automatically analyzing laser pulse feedback produced by laser scanning of an object present in the area proximal to the barcode reading platform;

comparing results of the laser pulse feedback analysis to a predetermined threshold;

detecting, based on the comparison, a presence of the object;

triggering a barcode imaging system in response to the detection of the presence of the object, wherein the laser scanning system and the barcode imaging system are triggered simultaneously; and

imaging a barcode using the barcode reading platform.

5. The method according to claim 4, wherein the barcode imaging system comprises an area-imaging platform.

6. The method according to claim 4, further including counting a number of the produced laser pulses, and triggering the barcode imaging system when a total laser pulse count exceeds a predetermined total pulse threshold value.

7. The method according to claim 4, further including counting a number of negative laser pulses, and triggering the barcode imaging system when a negative laser pulse count exceeds a predetermined negative pulse threshold value.

8. The method according to claim 4, further including counting time over which laser pulses are produced, and triggering the barcode imaging system when a negative laser pulse time exceeds a predetermined time threshold value.

9. The method according to claim 8, wherein the predetermined time threshold value comprises 50% of total time.

10. The method according to claim 4, wherein using the laser pulses produced by the laser scanning system includes using laser pulses produced by an omnidirectional laser system.

11. A method of capturing an image of a barcode with a hybrid scanner device, the method comprising:

actuating a laser scanning system of the hybrid scanner device;

illuminating an object with a pulse of an optical laser beam generated by a laser scanning assembly disposed within the hybrid scanner device;

detecting one or more laser beams reflected and/or scattered by the object;

transmitting a signal indicative of the detected one or more reflected and/or scattered laser beams;

analyzing the transmitted signal to determine a presence of the object by comparing a level of the one or more reflected and/or scattered laser beams with a predetermined threshold;

in response to determining the presence of the object, automatically actuating an imaging system of the hybrid scanner device, wherein the laser scanning system and the imaging system are actuated simultaneously; and

capturing the image of the barcode using the actuated imaging system of the hybrid scanner device.

12. The method according to claim 11, further including digitizing the captured image of the barcode to create a digitized image.

13. The method according to claim 12, further including transmitting the digitized image of the barcode to a processing assembly.

14. The method according to claim 13, further including decoding the digitized image.