ADAPTIVE FILTERING OF A LOAD CELL OF A POINT-OF-SALE (POS) DEVICE

• US 20190094065A1
• Filed: 11/29/2018
• Published: 03/28/2019
• Est. Priority Date: 05/15/2014
• Status: Active Grant

• Current Assignee: NCR Voyix Corporation
• Original Assignee: NCR Corporation (NCR Voyix Corporation)
• Inventors: Heske, III, Theodore
• Granted Patent: US 10,782,183 B2
• Time in Patent Office: Days
• CPC Class Codes: G01G 19/4144 for controlling weight of goods in commercial establishments, e.g. supermarket, P.O.S. systems
• CPC Class Codes: G01G 23/01 Testing or calibrating of weighing apparatus
• CPC Class Codes: G01G 23/10 by electric or magnetic means

Abstract

A Point-Of-Sale (POS) device detects vibrations produced from equipment in its operational environment. The vibrations are identified and one or more filters produced to remove the vibrations when the POS device is used to improve the accuracy of the POS device.

Claims

1-16. -16. (canceled)

17. An Point-Of-Sale (POS) device, comprising:

a processor;

a weigh plate;

a spectra analyzer adapted and configured to;

i) execute on the processor and ii) produce a frequency spectrum for a vibrational frequency; and

a notch filter adapted and configured to i) execute on the processor and ii) remove the vibrational frequency from signals of a load cell when the vibration frequency is present in the signals by using the frequency spectrum and the vibrational frequency.

18. The POS device of claim 17, wherein POS device is a scale.

19. The POS device of claim 17, wherein the POS device is an integrated scanner and scale.

20. The POS device of claim 17, wherein the POS device is integrated into a checkout station having electrical and mechanical equipment and the vibrational frequency associated with operation of the electrical and mechanical equipment.