公开(公告)号：US11619539B2

公开(公告)日：2023-04-04

申请号：US16945536

申请日：2020-07-31

Applicant: ZEBRA TECHNOLOGIES CORPORATION

Inventor： Christopher J. Fjellstad ,  William Doering

IPC: G01G19/52 ,  G01G21/28 ,  G06K7/14

Abstract: Methods of detecting scan avoidance events during decode sessions are disclosed herein. An example method includes during a timeout period at one or more processors of the symbology scanner, identifying and decoding a transaction affecting indicia on an object in one or more images to obtain a transaction affecting payload; during the timeout period at the one or more processors, identifying one or more visual features in the one or more images; and in response to identifying a non-transaction affecting indicia associated with the one or more visual features, and failing to identify or decode the transaction affecting indicia, determining a potential scan avoidance attempt and generating a scan avoidance alarm signal.

公开(公告)号：US20220034706A1

公开(公告)日：2022-02-03

申请号：US16945536

申请日：2020-07-31

Applicant: ZEBRA TECHNOLOGIES CORPORATION

Inventor： Christopher J. Fjellstad ,  William Doering

IPC: G01G19/52 ,  G06K7/14 ,  G01G21/28

Abstract: Methods of detecting scan avoidance events during decode sessions are disclosed herein. An example method includes during a timeout period at one or more processors of the symbology scanner, identifying and decoding a transaction affecting indicia on an object in one or more images to obtain a transaction affecting payload; during the timeout period at the one or more processors, identifying one or more visual features in the one or more images; and in response to identifying a non-transaction affecting indicia associated with the one or more visual features, and failing to identify or decode the transaction affecting indicia, determining a potential scan avoidance attempt and generating a scan avoidance alarm signal.