Systems and Methods for Enhancing Trainable Optical Character Recognition (OCR) Performance

    公开(公告)号:US20230042611A1

    公开(公告)日:2023-02-09

    申请号:US17395168

    申请日:2021-08-05

    Abstract: Systems and methods for enhancing trainable optical character recognition (OCR) performance are disclosed herein. An example method includes receiving, at an application executing on a user computing device communicatively coupled to a machine vision camera, an image captured by the machine vision camera, the image including an indicia encoding a payload and a character string. The example method also includes identifying the indicia and the character string; decoding the indicia to determine the payload; and applying an optical character recognition (OCR) algorithm to the image to interpret the character string and identify an unrecognized character within the character string. The example method also includes comparing the payload to the character string to validate the unrecognized character as corresponding to a known character included within the payload; and responsive to validating the unrecognized character, adding the unrecognized character to a font library referenced by the OCR algorithm.

    FLICKER MITIGATION FOR MULTIPLE INTERSPERSED ILLUMINATION SYSTEMS

    公开(公告)号:US20210133407A1

    公开(公告)日:2021-05-06

    申请号:US16676398

    申请日:2019-11-06

    Abstract: A method of activating an illumination assembly within a symbology reader is provided, the illumination assembly having a first illumination source and a second illumination source, the symbology reader having an imaging sensor configured to operate at a predetermined framerate where each frame includes an exposure period over which the imaging sensor is active to capture image data and a non-exposure period over which the imaging sensor is not active to capture image data, the method comprising: during a first frame, activating the first illumination source during at least a portion of the respective exposure period and activating the second illumination source over at least a portion of the respective non-exposure period; and during a second frame, activating the second illumination source during at least a portion of the respective exposure period and activating the first illumination source over at least a portion of the respective non-exposure period.

    Flicker mitigation for multiple interspersed illumination systems

    公开(公告)号:US12217123B2

    公开(公告)日:2025-02-04

    申请号:US18100304

    申请日:2023-01-23

    Abstract: A method of activating an illumination assembly within a symbology reader is provided, the illumination assembly having a first illumination source and a second illumination source, the symbology reader having an imaging sensor configured to operate at a predetermined framerate where each frame includes an exposure period over which the imaging sensor is active to capture image data and a non-exposure period over which the imaging sensor is not active to capture image data, the method comprising: during a first frame, activating the first illumination source during at least a portion of the respective exposure period and activating the second illumination source over at least a portion of the respective non-exposure period; and during a second frame, activating the second illumination source during at least a portion of the respective exposure period and activating the first illumination source over at least a portion of the respective non-exposure period.

    Tracking a barcode scanner using a BLE beacon receiver contained within a reader

    公开(公告)号:US12045688B2

    公开(公告)日:2024-07-23

    申请号:US17989204

    申请日:2022-11-17

    CPC classification number: G06K7/1413

    Abstract: A system includes a reader having a first Bluetooth Low Energy (BLE) device and a barcode scanner having a second BLE device. The first BLE device includes a first advertiser and a first listener, and the second BLE device includes a second advertiser and a second listener. The first advertiser of the reader is configured to broadcast a first beacon signal. The barcode scanner is configured to: detect, by the second listener, the first beacon signal and in response to detecting the first beacon signal, generate an alarm.

    Charging priority between multiple devices connected to a charging cradle

    公开(公告)号:US12034331B2

    公开(公告)日:2024-07-09

    申请号:US17235522

    申请日:2021-04-20

    CPC classification number: H02J7/345 G06K7/10207 G06K7/10881

    Abstract: An example method for charging a barcode reader that can be implemented by a charging cradle includes: detecting that the barcode reader is coupled to a first interface of the charging cradle for the barcode reader; detecting that a spare battery of the barcode reader is coupled to a second interface of the charging cradle; receiving, via a connection between the charging cradle and a port of a host power source, an indication of a magnitude of an input current that the host power source is capable of delivering to the charging cradle over the connection; comparing the magnitude of the input current to a threshold magnitude; responsive to the comparing, determining a charging order in which to charge the barcode reader and the spare battery using the input current from the host power source; and charging the barcode reader and the spare battery in accordance with the charging order.

    Charging Priority Between Multiple Devices Connected to a Charging Cradle

    公开(公告)号:US20220337079A1

    公开(公告)日:2022-10-20

    申请号:US17235522

    申请日:2021-04-20

    Abstract: An example method for charging a barcode reader that can be implemented by a charging cradle includes: detecting that the barcode reader is coupled to a first interface of the charging cradle for the barcode reader; detecting that a spare battery of the barcode reader is coupled to a second interface of the charging cradle; receiving, via a connection between the charging cradle and a port of a host power source, an indication of a magnitude of an input current that the host power source is capable of delivering to the charging cradle over the connection; comparing the magnitude of the input current to a threshold magnitude; responsive to the comparing, determining a charging order in which to charge the barcode reader and the spare battery using the input current from the host power source; and charging the barcode reader and the spare battery in accordance with the charging order.

    Charging Priority Between Multiple Devices Connected to a Charging Cradle

    公开(公告)号:US20240364132A1

    公开(公告)日:2024-10-31

    申请号:US18766384

    申请日:2024-07-08

    CPC classification number: H02J7/345 G06K7/10207 G06K7/10881

    Abstract: An example method for charging a first and a second battery that can be implemented by a charging apparatus includes: detecting that the first battery is coupled to a first interface of the charging apparatus for the first battery; detecting that a second battery of the first battery is coupled to a second interface of the charging apparatus; receiving, via a connection between the charging apparatus and a port of a host power source, an indication of a magnitude of an input current that the host power source is capable of delivering to the charging apparatus over the connection; comparing the magnitude of the input current to a threshold magnitude; responsive to the comparing, determining a charging order in which to charge the first battery and the second battery using the input current from the host power source; and charging the first battery and the second battery in accordance with the charging order.

    Tracking A Barcode Scanner Using A BLE Beacon Receiver Contained Within a Reader

    公开(公告)号:US20240169170A1

    公开(公告)日:2024-05-23

    申请号:US17989204

    申请日:2022-11-17

    CPC classification number: G06K7/1413

    Abstract: A system includes a reader having a first Bluetooth Low Energy (BLE) device and a barcode scanner having a second BLE device. The first BLE device includes a first advertiser and a first listener, and the second BLE device includes a second advertiser and a second listener. The first advertiser of the reader is configured to broadcast a first beacon signal. The barcode scanner is configured to: detect, by the second listener, the first beacon signal and in response to detecting the first beacon signal, generate an alarm.

    SYSTEMS FOR ALTERNATIVE ILLUMINATION IN GLOBAL SHUTTER BARCODE READERS

    公开(公告)号:US20230267289A1

    公开(公告)日:2023-08-24

    申请号:US17679843

    申请日:2022-02-24

    CPC classification number: G06K7/10732 G06K7/10881 G06K2007/10524

    Abstract: Systems for alternative illumination in global shutter barcode readers are disclosed herein. An example system includes an imaging apparatus configured to capture an image during an image capture period, and an imaging shutter configured to actuate and expose the imaging apparatus to an external environment during the image capture period. The example system also includes an illumination light emitting diode (LED) configured to emit illumination, and an illumination drive circuit configured to cause the illumination LED to emit the illumination (i) during the image capture period and (ii) when the imaging apparatus is shielded from exposure to the external environment by the imaging shutter.

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