ITEM TRACKING USING RADIO FREQUENCY IDENTIFICATION FILTERING

    公开(公告)号:US20250117612A1

    公开(公告)日:2025-04-10

    申请号:US18480987

    申请日:2023-10-04

    Abstract: Systems and techniques are provided for wireless communications. A Radio Frequency Identification (RFID) observation can be obtained based on an energizing signal and a plurality of backscatter signals from a plurality of RFID tags. Each backscatter signal can indicate an identifier of a respective RFID tag uniquely associated with a particular item of a plurality of items. Expected background noise information, indicative of a subset of the plurality of items for the RFID observation, can be determined based on comparing a location of a wireless communication device and item placement information for the plurality of items. The RFID observation can be filtered using the expected background noise information to exclude information associated with the subset of the plurality of items. A basket content estimation can be determined from the filtered RFID observation, wherein the basket content estimation is indicative of one or more collected items of the plurality of items.

    METHODS OF CONTROLLING LOCATION DEVICES IN A FLIGHT MODE

    公开(公告)号:US20240007824A1

    公开(公告)日:2024-01-04

    申请号:US17809870

    申请日:2022-06-29

    CPC classification number: H04W4/029 G01S5/14 G01S19/47 H04W84/06

    Abstract: Aspects presented herein may enable a tracking device to disable its transmitter based on determining whether the wireless device is within the vicinity or a threshold distance of an airport and/or based on information or measurements obtained from its modem receiver. In one aspect, a wireless device detects whether the wireless device is within a threshold distance of a target location or whether the wireless device is airborne. The wireless device disables a transmitter of the wireless device based on detecting that the wireless device is within the threshold distance of the target location or that the wireless device is airborne.

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