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    Sensor-Assisted Technique for RF Power Normalization in Locationing Applications
    1.
    发明公开
    Sensor-Assisted Technique for RF Power Normalization in Locationing Applications 审中-公开

    公开(公告)号：US20230171616A1

    公开(公告)日：2023-06-01

    申请号：US18095832

    申请日：2023-01-11

    Applicant: ZEBRA TECHNOLOGIES CORPORATION

    Inventor： Vinh-Phuong T. Le ,  Thomas E. Warner ,  Edward W. Geiger

    IPC: H04W24/02 ,  H04B1/16 ,  H04W64/00 ,  H04B17/318

    CPC classification number: H04W24/02 ,  H04B1/16 ,  H04W64/006 ,  H04B17/318

    Abstract: A system for determining a distance between a receiver and a transmitter are disclosed herein. The transmitter includes a first antenna array having a first spatial orientation and is configured to transmit a signal. The receiver includes a second antenna array and an orientation sensor to determine a second spatial orientation of the second antenna array and is configured to receive the signal. A logic circuit is configured compare the first spatial orientation to the second spatial orientation to determine a relative orientation of the second antenna array; determine an angle of arrival of the signal; identify, based on the relative orientation of the second antenna array and the angle of arrival of the signal, a received signal strength compensation value; and calculate a distance between the transmitter and the receiver based on a measured received signal strength of the signal and the identified compensation value.

    Sensor-assisted technique for RF power normalization in locationing applications
    6.
    发明授权
    Sensor-assisted technique for RF power normalization in locationing applications 有权

    公开(公告)号：US11770723B2

    公开(公告)日：2023-09-26

    申请号：US18095832

    申请日：2023-01-11

    Applicant: ZEBRA TECHNOLOGIES CORPORATION

    Inventor： Vinh-Phuong T. Le ,  Thomas E. Warner ,  Edward W. Geiger

    IPC: H04B1/16 ,  H04W24/02 ,  H04W4/02 ,  H04R3/12 ,  H04W76/10 ,  H04W64/00 ,  H04B17/318

    CPC classification number: H04W24/02 ,  H04B1/16 ,  H04B17/318 ,  H04W64/006

    Abstract: A system for determining a distance between a receiver and a transmitter are disclosed herein. The transmitter includes a first antenna array having a first spatial orientation and is configured to transmit a signal. The receiver includes a second antenna array and an orientation sensor to determine a second spatial orientation of the second antenna array and is configured to receive the signal. A logic circuit is configured compare the first spatial orientation to the second spatial orientation to determine a relative orientation of the second antenna array; determine an angle of arrival of the signal; identify, based on the relative orientation of the second antenna array and the angle of arrival of the signal, a received signal strength compensation value; and calculate a distance between the transmitter and the receiver based on a measured received signal strength of the signal and the identified compensation value.

    SENSOR-ASSISTED TECHNIQUE FOR RF POWER NORMALIZATION IN LOCATIONING APPLICATIONS
    9.
    发明申请
    SENSOR-ASSISTED TECHNIQUE FOR RF POWER NORMALIZATION IN LOCATIONING APPLICATIONS 有权

    公开(公告)号：US20210136600A1

    公开(公告)日：2021-05-06

    申请号：US16669024

    申请日：2019-10-30

    Applicant: ZEBRA TECHNOLOGIES CORPORATION

    Inventor： Vinh-Phuong T. Le ,  Thomas E. Warner ,  Edward W. Geiger

    IPC: H04W24/02 ,  H04B17/318 ,  H04W64/00 ,  H04B1/16

    Abstract: A radio frequency (RF) device includes a spatial orientation sensor and logic circuit configured to determine spatial orientation of the RF device relative to a reference position or relative to a RF transmitter. In particular, the RF device determines a distance between the RF receiver and the RF transmitter based on a received signal strength of the signal and a determined spatial orientation of the RF device, by determining an orientation compensation value from a stored orientation compensation profile and determining a resulting compensated received signal strength. The RF device is thereby able to determine distance in an orientationally-invariant manner.

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