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    Circular polarized angle of arrival measuring system
    2.
    发明授权
    Circular polarized angle of arrival measuring system 有权

    公开(公告)号：US11150317B2

    公开(公告)日：2021-10-19

    申请号：US16445468

    申请日：2019-06-19

    Applicant: DENSO International America, Inc. ,  DENSO CORPORATION

    Inventor： Raymond Michael Stitt ,  John Videtich ,  Warren Guthrie ,  Karl Jager ,  Thomas Peterson

    IPC: G01S3/48 ,  G01S3/04 ,  H01Q3/36 ,  H01Q11/08 ,  H01Q21/00 ,  B60R25/24 ,  G07C9/00 ,  H01Q21/29 ,  H04W88/02 ,  B60R25/20

    Abstract: Methods and systems are disclosed and include receiving a signal via a first communication channel at a plurality of azimuth angles. The method includes determining a plurality of first communication channel phase angle differences between a pair of antennas. The method includes receiving a second signal via a second communication channel and at the plurality of azimuth angles. The method includes determining a plurality of second communication channel phase angle differences between the pair of antennas that each correspond to one of the plurality of azimuth angles. The method includes generating a first reference curve based on the plurality of first communication channel phase angle differences. The method includes generating a second reference curve based on the plurality of second communication channel phase angle differences. The method also includes generating a calibration curve that is based on an interpolation of the first reference curve and the second reference curve.

    Mobile de-whitening
    4.
    发明授权
    Mobile de-whitening 有权

    公开(公告)号：US11379386B2

    公开(公告)日：2022-07-05

    申请号：US17207885

    申请日：2021-03-22

    Applicant: DENSO International America, Inc. ,  DENSO CORPORATION

    Inventor： Raymond Michael Stitt ,  Thomas Peterson ,  Karl Jager ,  Kyle Golsch

    IPC: G06F13/12 ,  H04L9/32 ,  G07C9/00 ,  B60R25/00 ,  H04L9/08

    Abstract: Systems and methods are disclosed and include receiving, with a peripheral device, a message packet from a portable device, the message packet including an authenticated packet with a de-whitened tone byte inserted therein. The portable device generates first message authentication code (MAC) bytes based on a shared secret key and generates the authenticated packet based on the first MAC bytes, first nonce bytes, and a message byte. The peripheral device validates the message packet in response to determining that the first MAC bytes match second MAC bytes and that the first nonce bytes match second nonce bytes. The peripheral device generates a reconstructed message packet in response to validating the message packet by removing the de-whitened tone byte from the authenticated packet. The communication gateway establishes a communication link between the portable device and the communication gateway in response to receiving the reconstructed message packet.

    Measuring angle of arrival on a constant and/or pre-known part of a BLE packet
    5.
    发明授权
    Measuring angle of arrival on a constant and/or pre-known part of a BLE packet 有权

    公开(公告)号：US11237244B2

    公开(公告)日：2022-02-01

    申请号：US16504488

    申请日：2019-07-08

    Applicant: DENSO International America, Inc. ,  DENSO CORPORATION

    Inventor： Karl Jager ,  Raymond Michael Stitt

    IPC: G01S5/10 ,  G01S5/02 ,  G01S3/48 ,  G01S3/46 ,  G01S3/04 ,  H04W4/80

    Abstract: A system and method are disclosed and include receiving a wireless signal. The method includes generating a first and second set of digital data that are representative of the wireless signal. The method includes obtaining a first and second sample that is representative of a cosine and sine component, respectively, of a pre-known portion of the first set. The method includes obtaining a third and fourth sample that is representative of a cosine and sine component, respectively, of a pre-known portion of the second set. The method includes determining a first phase angle value based on an amplitude of the first and second samples and a second phase angle based on an amplitude of the third and fourth samples. The method includes determining an angle of arrival based on a difference between the first and second phase angle values.

    Mobile de-whitening
    9.
    发明授权
    Mobile de-whitening 有权

    公开(公告)号：US10956343B2

    公开(公告)日：2021-03-23

    申请号：US16594196

    申请日：2019-10-07

    Applicant: DENSO International America, Inc. ,  DENSO CORPORATION

    Inventor： Raymond Michael Stitt ,  Thomas Peterson ,  Karl Jager ,  Kyle Golsch

    IPC: G06F13/12 ,  H04L9/32 ,  G07C9/00 ,  B60R25/00 ,  H04L9/08

    Abstract: Systems and methods are disclosed and include a processor configured to execute instructions stored in a nontransitory computer-readable medium. The instructions include generating first message authentication code (MAC) bytes based on a shared secret key. The instructions include generating first nonce bytes and an authenticated packet based on the first MAC bytes, the first nonce bytes, and a message byte. The instructions include generating a de-whitened tone byte based on the shared secret key. The instructions include generating a message packet that includes the authenticated packet and the de-whitened tone byte. Generating the message packet includes pseudo-randomly identifying a first location of the authenticated packet and inserting the de-whitened tone byte at the first location. The instructions include transmitting the message packet to the peripheral device and establishing the communication link between a portable device and a peripheral device in response to the peripheral device validating the message packet.

    Mobile de-whitening
    10.
    发明授权
    Mobile de-whitening 有权

    公开(公告)号：US10437745B2

    公开(公告)日：2019-10-08

    申请号：US16211330

    申请日：2018-12-06

    Applicant: DENSO International America, Inc. ,  DENSO CORPORATION

    Inventor： Raymond Stitt ,  Thomas Peterson ,  Karl Jager ,  Kyle Golsch

    IPC: G06F13/12 ,  H04L9/08

    Abstract: Systems and methods are disclosed and include a processor configured to execute instructions stored in a nontransitory computer-readable medium. The instructions include generating first message authentication code (MAC) bytes based on a shared secret key. The instructions include generating first nonce bytes and an authenticated packet based on the first MAC bytes, the first nonce bytes, and a message byte. The instructions include generating a de-whitened tone byte based on the shared secret key. The instructions include generating a message packet that includes the authenticated packet and the de-whitened tone byte. Generating the message packet includes pseudo-randomly identifying a first location of the authenticated packet and inserting the de-whitened tone byte at the first location. The instructions include transmitting the message packet to the peripheral device and establishing the communication link between a portable device and a peripheral device in response to the peripheral device validating the message packet.

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