公开(公告)号：US20220394101A1

公开(公告)日：2022-12-08

申请号：US17496479

申请日：2021-10-07

Applicant: Apple Inc.

Inventor： Yoav Feinmesser ,  Rafi Vitory ,  Ron Eyal ,  Eyal Waserman ,  Yunxing Ye

IPC: H04L29/08 ,  H04W4/33 ,  H04W4/38 ,  G06N20/00

Abstract: A semi-supervised machine learning model can provide for classifying an input data point as associated with a particular target location or a particular action. Each data point comprises one or more sensor values from one or more signals emitted by one or more signal sources located within a physical area. A tagged sample set and an untagged sample set are combined to train the machine learning model. Each tagged sample includes a respective data point and a label representing a respective location/action. Each untagged sample includes a data point, but is unlabeled. Once trained, given a current data point, the machine learning model can classify the current data point as associated with a particular location/action, after which a target object (e.g., other device or application to be used) can be predicted.

公开(公告)号：US20220104177A1

公开(公告)日：2022-03-31

申请号：US17484567

申请日：2021-09-24

Applicant: Apple Inc.

Inventor： Oren Shani ,  Josef Peery ,  Leonid Vainbrand ,  Udi Atar ,  Yoav Feinmesser ,  Yoel Boger

IPC: H04W72/00 ,  H04L5/00 ,  H04W64/00 ,  H04B17/27

Abstract: Disclosed are methods, systems, and computer-readable medium to perform operations comprising periodically broadcasting, by a first wireless device, outgoing ranging packets on a measurement channel of a wireless network; receiving, by the first wireless device on the measurement channel and from a second wireless device, a plurality of incoming ranging data packets; and calculating, by the first wireless device and using a three ranging packet exchange with the second wireless device, a range to the second wireless device.

公开(公告)号：US11265100B2

公开(公告)日：2022-03-01

申请号：US16662582

申请日：2019-10-24

Applicant: Apple Inc.

Inventor： Roy Beeri ,  Qi Wang ,  Oren Shani ,  Yoav Feinmesser

IPC: H04W4/00 ,  H04L1/00 ,  H04L1/20 ,  H04W48/16 ,  H04B17/309 ,  H04W24/10 ,  H04B17/21 ,  H04W84/12

Abstract: Some embodiments of this disclosure include apparatuses and methods for implementing a requirement negotiation for an error vector magnitude (EVM) (or other metrics for measuring transmission signal quality) for ranging and/or positioning operation(s). Some embodiments relate to an electronic device including a transceiver and one or more processors communicatively coupled to the transceiver. The one or more processors transmit, during a negotiation phase of a ranging operation, an initial request frame to a second electronic device, wherein the initial request frame comprises a first indication of an error vector magnitude (EVM) requirement. The one or more processors receive an initial response frame from the second electronic device and determine a second indication of the EVM requirement based at least in part on the received initial response frame. The one or more processors implement a measurement phase of the ranging operation in accordance with the second indication of the EVM requirement.

公开(公告)号：US11152970B1

公开(公告)日：2021-10-19

申请号：US17028879

申请日：2020-09-22

Applicant: Apple Inc.

Inventor： Istvan J. Szini ,  Jim C. Hwang ,  Yoav Feinmesser

IPC: H04B1/44 ,  H04B1/3827

Abstract: An apparatus for detecting worn and/or unworn status of a wearable host device includes one or more first antennas, a second antenna, and a radio-frequency (RF) circuit to measure a dielectric loading based on an RF isolation. The second antenna is placed within a portion of the wearable host device that is substantially in contact with the skin of a user, and the RF isolation is between at least one of the one or more first antennas and the second antenna.

公开(公告)号：US11057829B2

公开(公告)日：2021-07-06

申请号：US16550508

申请日：2019-08-26

Applicant: Apple Inc.

Inventor： Qi Wang ,  Christiaan A. Hartman ,  Oren Shani ,  Rafi Vitory ,  Roy Beeri ,  Yoav Feinmesser

IPC: H04W52/02 ,  H04W64/00 ,  H04W84/12

Abstract: Methods for performing a ranging procedure according to the non-trigger-based protocol may include negotiating timing parameters associated with the ranging procedure, performing a ranging measurement, and transmitting/receiving, after completion of the ranging measurement, a message announcing initiation of another ranging measurement. The timing parameters may indicate a time window in which an initiating device can initiate a subsequent ranging measurement and the message announcing initiation of the second ranging measurement may be received during the time range specified. Timing parameters may indicate a responding device's required minimum and maximum time between ranging measurements. Additional parameters may indicate an initiating device's required minimum and maximum time between ranging measurements. A power savings mode may be entered after the first ranging measurement and during at least a portion of a time period specified by the parameters.

公开(公告)号：US10051423B1

公开(公告)日：2018-08-14

申请号：US15612553

申请日：2017-06-02

Applicant: Apple Inc.

Inventor： Yoav Feinmesser ,  Rafi Vitory ,  Ariel Landau ,  Barak Sagiv

IPC: H04W24/00 ,  H04W4/02 ,  H04W8/00 ,  H04L12/707 ,  H04W84/12

Abstract: Embodiments herein relate to using a convolutional neural network (CNN) for time-of-flight estimation in a wireless communication system. A wireless device may receive, from a remote device, wireless communications including a first transmission time value associated with the transmission of the wireless communications. The wireless device may perform a coarse time-of-arrival (TOA) estimation on the wireless communications received from the remote device. The coarse TOA estimation may be used to generate an estimated impulse response, which may be input to a CNN associated with the wireless device to calculate a line-of-sight estimate. The wireless device may determine a range between the wireless device and the remote device based on the transmission time value and the line-of-sight estimate.