Wireless charging coil placement for reduced field exposure

    公开(公告)号:US10516304B2

    公开(公告)日:2019-12-24

    申请号:US14978386

    申请日:2015-12-22

    Abstract: An apparatus is described herein. The apparatus includes a power transmit unit coil and an active shielding coil. The power transmit unit coil includes a set of main windings, positioned at a first location on a structure, to carry a first current in a first direction, wherein the first current is to cause an electromagnetic field to emanate from the power transmit unit coil. The active shielding coil is positioned at a second location on the structure and is to carry a second current in a direction substantially opposite the first direction wherein the second current is to cause a reduction of the size of the electromagnetic field.

    Assessment and mitigation of radio frequency interference of networked devices

    公开(公告)号:US11160089B2

    公开(公告)日:2021-10-26

    申请号:US16715303

    申请日:2019-12-16

    Abstract: A system and method are provided for assessing and mitigating radio frequency interference (RFI) in a network comprising a plurality of wireless devices. During an RFI assessment phase the process includes receiving an attacker signal to operate as an attacker device and then responding to the attacker signal by transmitting a transmitted interference test packet (ITPkt) to one or more other wireless devices of the plurality of wireless devices. The transmitted ITPkt comprises ITPkt parameters includes a network identifier of the device, a transmission globally unique identifier, and a time of transmission for a transmitted interference test pattern (ITPat). The process additionally includes transmitting the transmitted ITPat at the time of transmission for the transmitted ITPat.

    Proximity sensing headphones
    3.
    发明授权

    公开(公告)号:US10390123B2

    公开(公告)日:2019-08-20

    申请号:US15694138

    申请日:2017-09-01

    Abstract: A proximity sensing headphone may include a gyroscopic sensor to determine the motion of the headphone structure and a proximity sensor to determine the movement of an external object through a three-dimensional ambient environment. A proximity sensing headphone control circuit determines the relative motion or movement between the headphone structure in the three-dimensional ambient environment and the external object in the three-dimensional ambient environment to determine at least a distance between the headphone structure and the external object and a velocity of the external object through the three-dimensional ambient environment about the headphone structure. The control circuit may provide an alert output if the determined distance between the headphone structure and the external object is less than a defined distance threshold or the velocity of the external object through the three-dimensional ambient environment about the headphone structure exceeds a defined velocity threshold.

    ASSESSMENT AND MITIGATION OF RADIO FREQUENCY INTERFERENCE OF NETWORKED DEVICES

    公开(公告)号:US20190045515A1

    公开(公告)日:2019-02-07

    申请号:US15857523

    申请日:2017-12-28

    CPC classification number: H04W72/082 H04L67/12 H04W12/12 H04W72/10

    Abstract: A system and method are provided for assessing and mitigating radio frequency interference (RFI) in a network comprising a plurality of wireless devices. During an RFI assessment phase the process includes receiving an attacker signal to operate as an attacker device and then responding to the attacker signal by transmitting a transmitted interference test packet (ITPkt) to one or more other wireless devices of the plurality of wireless devices. The transmitted ITPkt comprises ITPkt parameters includes a network identifier of the device, a transmission globally unique identifier, and a time of transmission for a transmitted interference test pattern (ITPat). The process additionally includes transmitting the transmitted ITPat at the time of transmission for the transmitted ITPat.

    Architecture for telemetry and adaptive lifetime control of integrated circuits

    公开(公告)号:US10114981B2

    公开(公告)日:2018-10-30

    申请号:US15396561

    申请日:2016-12-31

    Abstract: Apparatus, method, and system for remotely affecting the functionality and lifetime of an integrated circuit are described herein. One embodiment of a method includes: tracking a plurality of operational metrics relating to a monitored device, sending one or more of the plurality of operational metrics to a remote monitor and responsively receiving a command generated by the remote monitor, generating a threat level based on the plurality of operational metrics and the command, and performing a derating action based on the threat level. The command from the remote monitor may be generated by the remote monitor based, at least in part, on the one or more of the plurality of operational metrics. Alternatively, the command may be generated based on information obtained independently by the remote monitor and not based on the one or more of the plurality of operational metrics.

    APPARATUS AND METHOD FOR MONITORING AND PREDICTING RELIABILITY OF AN INTEGRATED CIRCUIT

    公开(公告)号:US20170242068A1

    公开(公告)日:2017-08-24

    申请号:US15051571

    申请日:2016-02-23

    CPC classification number: G01R31/2858

    Abstract: Described is an apparatus which comprises: a first array of reliability monitors including first and second reliability monitors, wherein the first and second reliability monitors include first and second switches and first and second conductors, wherein the first and second switches are coupled to first and second conductors, respectively; and first and second comparators coupled to the first and second switches, respectively. Described is an apparatus which comprises: a conductor formed on a metal layer; a switch having a source terminal coupled to the conductor, and a drain terminal coupled to a power supply node, wherein the switch is controllable by a controller; and a comparator having a first input coupled to the power supply node and to the switch, wherein the comparator includes a second input coupled to an adjustable reference.

    ASSESSMENT AND MITIGATION OF RADIO FREQUENCY INTERFERENCE OF NETWORKED DEVICES

    公开(公告)号:US20200296730A1

    公开(公告)日:2020-09-17

    申请号:US16715303

    申请日:2019-12-16

    Abstract: A system and method are provided for assessing and mitigating radio frequency interference (RFI) in a network comprising a plurality of wireless devices. During an RFI assessment phase the process includes receiving an attacker signal to operate as an attacker device and then responding to the attacker signal by transmitting a transmitted interference test packet (ITPkt) to one or more other wireless devices of the plurality of wireless devices. The transmitted ITPkt comprises ITPkt parameters includes a network identifier of the device, a transmission globally unique identifier, and a time of transmission for a transmitted interference test pattern (ITPat). The process additionally includes transmitting the transmitted ITPat at the time of transmission for the transmitted ITPat.

    Vehicular inductive power transfer systems and methods

    公开(公告)号:US10688874B2

    公开(公告)日:2020-06-23

    申请号:US15182441

    申请日:2016-06-14

    Abstract: A vehicular inductive power transfer system includes a power transmission unit and a power receiving unit. The distance between the units and the overall alignment of the units with respect to each other determines the overall efficiency of the energy transfer between the power transmission unit and the power receiving unit. Magnetic fields produced by the inductive power transfer system may exceed allowable standards or regulations for human exposure to electromagnetic fields. An inductive power transfer control circuit autonomously causes an actuator to position at least one of the power transmission unit or the power receiving unit in a three-dimensional space based on one or more measured power transfer parameters. Such positioning may occur while the vehicle is moving or stationary. The control circuit may further autonomously adjust one or more power transfer parameters to maintain magnetic field exposure levels at or below industry standards or governmental regulations.

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