Speculative activation for secure element usage

    公开(公告)号:US12232041B2

    公开(公告)日:2025-02-18

    申请号:US17758277

    申请日:2020-03-12

    Applicant: Google LLC

    Abstract: If a secure element accesses a resource that is separate from the secure element, conducting a secure transaction can be inefficient in terms of power or time. Power usage is inefficient if the resource is never permitted to sleep, and transaction time is inefficient if the resource is permitted to sleep, and the user experiences a delay. To enable dual efficiency, a resource entity is permitted to be powered down. The resource entity is then powered up speculatively by an activation controller. The activation controller predicts an upcoming secure transaction based on sensor output, such as a position fix or a detected electromagnetic field. Based on monitored sensor output, the activation controller issues an activation signal to power up the secure element or the resource entity prior to initiation of the upcoming secure transaction. Thus, power can be conserved without introducing a transaction-processing latency.

    Near-field wireless device
    3.
    发明授权

    公开(公告)号:US12199696B2

    公开(公告)日:2025-01-14

    申请号:US17339022

    申请日:2021-06-04

    Applicant: NXP B.V.

    Abstract: One example discloses a first near-field device, including: a controller configured to establish a near-field communications link with a second near-field device; wherein the controller is configured to monitor a characteristic of the near-field communications link; wherein the controller is configured to select a first modulation encoding for transmitting a near-field signal if the characteristic is greater than a first characteristic threshold; and wherein the controller is configured to select a second modulation encoding for transmitting the near-field signal if the characteristic is less than the first characteristic threshold but greater than a second characteristic threshold.

    Devices, systems and methods for multiple channel communication across an isolation barrier

    公开(公告)号:US12191931B2

    公开(公告)日:2025-01-07

    申请号:US17681176

    申请日:2022-02-25

    Abstract: A device includes: first and second electronic sides; an isolation barrier galvanically isolating the electronic sides from one another and including a signal coupler configured to enable signaling between the electronic sides over the isolation barrier via electromagnetic coupling; and transceiver circuitry included in both electronic sides and configured to implement, based on a frequency response profile of the isolation barrier, full-duplex communication between the electronic sides using the same signal coupler. According to another embodiment of a device, the device includes: electronic circuitry; an isolation barrier galvanically isolating the electronic circuitry and including a signal coupler configured to enable signaling over the isolation barrier via electromagnetic coupling; and transceiver circuitry configured to implement, based on a frequency response profile of the isolation barrier, full-duplex communication between the electronic circuitry of the device and electronic circuitry of another device using the same signal coupler.

    Functional cover with wireless connection for ring wearable

    公开(公告)号:US12177997B2

    公开(公告)日:2024-12-24

    申请号:US17855090

    申请日:2022-06-30

    Applicant: Oura Health Oy

    Abstract: Methods, systems, and devices for a functional cover are described. A removable cover (e.g., a functional cover) for a wearable ring device (e.g., a ring wearable) may include one or more electrical components positioned at least partially within the removable cover. In some cases, the functional cover may wireless connect with the ring wearable. The removable cover may further include a first inductive component within the removable cover, where the first inductive component is configured to wirelessly communicate with a second inductive component of the wearable ring device when the removable cover is in a mounted state on the wearable ring device. The first inductive component of the removable cover may be configured to transfer electrical current, data, or both, between the one or more electrical components of the removable cover and one or more additional electrical components of the wearable ring device.

    Systems And Methods For Wireless Power And Data Transfer Utilizing Multiple Antenna Receivers

    公开(公告)号:US20240421641A1

    公开(公告)日:2024-12-19

    申请号:US18744236

    申请日:2024-06-14

    Abstract: A wireless receiver system, configured to receive both electrical data signals and electrical energy, includes a first receiver antenna, configured to receive one or both of the electrical data signals and the electrical energy, and a power conditioning system in electrical connection with the first receiver antenna, configured to receive electrical energy from the first receiver antenna. The wireless receiver system further includes a second receiver antenna configured to receive the electrical data signals and a receiver controller operatively associated with the first receiver antenna and the second receiver antenna and configured to determine switching instructions. The wireless receiver system further includes a switch operatively associated with the receiver controller and configured to switch receiving operations between the first and second receiver antennas based, at least in part, on the switching instructions.

    WIRELESS SERIAL CONNECTION COMMUNICATION SYSTEM AND ANTENNA MODULE THEREOF

    公开(公告)号:US20240388322A1

    公开(公告)日:2024-11-21

    申请号:US18590864

    申请日:2024-02-28

    Abstract: A wireless serial connection communication system, including: a first circuit board, including a first antenna module which includes a first front wireless communication terminal and a first rear wireless communication terminal; and a second circuit board, disposed adjacent to the first circuit board, the second circuit board including a second antenna module which includes a second front wireless communication terminal and a second rear wireless communication terminal. The first rear wireless communication terminal is face to face adjacent to the second front wireless communication terminal. The first front wireless communication terminal and the second rear wireless communication terminal are respectively disposed on farther sides over the first and second circuit boards, with reference to the first rear wireless communication terminal and the second front wireless communication terminal. By an antenna operation between the first circuit board and the second circuit board, a first wireless signal connection is built between the first rear wireless communication terminal and the second front wireless communication terminal.

Patent Agency Ranking