Systems and methods for IAB MEC
    373.
    发明授权

    公开(公告)号:US12231913B2

    公开(公告)日:2025-02-18

    申请号:US17593291

    申请日:2021-06-28

    Applicant: APPLE INC.

    Abstract: Systems and methods for using integrated access and backhaul (IAB) nodes configured to provide multi-access edge computing (MEC) functionality are disclosed herein. An TAB node includes a distributed unit (DU) having a local application instance of a MEC-enabled application. The local application instance is configured for communication with a first user equipment (UE) connected to the TAB node. A mobile termination functionality (MT) of the IAB node uses a packet data convergence protocol (PDCP) layer to transport data of the local application instance between the MT and an IAB donor. Further, data of the local application instance is transported between the UE and the TAB node via one of a variety of methods, including the use of a second PDCP layer at the DU (and optionally the use of service data adaptation protocol (SDAP) layers at each of the DU and the MT), and/or via sidelink.

    Pixel output settling assist with dynamic bias current

    公开(公告)号:US12231792B1

    公开(公告)日:2025-02-18

    申请号:US17934177

    申请日:2022-09-21

    Applicant: Apple Inc.

    Inventor: Hai Yan Chiajen Lee

    Abstract: A camera may one or more lenses and an image sensor having an array of light-gathering pixels. The pixels may generate image signals based on light passing through the lenses. The camera may include at least one pixel output settling assist circuit. The pixel output settling assist circuit may be electrically coupled to an output signal line of at least one of the pixels. The pixel output settling assist circuit may include a pixel output voltage change detection circuit and a bias current adjustment circuit. During read-out of the image signals of the at least one pixel, the pixel output voltage change detection circuit may detect a change of a voltage at the output of the pixel. The bias current adjustment circuit may generate and adjust a current injected to the output based on the detected change of the voltage at the output.

    Techniques for controlling specific absorption rate of radio energy transmission

    公开(公告)号:US12231156B2

    公开(公告)日:2025-02-18

    申请号:US18315275

    申请日:2023-05-10

    Applicant: Apple Inc.

    Abstract: The disclosure relates to techniques for controlling Specific Absorption Rate (SAR) of radio energy transmission. In particular, the disclosure relates to a radio device and a method for controlling radio energy transmission of a plurality of radio entities to comply with a predefined SAR requirement. Such a radio device includes: a plurality of radio entities configured to transmit radio energy; and a controller configured to control the radio energy transmission of the plurality of radio entities to comply with a predefined Specific Absorption Rate, SAR, requirement, wherein the controller is configured to enable at least two radio entities of the plurality of radio entities operating concurrently based on a shared SAR transmission power restriction which allows the at least two radio entities transmitting concurrently at a predefined duty cycle, in particular at 100% duty cycle, without violating the SAR requirement. The disclosure further relates to a method for dynamic management of a SAR budget across multiple radio entities.

    Power converter circuit for use with multiple low-current power rails

    公开(公告)号:US12231044B2

    公开(公告)日:2025-02-18

    申请号:US18153057

    申请日:2023-01-11

    Applicant: Apple Inc.

    Abstract: A power management circuit for computer systems includes a power converter circuit that generates different voltage levels at different time periods. Multiple voltage regulator circuits are coupled to the output of the power converter circuit and to respective local power supply nodes. Switch devices are used to bypass the voltage regulator circuits during corresponding ones of the different time periods.

    Processing of data synchronization barrier instructions

    公开(公告)号:US12229561B1

    公开(公告)日:2025-02-18

    申请号:US17933037

    申请日:2022-09-16

    Applicant: Apple Inc.

    Abstract: A system may include multiple processors. One of the processors may receive an indication of a data synchronization barrier (DSB) instruction in another processor that follows a translation look-ahead buffer invalidate (TLBI) instruction to invalidate an entry of a translation look-ahead buffer. The processor may determine whether instructions are pending in the processor for which the virtual addresses used for memory accesses have been translated to physical addresses before receiving the DSB indication. If there are such pending instructions, the processor may provide, after these instructions retire, an indication to the other processor as a response to the DSB indication.

    Optical systems with flare-mitigating angular filters

    公开(公告)号:US12228734B2

    公开(公告)日:2025-02-18

    申请号:US17476642

    申请日:2021-09-16

    Applicant: Apple Inc.

    Abstract: An electronic device may include a display with an optical combiner. The combiner may include a waveguide and a cross coupler on the waveguide. The combiner may redirect light from a display module to an eye box while passing world light to the eye box within a field of view. The cross coupler may include surface relief gratings or other broadband gratings. The combiner may include an angular filter that at least partially overlaps the cross coupler. The cross coupler may include surface relief grating structures or other broadband gratings. The angular filter may include angled absorbers or diffractive gratings. The angular filter may prevent world light that would otherwise produce distracting flares at the eye box (e.g., world light incident on the waveguide outside the field of view such as high-incident angle light from an overhead light source) from passing to the cross coupler.

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