Displays with non-periodic opaque structures

    公开(公告)号:US11908846B1

    公开(公告)日:2024-02-20

    申请号:US17009158

    申请日:2020-09-01

    Applicant: Apple Inc.

    CPC classification number: H01L25/167

    Abstract: A display may include light-emitting components such as light-emitting diodes on a transparent substrate. Conductive signal paths between the light-emitting components, driver integrated circuits for controlling the light-emitting components, and the light-emitting components themselves may be opaque. To mitigate diffraction artifacts caused by the opaque components, the opaque footprint of the display may be selected to include non-periodic portions. The non-periodic portions increase randomness and reduce periodicity within the opaque footprint, which mitigates perceptible diffraction artifacts when viewing the display. One or both of the component mounting portions and interconnect portions of the opaque footprint may be non-periodic. The component mounting portions may have random shapes. The interconnect portions may follow random paths between the component mounting portions.

    Synchronization sequence design for device-to-device communication

    公开(公告)号:US11616680B2

    公开(公告)日:2023-03-28

    申请号:US15931873

    申请日:2020-05-14

    Applicant: Apple Inc.

    Abstract: This disclosure relates to techniques for supporting narrowband device-to-device wireless communication, including possible techniques for providing synchronization sequences. A first wireless device may transmit a preamble of a device-to-device wireless communication with a second wireless device. The preamble may include a first synchronization sequence. The first synchronization sequence may include multiple repetitions of a basis sequence, multiplied by a cover code. The basis sequence may span multiple orthogonal frequency division multiplexing symbols.

    5G New Radio Beam Refinement Procedure

    公开(公告)号:US20220368403A1

    公开(公告)日:2022-11-17

    申请号:US17873934

    申请日:2022-07-26

    Applicant: Apple Inc.

    Abstract: Apparatuses, systems, and methods for a wireless device to perform methods to implement mechanisms for a UE to request a beam quality measurement procedure. A user equipment device may be configured to perform a method including performing transmitting a request to perform a beam quality measurement procedure for downlink receptions (e.g., a P3 procedure) to a base station/network entity, receiving instructions to perform the beam quality measurement procedure from the base station, and transmitting results of the beam quality measurement procedure to the base station. In some embodiments, transmission of the request may be response to at least one trigger condition and/or detection of a condition at the UE. The request may include an indication of a preferred timing offset. The instructions to perform the beam quality measurement procedure may include a schedule for the beam quality measurement.

    Presence discovery techniques
    39.
    发明授权

    公开(公告)号:US11350265B2

    公开(公告)日:2022-05-31

    申请号:US16903529

    申请日:2020-06-17

    Applicant: Apple Inc.

    Abstract: This disclosure relates to techniques for performing presence discovery in a wireless communication. A wireless device may monitor a wireless medium for discovery signals. A candidate discovery signal may be detected. A frequency offset estimation consistency check may be performed on the candidate discovery signal. A peak to sidelobe ratio check may be performed on the candidate discovery signal. The wireless device may determine whether the candidate discovery signal is a false positive based at least in part on the frequency offset estimation consistency check and the peak to sidelobe ratio check.

    Displays with content-dependent brightness adjustment

    公开(公告)号:US11295703B2

    公开(公告)日:2022-04-05

    申请号:US16926545

    申请日:2020-07-10

    Applicant: Apple Inc.

    Abstract: An electronic device may be provided with an ambient light sensor, a display that displays image content, and control circuitry. The control circuitry may adjust a peak allowable brightness of the display based on an ambient light brightness and based on the image content being displayed. For example, the control circuitry may analyze frames of display data to determine an average pixel luminance level. Low average pixel luminance levels correspond to mostly dark image content, whereas high average pixel luminance levels correspond to mostly light image content. When an electronic device is outdoors and displaying mostly dark images with low average pixel luminance levels, the control circuitry may take advantage of the display's maximum achievable brightness to improve readability. When an electronic device is outdoors and displaying mostly light images with high average pixel luminance levels, the control circuitry may scale the maximum allowable brightness down to reduce power consumption.

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