Dynamic VCOM compensation
    11.
    发明授权

    公开(公告)号:US11087710B2

    公开(公告)日:2021-08-10

    申请号:US16147045

    申请日:2018-09-28

    申请人: Apple Inc.

    IPC分类号: G09G3/36 G09G3/3225

    摘要: A display includes a plurality of pixels grouped into a plurality of lines of pixels. Each line of pixels of the plurality of lines comprises a group of pixels of the plurality of pixels that are coupled to a common scan line as well and that are coupled to different data lines to individually activate each pixel of the group of pixels. The display also includes a common voltage (VCOM) driving circuit configured to receive a waveform and drive the waveform to the display as a VCOM having a value tailored to an individually activated pixel of the group of pixels.

    5G New Radio Beam Refinement Procedure

    公开(公告)号:US20210203401A1

    公开(公告)日:2021-07-01

    申请号:US17202185

    申请日:2021-03-15

    申请人: Apple Inc.

    摘要: 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.

    Self-contained slot and slot duration configuration in NR systems

    公开(公告)号:US10779276B2

    公开(公告)日:2020-09-15

    申请号:US16357844

    申请日:2019-03-19

    申请人: Apple Inc.

    摘要: Apparatuses, systems, and methods to dynamically indicate preference for self-contained slots and slot duration by a user equipment device (UE) in communication with a base station (e.g., a gNB) using a 5G NR radio access technology. A UE may determine to send an indication to a gNB indicating a preference for self-contained slots and slot duration for downlink and/or uplink communications utilizing one or more of the physical downlink control channel (PDCCH), the physical downlink shared channel (PDSCH), and/or acknowledgement messaging (ACK/NACK) for downlink communications, and utilizing one or more of the physical uplink control channel (PUCCH), the PDCCH, and/or the physical uplink shared channel (PUSCH) for uplink communications. The configuration of self-contained slots and slot duration for uplink and/or downlink may be based on one or more of average packet size, average packet rate, traffic type and UE processing capabilities.

    5G New Radio Beam Refinement Procedure
    15.
    发明申请

    公开(公告)号:US20200228189A1

    公开(公告)日:2020-07-16

    申请号:US16736557

    申请日:2020-01-07

    申请人: Apple Inc.

    摘要: 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.

    Synchronization sequence design for device-to-device communication

    公开(公告)号:US10666489B2

    公开(公告)日:2020-05-26

    申请号:US16110377

    申请日:2018-08-23

    申请人: Apple Inc.

    IPC分类号: H04L27/26 H04W56/00

    摘要: 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.

    Transient Booster for Zero Static Loadline Switching Regulator

    公开(公告)号:US20200007036A1

    公开(公告)日:2020-01-02

    申请号:US16502752

    申请日:2019-07-03

    申请人: Apple Inc.

    发明人: Yang Li Adrian K. Ong

    IPC分类号: H02M3/158

    摘要: A zero static loadline switching regulator can include a controller having an integrating outer control loop that receives a first feedback signal corresponding regulator load and a reference signal and generates an intermediate feedback signal therefrom. The control circuit can also include an inner control loop that receives the intermediate feedback signal and a second feedback signal corresponding to a load on the regulator and generates an error signal used to control switching devices of the regulator. The control circuit can also include a transient response circuit configured to boost the error signal, for a predetermined time period after and responsive to a load transient. The error signal may be boosted to an intermediate value between its saturation level and its full scale level. The intermediate value may be predetermined or may be determined responsive to the magnitude of the load transient.