SPATIAL TEMPORAL PHASE SHIFTED POLARITY AWARE DITHER

    公开(公告)号:US20170358255A1

    公开(公告)日:2017-12-14

    申请号:US15438448

    申请日:2017-02-21

    Applicant: Apple Inc.

    CPC classification number: G09G3/2055 G09G3/2022 G09G2320/0247 G09G2320/0666

    Abstract: This application relates to performing certain dithering processes to eliminate display artifacts such as flicker, which can be caused by charge accumulation at the display. The dither process can be performed by a display controller that uses a group lookup method for identifying groups of dithering patterns that can be combined to expand a number of color values available to the display. The dither process can also be performed as a temporal process that incorporates groups of dithering patterns into frames and shifts a spatial arrangement of the groups of dithering patterns over a sequence of frames. Additionally, the dither process can incorporate counters that count the number of times a particular spatial arrangement of dithering patterns has been used in a sequence of frames in order that each spatial arrangement of dithering patterns will share an average count with other spatial arrangements over a sequence of frames.

    Adaptive Channel Estimation for Power Optimization for Narrow Band Systems

    公开(公告)号:US20190044660A1

    公开(公告)日:2019-02-07

    申请号:US16050957

    申请日:2018-07-31

    Applicant: APPLE INC.

    Abstract: A device, system and method for determining when to initiate certain operations associated with received data. The method is performed at a device connected to a network. The method includes estimating a first number of repetitions of a subframe which is associated with a likelihood that the device will successfully perform an operation based on the subframe. The method further includes delaying initiating the operation for the subframe until a received number of repetitions of the subframe is greater than or equal to the first number of repetitions.

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