Signal processing device and image display apparatus including the same

    公开(公告)号:US11676533B2

    公开(公告)日:2023-06-13

    申请号:US17733884

    申请日:2022-04-29

    Inventor: Sungjin Park

    CPC classification number: G09G3/3225 G09G3/3275 G09G2310/027 G09G2320/0233

    Abstract: A signal processing device and an image display apparatus including the same are disclosed. The image display apparatus includes a display including an organic light emitting diode panel and a signal processor configured to control the display, wherein the signal processor is configured to perform luminance conversion based on a first luminance conversion pattern in the case in which the luminance level of an input image is greater a first level and to perform luminance conversion based on a second luminance conversion pattern having a higher luminance level than the first luminance conversion pattern in the case in which the luminance level of the input image is equal to or less than the first level, whereby low gray level expression of the organic light emitting diode panel is improved.

    Method for transmitting and receiving signal in wireless LAN system and apparatus therefor

    公开(公告)号:US11356160B2

    公开(公告)日:2022-06-07

    申请号:US16960011

    申请日:2018-12-28

    Abstract: Proposed are a method and an apparatus for transmitting a signal by performing MIMO beamforming in a wireless LAN system. Specifically, a first STA performs MIMO beamforming during a second STA and TDD-based SP. The first STA transmits a signal to the second STA on the basis of a result of the MIMO beamforming. The SP includes a plurality of TDD slots. The MIMO beamforming includes a first sub-step and a second sub-step. In the first sub-step, after receiving a first MIMO beamforming setup frame from the second STA, the first STA transmits a second MIMO beamforming setup frame in the first allocated TDD slot among the TDD slots allocated to the first STA. In the second sub-step, after receiving a first MIMO beamforming feedback frame from the second STA, the first STA transmits a second MIMO beamforming feedback frame in a first allocated TDD slot among the TDD slots allocated to the first STA.

    Method for transmitting and receiving signal in wireless LAN system, and apparatus therefor

    公开(公告)号:US10993125B2

    公开(公告)日:2021-04-27

    申请号:US16799553

    申请日:2020-02-24

    Abstract: The present specification proposes a method for transmitting and receiving a signal, and an apparatus therefor, and more specifically, a method for transmitting, by a first station (STA), a signal to a second STA in a wireless LAN (WLAN) system, the method comprising the steps of: generating a training field including a basic training subfield for each spatial-temporal stream and a training subfield for each spatial-temporal stream on the basis of the total number of spatial-temporal streams, wherein the basic training subfield for each spatial-temporal stream is composed of M (M is a natural number) orthogonal frequency division multiplexing (OFDM) symbols on the basis of the information indicated by a header field; and transmitting a signal including the header field and the training field to the second STA through a corresponding spatial-temporal stream.

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