WIRELESS COMMUNICATION DEVICES AND CHANNEL ESTIMATION METHODS THEREOF

    公开(公告)号:US20180183628A1

    公开(公告)日:2018-06-28

    申请号:US15797473

    申请日:2017-10-30

    CPC classification number: H04L25/0228 H04B7/0456 H04L25/0222

    Abstract: Provided are a wireless communication apparatus and a channel estimation methods of the wireless communication apparatus. The channel estimation methods includes receiving a first sub-frame and a second sub-frame, the first sub-frame including a plurality of first reference signals pre-coded based on a first pre-coding matrix and the second sub-frame including a plurality of second reference signals pre-coded based on a second pre-coding matrix; determining whether the first pre-coding matrix and the second pre-coding matrix are the same, based on a channel variation in the time domain; and performing, in response to determining that the first pre-coding matrix and the second pre-coding matrix are the same, channel estimation with respect to a resource element included in the second sub-frame based on at least of the plurality of first reference signals and at least one of the plurality of second reference signals.

    ROLLABLE DISPLAY DEVICE
    12.
    发明申请

    公开(公告)号:US20170329369A1

    公开(公告)日:2017-11-16

    申请号:US15669335

    申请日:2017-08-04

    Abstract: A rollable display device is provided. The rollable display device includes first and second bodies, a display, a roller supported in the first body to be rotatable, to which one end portion of the display in a length direction of the display is fixed and around an outer circumference of which the display is wound, and a support member a plurality of segmented links connected to pivot around a hinge shaft perpendicular to an image display surface, the support member being accommodated in an accommodation unit provided in the first body. As the first body is separated from the second body, the display is unwound from the roller and is unrolled outward from the first body to expand in the length direction, and the support member is unrolled outward from the first body in the length direction to support a rear surface of the display.

    FUEL CELL STACK INCLUDING END PLATE HAVING INSERTION HOLE
    14.
    发明申请
    FUEL CELL STACK INCLUDING END PLATE HAVING INSERTION HOLE 有权
    燃料电池堆栈,包括具有插入孔的终板

    公开(公告)号:US20150093675A1

    公开(公告)日:2015-04-02

    申请号:US14264247

    申请日:2014-04-29

    CPC classification number: H01M8/04201 H01M8/2465 H01M8/2483 H01M2008/1095

    Abstract: A fuel cell stack includes a stack including a plurality of unit cells, which is stacked on one another in a predetermined direction, first and second end plates disposed on opposing ends of the stack, and a supply line disposed on a first surface of the first end plate to supply fuel or air to the plurality of unit cells, where an insertion hole is defined in a second surface of the first end plate to be adjacent to the supply line, and the second surface of the first end plate is substantially perpendicular to the first surface of the first end plate.

    Abstract translation: 一种燃料电池堆包括堆叠,该叠层包括在预定方向上彼此堆叠的多个单电池,布置在堆叠的相对端的第一和第二端板以及设置在第一 向多个单元电池供应燃料或空气,其中在所述第一端板的第二表面中限定了与所述供应管线相邻的插入孔,并且所述第一端板的第二表面基本上垂直于 第一端板的第一表面。

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