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公开(公告)号：US12027921B2
公开(公告)日：2024-07-02
申请号：US16953845
申请日：2020-11-20
发明人： Jungwoo Park , Cheo Park , Byoungsoo Ko , Dongbum Lee , Jonghyun Choi
IPC分类号： H02K1/27 , H02K1/14 , H02K1/18 , H02K1/2753 , H02K1/2791 , H02K5/08 , H02K15/02
CPC分类号： H02K1/2791 , H02K1/146 , H02K1/187 , H02K1/2753 , H02K5/08 , H02K15/02
摘要： A motor having a compact volume by reducing sizes in axial and radial directions includes a stator, and a rotor arranged outside the stator and rotated by electromagnetically interacting with the stator, wherein the rotor includes a ring-shaped back yoke, a plurality of magnets separately arranged inside of the back yoke along a circumferential direction of the back yoke, and a frame arranged to combine the back yoke and the plurality of magnets, and having an open side through which an outer surface of the back yoke is exposed to an outside of the frame.
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公开(公告)号：US11677284B2
公开(公告)日：2023-06-13
申请号：US16954638
申请日：2018-12-18
发明人： Incheol Hwang , Dongbum Lee , Jonghyun Choi
CPC分类号： H02K1/276 , H02K21/14 , H02K29/03 , H02K2213/03
摘要： A BLDC motor server includes a stator configured in a hollow cylindrical shape and comprising a plurality of teeth around which a plurality of coils is wound to form an electromagnetic field, respectively; and a rotor configured in a cylindrical shape rotatable within the stator and comprising a plurality of permanent magnets, each having an arched section in which an outer circumference side is extended in both directions from a rotation center side, wherein the plurality of permanent magnets is disposed, so that facing outer surface portions of two permanent magnets neighboring each other are adjacent to each other, and wherein a width Wo of the outer circumference side of each permanent magnet is configured to be smaller than a width Wc of the rotation center side thereof. The BLDC motor may reduce a noise and a vibration as well as increasing an efficiency of the motor.
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公开(公告)号：US11722635B2
公开(公告)日：2023-08-08
申请号：US17838738
申请日：2022-06-13
发明人： Jonghyun Choi , Sangmin Shim
IPC分类号： H04N7/01
CPC分类号： H04N7/0127
摘要： Provided are a processing device, an electronic device, and a method of outputting a video. The processing device includes a pull-down cadence detector configured to receive an input video stream generated by pulling down raw data from an external device, detect a pull-down cadence format indicating a rate at which the raw data is pulled down based on the input video stream, and output detection result information; and a pull-down cadence controller configured to output an output video stream having a second frame rate that is an integer multiple of a first frame rate of the raw data, based on the input video stream and the detection result information.
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4.发明授权公开(公告)号：US09704545B2
公开(公告)日：2017-07-11
申请号：US15175550
申请日：2016-06-07
发明人： Seong-Heon Yu , Jonghyun Choi , Dongwoo Sohn , Ki-Seok Oh
CPC分类号： G11C7/12 , G11C5/141 , G11C5/145 , G11C7/062 , G11C7/065 , G11C7/08 , G11C11/4074 , G11C11/4091 , G11C11/4094
摘要： A semiconductor memory device includes a plurality of memory cells, a plurality of word lines and a plurality of bit lines, wherein each memory cell is coupled to a respective word line and bit line. The semiconductor memory device includes a plurality of sense amplifiers, wherein each sense amplifier is coupled to two bit lines. The semiconductor memory device is configured to receive a first positive supply voltage, a second positive supply voltage, and a negative supply voltage, and determine a low level of an amplified voltage based on the negative supply voltage in an operation of amplifying data in a memory cell.
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