METHODS AND SYSTEMS FOR LINE-OF-SIGHT (LOS) MULTIPLE-INPUT AND MULTIPLE-OUTPUT (MIMO) COMMUNICATIONS WITH ANTENNA MISALIGNMENTS

    公开(公告)号:US20220107381A1

    公开(公告)日:2022-04-07

    申请号:US17199432

    申请日:2021-03-11

    Abstract: A system and a method are disclosed for estimating antenna misalignments in a line-of-sight wireless communication system and using the estimated antenna misalignments to form an optimal beam that may provide the best performance based on the channel conditions. A receiver determines a rotational estimate and a translational estimate of the receiver with respect to a transmitter, and sends feedback information to the transmitter that is used to determine an optimal beamforming matrix for LOS communications between the receiver and the transmitter. The feedback information includes estimated rotational angles and an estimated translational distance between the receiver and the transmitter, or includes an offset angle between a first plane of antennas of the receiver and a second plane of antennas of the transmitter, a normal vector of the first plane of antennas and the estimated translational distance. The antennas may be antenna arrays or single-element antennas.

    ELECTRONIC DEVICE AND METHOD FOR CHANGING LOCATION OF PREVIEW IMAGE ACCORDING TO DIRECTION OF CAMERA

    公开(公告)号:US20210365080A1

    公开(公告)日:2021-11-25

    申请号:US17394824

    申请日:2021-08-05

    Abstract: An electronic device is provided. The electronic device includes a first housing including a first face and a second face, a second housing including a third face and a fourth face, a folding part rotatably connecting the first housing and the second housing, a flexible display disposed on the first face and the third face, a camera exposed through at least a portion of the fourth face, a memory configured to store instructions, and a processor configured to determine an orientation of the electronic device and a direction in which the camera is pointed while a camera application is executed, identify the first area or the second area as an area in which a preview image acquired through the camera is displayed based at least on the determined direction and the determined orientation, and display the preview image, acquired through the camera, in the identified area using the flexible display.

    ELECTRONIC DEVICE FOR PROCESSING IMAGE AND IMAGE PROCESSING METHOD THEREOF

    公开(公告)号:US20210350509A1

    公开(公告)日:2021-11-11

    申请号:US17384789

    申请日:2021-07-25

    Abstract: Disclosed is an electronic device including a memory and a processor electrically connected with the memory. The memory stores instructions that, when executed, cause the processor to control the electronic device to: obtain information about a maximum value of brightness of image content based on metadata of the image content, to perform tone mapping on at least one or more frames corresponding to a preview image of the image content based on the information about the maximum value of the brightness, and to output the preview image based on the at least one or more frames on which the tone mapping is performed, on a display device.

    METHOD FOR DETECTING BLACK BAR INCLUDED IN VIDEO CONTENT, AND ELECTRONIC DEVICE THEREFOR

    公开(公告)号:US20210058671A1

    公开(公告)日:2021-02-25

    申请号:US16979939

    申请日:2019-03-13

    Abstract: Various embodiments of the present invention relate to a device and a method for detecting a black bar in video content in an electronic device. An electronic device comprises a display device, a processor, and a memory automatically connected with the processor, wherein the memory, when executed, can store instructions for allowing the processor to: play video content on the basis of a request relating to the playing of the video content; acquire, on the basis of the request relating to the playing of the video content, time information relating to the detection period of a black bar included in the video content; detect, on the basis of the time information, the black bar by using at least one image frame of the video content included in the detection period, when the detection period arrives while the video content is played; and adjust, on the basis of the black bar included in the video content and the resolution of the display device, the size of an image area of the video content being played. Other embodiments are also possible.

    SYSTEM AND METHODS FOR LOW COMPLEXITY LIST DECODING OF TURBO CODES AND CONVOLUTIONAL CODES

    公开(公告)号:US20190173497A1

    公开(公告)日:2019-06-06

    申请号:US16272653

    申请日:2019-02-11

    Abstract: A method, system, and non-transitory computer-readable recording medium of decoding a signal are provided. The method includes receiving signal to be decoded, where signal includes at least one symbol; decoding signal in stages, where each at least one symbol of signal is decoded into at least one bit per stage, wherein Log-Likelihood Ratio (LLR) and a path metric are determined for each possible path for each at least one bit at each stage; determining magnitudes of the LLRs; identifying K bits of the signal with smallest corresponding LLR magnitudes; identifying, for each of the K bits, L possible paths with largest path metrics at each decoder stage for a user-definable number of decoder stages; performing forward and backward traces, for each of the L possible paths, to determine candidate codewords; performing a Cyclic Redundancy Check (CRC) on the candidate codewords; and stopping after a first candidate codeword passes the CRC.

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