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公开(公告)号：US10566997B2
公开(公告)日：2020-02-18
申请号：US16158375
申请日：2018-10-12
Inventor： Je-Won Lee , Eun-Hee Hyun , Heung-Mook Kim , Joon-Young Jung
Abstract: A data compression apparatus includes a lossy compression unit for calculating, in advance, a reference error vector magnitude depending on lossy compression and decompression by removing lower bits from a data signal composed of bitstreams, for setting removal target lower bits satisfying a preset error vector magnitude requirement, and for lossily compressing the data signal by removing the removal target lower bits from the data signal, and a communication unit for transmitting the compressed data signal to a data decompression apparatus.
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2.发明授权公开(公告)号：US12284235B2
公开(公告)日：2025-04-22
申请号：US18503612
申请日：2023-11-07
Inventor： Joon-Young Jung , Je-Won Lee , Dong-Joon Choi , Eun-Hee Hyun
IPC: H04L65/61 , H04N21/218
Abstract: Disclosed herein are a hybrid download method and apparatus for multiview streaming. The hybrid download method includes requesting a group download for an n−1-th segment from a server, playing an n−3-th segment at a viewpoint VP1 of a viewer, when a group download request for the n−1-th segment is completed, making a group download request for an n-th segment, when a change in a viewpoint of the viewer occurs at a time at which an n−2-th segment is played, playing a low-quality n−2-th segment at a viewpoint VP3, when the group download for the n-th segment is completed, requesting a single download for a high-quality n−1-th segment corresponding to the viewpoint VP3 from the server, and when the single download for the high-quality n−1-th segment corresponding to the viewpoint VP3 is completed, playing the high-quality n−1-th segment at the viewpoint VP3.
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公开(公告)号：US11343062B2
公开(公告)日：2022-05-24
申请号：US16870241
申请日：2020-05-08
Inventor： Je-Won Lee , Joon-Young Jung , Dong-Joon Choi
Abstract: Disclosed herein are an apparatus and method for removing a self-interference signal. The apparatus includes one or more processors and executable memory for storing at least one program executed by the one or more processors. The at least one program receives an upstream signal for removing self-interference, generates a downstream signal for channel estimation, replicates a self-interference signal in a time domain and a self-interference signal in a frequency domain using the upstream signal and the downstream signal, and removes the self-interference signal from the upstream signal using the replicated self-interference signal in the time domain and the replicated self-interference signal in the frequency domain.
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公开(公告)号：US10469100B2
公开(公告)日：2019-11-05
申请号：US16208732
申请日：2018-12-04
Inventor： Eun-Hee Hyun , Je-Won Lee , Heung-Mook Kim , Joon-Young Jung , Tae-Kyoon Kim
Abstract: Disclosed herein are a method for transmitting and receiving compressed data and an apparatus therefor. According to the method for transmitting compressed data, a transmission apparatus for transmitting compressed data standardizes the value of an In-phase/Quadrature-phase (IQ) data sample to a preset type that is selected from among a positive number and a negative number, determines the sample type of the IQ data sample, the value of which is standardized to the preset type, based on a sample type determination rule, generates a compressed bit string based on the compression rule pertaining to the determined sample type, generates compressed data, including at least one of a reference bit corresponding to the sample type, the sign bit of the IQ data sample, and the compressed bit string, for each IQ data sample, and transmits the compressed data to a reception apparatus.
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