公开(公告)号：US11632134B2

公开(公告)日：2023-04-18

申请号：US17455729

申请日：2021-11-19

Applicant: AJOU UNIVERSITY INDUSTRY-ACADEMIC COOPERATION FOUNDATION

Inventor： Myung Hoon Sunwoo ,  Chan Hwangbo ,  U Seok Lee

IPC: H03M13/00 ,  H03M13/13 ,  G06F11/10

Abstract: An apparatus for inserting an error correction code according to an embodiment includes an identifier configured to identify a plurality of critical sets included in a codeword generated using a polar code, based on the number of information bits and a total code length of the codeword, a divider configured to divide the codeword into a plurality of partitions, and an inserter configured to insert an error correction code into each of the divided partitions based on a distribution position of each of the plurality of critical sets.

公开(公告)号：US11483012B2

公开(公告)日：2022-10-25

申请号：US17178356

申请日：2021-02-18

Applicant: AJOU UNIVERSITY INDUSTRY-ACADEMIC COOPERATION FOUNDATION

Inventor： Myung Hoon Sunwoo ,  Seung Yong Kim

IPC: H03M13/29 ,  H03M13/09 ,  H03M13/13 ,  H03M13/11

Abstract: A method for decoding a signal encoded with polar codes by a decoding system is provided. The method comprises receiving, from a transmission system, a signal in which a plurality of cyclic redundancy checks (CRCs) are encoded by the polar codes, the plurality of CRCs being inserted into positions determined based on a plurality of information bits, a number of the plurality of information bits and a total code length, and decoding a code section including bits ranging from a first bit of the signal to a position where a last bit of a first CRC is inserted. The method further comprises re-performing successive cancellation flip decoding for the decoded code section, or determining whether to decode a next code section adjacent to the decoded code section, based on whether a CRC is detected in the decoded code section.

公开(公告)号：US20210045621A1

公开(公告)日：2021-02-18

申请号：US16990130

申请日：2020-08-11

Applicant: AJOU UNIVERSITY INDUSTRY-ACADEMIC COOPERATION FOUNDATION

Inventor： Junghyeon BAE ,  Myung Hoon Sunwoo

IPC: A61B1/045 ,  A61B1/04 ,  A61B1/00 ,  G06T7/11 ,  G06T7/00

Abstract: As a capsule endoscope control method in a receiving device interworking with the capsule endoscope, it is determined whether a lesion is detected in the digestive organ from the digestive organ image, upon receiving a digestive organ image for a digestive organ taken by the capsule endoscope. Depending on whether a lesion is detected and whether the digestive organ falls within a predetermined region of interest, a control signal is generated so that the capsule endoscope operates in one of a plurality of modes and transmitted to the capsule endoscope. Then, the capsule endoscope is controlled to capture the digestive organ in one of the plurality of modes.

公开(公告)号：US10911070B2

公开(公告)日：2021-02-02

申请号：US16528967

申请日：2019-08-01

Applicant: AJOU UNIVERSITY INDUSTRY-ACADEMIC COOPERATION FOUNDATION

Inventor： Myung Hoon Sunwoo ,  Seo Rin Jung

IPC: H03M13/37 ,  H03M13/13

Abstract: The present disclosure a method of decoding a polar code based on a shared node, the method includes extracting an input node from target data that are data to be decoded, by an extractor, sorting the input node as one of a first node of which the pattern of the frozen bit satisfies a predetermined first reference, a second node of which the pattern of the information bit satisfies a predetermined second reference, and a third node that is not the first node and the second node, by a sorter, calculating at least one codeword candidate and at least one path metric that correspond to the input node in accordance with the sorting result by a calculator, finishing decoding the target data by iterating the extracting, the sorting as one, and the calculating of at least one path metric by a controller.

公开(公告)号：US10341655B2

公开(公告)日：2019-07-02

申请号：US15130403

申请日：2016-04-15

Applicant: AJOU UNIVERSITY INDUSTRY-ACADEMIC COOPERATION FOUNDATION

Inventor： Myung Hoon Sunwoo ,  Tae Sun Kim

IPC: H04N19/11 ,  H04N19/593 ,  H04N19/147

Abstract: Disclosed is a high efficiency video coding (HEVC) encoding device including a candidate group updater configured to select a plurality of representative modes as a candidate group from among intra-prediction modes and update the candidate group using a plurality of minimum modes selected from the candidate group, the plurality of representative modes each representing a range where there is an optimal mode, and an optimal mode selector configured to select any one mode as an optimal mode from among a plurality of minimum modes selected from the updated candidate group.