Patents by Inventor Myung Hoon Sunwoo

Myung Hoon Sunwoo has filed for patents to protect the following inventions. This listing includes patent applications that are pending as well as patents that have already been granted by the United States Patent and Trademark Office (USPTO).

  • Publication number: 20210288664
    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.
    Type: Application
    Filed: February 18, 2021
    Publication date: September 16, 2021
    Applicant: AJOU UNIVERSITY INDUSTRY-ACADEMIC COOPERATION FOUNDATION
    Inventors: Myung Hoon SUNWOO, Seung Yong KIM
  • Patent number: 11051716
    Abstract: Disclosed are a method and an apparatus for jaundice diagnosis based on an image. The method for jaundice diagnosis based on an image includes: receiving a jaundice diagnostic image acquired by photographing both a specific body part of a user and a reference object at a place where the user is positioned at present; generating color distortion information indicating a color distortion degree of the reference object included in the jaundice diagnostic image; generating a jaundice diagnostic correction image by correcting color distortion of the jaundice diagnostic image based on the color distortion information; and diagnosing a jaundice symptom for the user by using the jaundice diagnostic correction image.
    Type: Grant
    Filed: August 29, 2018
    Date of Patent: July 6, 2021
    Assignee: AJOU UNIVERSITY INDUSTRY-ACADEMIC COOPERATION FOUNDATION
    Inventors: Myung Hoon Sunwoo, Jung Won Lee, Jin Hong Kim
  • Publication number: 20210113147
    Abstract: As a method for diagnosing jaundice of a user based on an image by a jaundice diagnosis device, a jaundice diagnosis image is obtained including a jaundice diagnosis reference device divided into a first area and a second area, and a specific body part of a user located in the first area. The identification information of the jaundice diagnosis reference device inserted in the second area is extracted, and validity authentication of the identification information is requested through an interlocked authentication system. When the validity authentication success message is received from the authentication system, the user is diagnosed with jaundice based on the image of a specific body part located in the first area and the jaundice diagnosis comparison image included in the second area.
    Type: Application
    Filed: October 15, 2020
    Publication date: April 22, 2021
    Applicant: AJOU UNIVERSITY INDUSTRY-ACADEMIC COOPERATION FOUNDATION
    Inventors: Myung Hoon SUNWOO, Gi Jo AN
  • Patent number: 10945637
    Abstract: Disclosed are image based jaundice analyzing method and apparatus. The image based jaundice analyzing method according to an exemplary embodiment of the present disclosure includes: receiving an image for jaundice diagnosis obtained by photographing a specific body part of a user and a reference object in a location where the user is currently located; generating color distortion information representing a degree of color distortion of the reference object included in the image for jaundice diagnosis; generating a correction image for jaundice diagnosis by correcting the color distortion of the image for jaundice diagnosis based on the color distortion information; and diagnosing a jaundice symptom of the user using the correction image for jaundice diagnosis.
    Type: Grant
    Filed: December 27, 2017
    Date of Patent: March 16, 2021
    Assignee: AJOU UNIVERSITY INDUSTRY-ACADEMIC COOPERATION FOUNDATION
    Inventors: Jin Hong Kim, Myung Hoon Sunwoo, Jung Won Lee
  • Publication number: 20210045621
    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.
    Type: Application
    Filed: August 11, 2020
    Publication date: February 18, 2021
    Applicant: AJOU UNIVERSITY INDUSTRY-ACADEMIC COOPERATION FOUNDATION
    Inventors: Junghyeon BAE, Myung Hoon Sunwoo
  • Patent number: 10911070
    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.
    Type: Grant
    Filed: August 1, 2019
    Date of Patent: February 2, 2021
    Assignee: AJOU UNIVERSITY INDUSTRY-ACADEMIC COOPERATION FOUNDATION
    Inventors: Myung Hoon Sunwoo, Seo Rin Jung
  • Publication number: 20200266840
    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.
    Type: Application
    Filed: August 1, 2019
    Publication date: August 20, 2020
    Applicant: AJOU UNIVERSITY INDUSTRY-ACADEMIC COOPERATION FOUNDATION
    Inventors: Myung Hoon SUNWOO, Seo Rin JUNG
  • Patent number: 10341655
    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.
    Type: Grant
    Filed: April 15, 2016
    Date of Patent: July 2, 2019
    Assignee: AJOU UNIVERSITY INDUSTRY-ACADEMIC COOPERATION FOUNDATION
    Inventors: Myung Hoon Sunwoo, Tae Sun Kim
  • Publication number: 20190133472
    Abstract: According to another exemplary embodiment of the present disclosure, a method for monitoring a pressure in a biliary tract includes: receiving a measured value of a pressure in a biliary tract from a stent for a biliary tract having a pressure sensor mounted therein, by a subcutaneous implant medical device; collecting the measured value of the pressure at a predetermined cycle and transmitting collected information to an external device, by the subcutaneous implant medical device; and analyzing the collected information to expect a timing of biliary obstruction, and providing expected information to the patient, by the external device.
    Type: Application
    Filed: November 7, 2018
    Publication date: May 9, 2019
    Applicant: AJOU UNIVERSITY INDUSTRY-ACADEMIC COOPERATION FOUNDATION
    Inventors: Jin Hong KIM, Myung Hoon SUNWOO
  • Publication number: 20190114532
    Abstract: Disclosed are an apparatus and a method for a convolution operation of a convolution neural network. An apparatus for a convolution operation of a convolution neural network according to an exemplary embodiment of the present disclosure includes: an operation control unit that determines whether or not to perform the convolution operation based on the number of ‘0’ in a partial region of an input feature map; and an operation unit that performs the convolution operation of the partial region according to the determination of the operation control unit.
    Type: Application
    Filed: August 9, 2018
    Publication date: April 18, 2019
    Applicant: AJOU UNIVERSITY INDUSTRY-ACADEMIC COOPERATION FOUNDATION
    Inventors: Myung Hoon SUNWOO, Young Ho KIM
  • Publication number: 20190110716
    Abstract: Disclosed are a method and an apparatus for jaundice diagnosis based on an image. The method for jaundice diagnosis based on an image includes: receiving a jaundice diagnostic image acquired by photographing both a specific body part of a user and a reference object at a place where the user is positioned at present; generating color distortion information indicating a color distortion degree of the reference object included in the jaundice diagnostic image; generating a jaundice diagnostic correction image by correcting color distortion of the jaundice diagnostic image based on the color distortion information; and diagnosing a jaundice symptom for the user by using the jaundice diagnostic correction image.
    Type: Application
    Filed: August 29, 2018
    Publication date: April 18, 2019
    Applicant: AJOU UNIVERSITY INDUSTRY-ACADEMIC COOPERATION FOUNDATION
    Inventors: Myung Hoon SUNWOO, Jung Won LEE, Jin Hong KIM
  • Publication number: 20180177434
    Abstract: Disclosed are image based jaundice analyzing method and apparatus. The image based jaundice analyzing method according to an exemplary embodiment of the present disclosure includes: receiving an image for jaundice diagnosis obtained by photographing a specific body part of a user and a reference object in a location where the user is currently located; generating color distortion information representing a degree of color distortion of the reference object included in the image for jaundice diagnosis; generating a correction image for jaundice diagnosis by correcting the color distortion of the image for jaundice diagnosis based on the color distortion information; and diagnosing a jaundice symptom of the user using the correction image for jaundice diagnosis.
    Type: Application
    Filed: December 27, 2017
    Publication date: June 28, 2018
    Applicant: AJOU UNIVERSITY INDUSTRY-ACADEMIC COOPERATION FOUNDATION
    Inventors: Jin Hong KIM, Myung Hoon SUNWOO, Jung Won LEE
  • Publication number: 20180152711
    Abstract: Provided is a history based CU depth determining method. A history based CU depth determining method according to an exemplary embodiment of the present disclosure is a method for determining depths of a plurality of coding units (CU) included in each of a plurality of coding tree units (CTU) which configures a frame of a video, including: dividing a plurality of previous CTUs of a plurality of previous frames which are the same position as a current CTU of a current frame into a plurality of areas to generate depth history information including information of a CU depth for each of the plurality of areas; determining a plurality of depth candidates for a CU depth for each of the plurality of areas of the current CTU, based on the depth history information; and selecting an optimal CU depth among the plurality of depth candidates for each of the plurality of areas of the current CTU, through a rate-distortion cost (RD-cost) calculation.
    Type: Application
    Filed: November 21, 2017
    Publication date: May 31, 2018
    Applicant: AJOU UNIVERSITY INDUSTRY-ACADEMIC COOPERATION FOUNDATION
    Inventors: Myung Hoon SUNWOO, Jong Hyun BAE
  • Patent number: 9503124
    Abstract: Provided is a method of decoding a low-density parity-check code (LDPC). The decoding method including an initialization process, a check node update process, a variable node update process, a tentative decoding process, and a parity check process, for a plurality of check nodes and a plurality of variable nodes, further includes detecting at least one inactive variable nodes that do not require variable node update among the variable nodes, the variable node update process is performed only on active variable nodes except for the inactive variable node, and the check node update process is performed without using the inactive variable node.
    Type: Grant
    Filed: November 10, 2014
    Date of Patent: November 22, 2016
    Assignee: Ajou University Industry-Academic Cooperation Foundation
    Inventors: Myung Hoon Sunwoo, Byung Jun Choi
  • Publication number: 20160309145
    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.
    Type: Application
    Filed: April 15, 2016
    Publication date: October 20, 2016
    Applicant: AJOU UNIVERSITY INDUSTRY-ACADEMIC COOPERATION FOUNDATION
    Inventors: Myung Hoon SUNWOO, Tae Sun KIM
  • Patent number: 9317934
    Abstract: Provided are a motion estimation method and a motion estimation apparatus. The motion estimation apparatus includes a first register storing information on whether to detect first detection positions, a second register storing information on distances and number information of valid distance information, a controller receiving a command, a shifter, in response to the shift-enable signal, shifting and outputting reference data in a detection region of a reference frame and outputting the received reference data as it is, a selector, in response to the selection signal, selecting and outputting a part of output data of the shifter or outputting the whole output data, a process element (PE) array receiving current data of a current frame, and a comparator generating operation results for respective block sizes using operation results of the plurality of the PEGs.
    Type: Grant
    Filed: October 19, 2012
    Date of Patent: April 19, 2016
    Assignee: AJOU UNIVERSITY INDUSTRY COOPERATION FOUNDATION
    Inventors: Myung Hoon Sunwoo, Ho Il Bang
  • Publication number: 20150303944
    Abstract: Provided is a method of decoding a low-density parity-check code (LDPC). The decoding method including an initialization process, a check node update process, a variable node update process, a tentative decoding process, and a parity check process, for a plurality of check nodes and a plurality of variable nodes, further includes detecting at least one inactive variable nodes that do not require variable node update among the variable nodes, the variable node update process is performed only on active variable nodes except for the inactive variable node, and the check node update process is performed without using the inactive variable node.
    Type: Application
    Filed: November 10, 2014
    Publication date: October 22, 2015
    Inventors: Myung Hoon SUNWOO, Byung Jun CHOI
  • Publication number: 20140301656
    Abstract: Provided are a motion estimation method and a motion estimation apparatus. The motion estimation apparatus includes a first register storing information on whether to detect first detection positions, a second register storing information on distances and number information of valid distance information, a controller receiving a command, a shifter, in response to the shift-enable signal, shifting and outputting reference data in a detection region of a reference frame and outputting the received reference data as it is, a selector, in response to the selection signal, selecting and outputting a part of output data of the shifter or outputting the whole output data, a process element (PE) array receiving current data of a current frame, and a comparator generating operation results for respective block sizes using operation results of the plurality of the PEGs.
    Type: Application
    Filed: October 19, 2012
    Publication date: October 9, 2014
    Applicant: AJOU UNIVERSITY INDUSTRY COOPERATION FOUNDATION
    Inventors: Myung Hoon Sunwoo, Ho Il Bang
  • Patent number: 8200730
    Abstract: The present invention relates to computing circuits and method for running an MPEG-2 AAC or MPEG-4 AAC algorithm efficiently, which is used as an audio compression algorithm in multi-channel high-quality audio systems, on programmable processors. In accordance with the present invention, the IMDCT process which takes large part of the amount of the operations in implementation of an MPEG-2/4 AAC algorithm can be performed in efficient. In addition, while the architecture of the existing digital signal processor is still used, the performance can be improved by means of the addition of the architecture of the address generator, Huffman decoder, and bit processing architecture. After all, to design and change the programmable processor is facilitated.
    Type: Grant
    Filed: September 13, 2010
    Date of Patent: June 12, 2012
    Assignee: Pulsus Technologies
    Inventors: Jong Hoon Oh, Myung Hoon Sunwoo, Jong Ha Moon
  • Publication number: 20110150143
    Abstract: Disclosed is a demapping method of a soft-decision of an efficient soft determining scheme which is applicable to a DVB-2 satellite communication system. The soft-decision demapping method for a digital signal received through a transmission channel in a communication system using a phase shift keying (PSK) scheme includes: selecting reference symbols in an area having a higher probability than a predetermined probability that the received signal will be positioned among all reference symbols on a constellation diagram using a most significant bit (MSB) value of the received signal; and acquiring a maximum value of a log likelihood ratio (LLR) for the selected reference symbols.
    Type: Application
    Filed: October 29, 2010
    Publication date: June 23, 2011
    Applicant: ELECTRONICS AND TELECOMMUNICATIONS RESEARCH INSTITUTE
    Inventors: Jae Hee Han, Pan Soo Kim, Dae Ig Chang, Jang Woong Park, Myung Hoon Sunwoo