Patents by Inventor Byung-Jun Lee

Byung-Jun Lee 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).

  • Patent number: 11604950
    Abstract: The present disclosure relates to a method and an apparatus for classifying data points using convex hulls based on centroids of clusters, and a method for classifying data points according to one embodiment of the present disclosure comprises clustering data points into a plurality of clusters; constructing a hyperplane by using a set of centroids of singular clusters having a single class label from the plurality of clusters and removing singular clusters whose centroids are not used to construct the hyperplane; generating a convex hull for a singular cluster used to construct the hyperplane; removing internal data points except for the vertices of the generated convex hull from the singular cluster whose centroid is used to construct the hyperplane; and classifying a set of remaining data points except for the removed internal data points among the plurality of clusters.
    Type: Grant
    Filed: January 11, 2021
    Date of Patent: March 14, 2023
    Assignee: Research & Business Foundation Sungkyunkwan University
    Inventors: Hee Yong Youn, Byung Jun Lee, Kyung Tae Kim, Pardis Birzhandi, Min Woo Kim, Tae Ho Lee
  • Publication number: 20220105735
    Abstract: An example jam removal structure can include a transporting roller transporting a print medium along a transporting path, an Inner-side guide, and first and second guides facing the inner-side guide to form the transporting path and located in an upstream side and a downstream side of the transporting roller based on a transport direction of the print medium to be rotatable to an open position opening the transporting path and a path formation position forming the transporting path. The example jam removal structure can include an operating lever connected to each of the first and second guides by first and second connecting members to switch the first and second guides to the open position or the path formation position and an elastic member applying an elastic force to the first and second guides in a direction rotating toward the path formation position.
    Type: Application
    Filed: January 31, 2020
    Publication date: April 7, 2022
    Applicant: Hewlett-Packard Development Company, L.P.
    Inventors: SeungSup Lee, Youngsoo Ko, Byung-Jun Lee
  • Publication number: 20220007955
    Abstract: According to an embodiment of the present disclosure, there is a wearable electronic device, comprising: a first sensor configured to sense a movement of the electronic device; a second sensor configured to sense a biological signal for a user wearing the electronic device; and a processor configured to compute a movement value of the electronic device using the first sensor, to detect a resting state when the movement value lasts within a predetermined first threshold range during a first time period, and to configure biological information of the user based on a biological signal measured after detection of the resting state.
    Type: Application
    Filed: September 27, 2021
    Publication date: January 13, 2022
    Inventors: Jeong-Gwan KANG, Byung-Jun LEE, Hyun-Su HONG, Seung-Hyuck SHIN, Sun-Young PARK
  • Publication number: 20210216832
    Abstract: The present disclosure relates to a method and an apparatus for classifying data points using convex hulls based on centroids of clusters, and a method for classifying data points according to one embodiment of the present disclosure comprises clustering data points into a plurality of clusters; constructing a hyperplane by using a set of centroids of singular clusters having a single class label from the plurality of clusters and removing singular clusters whose centroids are not used to construct the hyperplane; generating a convex hull for a singular cluster used to construct the hyperplane; removing internal data points except for the vertices of the generated convex hull from the singular cluster whose centroid is used to construct the hyperplane; and classifying a set of remaining data points except for the removed internal data points among the plurality of clusters.
    Type: Application
    Filed: January 11, 2021
    Publication date: July 15, 2021
    Applicant: RESEARCH & BUSINESS FOUNDATION SUNGKYUNKWAN UNIVERSITY
    Inventors: Hee Yong YOUN, Byung Jun LEE, Kyung Tae KIM, Pardis Birzhandi, Min Woo KIM, Tae Ho LEE
  • Patent number: 10390140
    Abstract: Disclosed is an output device that outputs an audio signal. An output device which outputs an audio signal includes a battery, a sensing module including a plurality of sensors, a communication circuit configured to communicate with at least one of an external electronic device and another output device coupled to the output device, and a processor electrically connected with the battery, the sensing module, and the communication circuit. The processor is configured to obtain information about a level of the battery, to obtain information about a level of another battery included in the another output device using the communication circuit, and to assign a task associated with one of the plurality of sensors to the output device and/or the another output device based on the information about the level of the battery and the information about the level of the another battery.
    Type: Grant
    Filed: October 2, 2017
    Date of Patent: August 20, 2019
    Assignee: Samsung Electronics Co., Ltd.
    Inventors: Yun Hwa Seo, Na Rin Kim, Byung Jun Lee, Jeong Gwan Kang
  • Patent number: 10275200
    Abstract: An electronic device may measure a user's exercise or other activity and output intuitive information regarding the activity. The electronic device may include a sensor that senses a movement of the electronic device. A processor may determine types of activity states of specified unit times, and determine a specific activity state as a representative activity state of a specified time range based on distribution of the activity states of the specified unit times. The processor may output information corresponding to a determined representative activity state. Short bursts of secondary activity which occur during the specified time range may be omitted in the output information.
    Type: Grant
    Filed: August 3, 2016
    Date of Patent: April 30, 2019
    Assignee: Samsung Electronics Co., Ltd.
    Inventors: Jeong Gwan Kang, Byung Jun Lee, Yun Hwa Seo, Sun Young Park, Seung Hyuck Shin, Hyun Su Hong
  • Publication number: 20180103321
    Abstract: Disclosed is an output device that outputs an audio signal. An output device which outputs an audio signal includes a battery, a sensing module including a plurality of sensors, a communication circuit configured to communicate with at least one of an external electronic device and another output device coupled to the output device, and a processor electrically connected with the battery, the sensing module, and the communication circuit. The processor is configured to obtain information about a level of the battery, to obtain information about a level of another battery included in the another output device using the communication circuit, and to assign a task associated with one of the plurality of sensors to the output device and/or the another output device based on the information about the level of the battery and the information about the level of the another battery.
    Type: Application
    Filed: October 2, 2017
    Publication date: April 12, 2018
    Inventors: Yun Hwa SEO, Na Rin KIM, Byung Jun LEE, Jeong Gwan KANG
  • Patent number: 9731918
    Abstract: An image forming apparatus and roller separation device are provided. The image forming apparatus including a main body having a print unit, a first paper feeding unit containing print paper and insertable in or pullable from the main body, a feed roller in the main body feeding the print paper from the first paper feeding unit to the print unit and comprising a driven roller contacting a driving roller, an elastic member applying an elastic force to the driven roller in a direction to contact the driving roller, a handle member in the main body movable to a first position and a second position, and a separation member connected to the handle member and switched to a normal position separated from the driven roller and a separation position separating the driven roller from the driving roller.
    Type: Grant
    Filed: April 10, 2015
    Date of Patent: August 15, 2017
    Assignee: S-PRINTING SOLUTION CO., LTD.
    Inventor: Byung-jun Lee
  • Publication number: 20170046108
    Abstract: An electronic device may measure a user's exercise or other activity and output intuitive information regarding the activity. The electronic device may include a sensor that senses a movement of the electronic device. A processor may determine types of activity states of specified unit times, and determine a specific activity state as a representative activity state of a specified time range based on distribution of the activity states of the specified unit times. The processor may output information corresponding to a determined representative activity state. Short bursts of secondary activity which occur during the specified time range may be omitted in the output information.
    Type: Application
    Filed: August 3, 2016
    Publication date: February 16, 2017
    Inventors: Jeong Gwan KANG, Byung Jun LEE, Yun Hwa SEO, Sun Young PARK, Seung Hyuck SHIN, Hyun Su HONG
  • Publication number: 20170035309
    Abstract: According to an embodiment of the present disclosure, there is a wearable electronic device, comprising: a first sensor configured to sense a movement of the electronic device; a second sensor configured to sense a biological signal for a user wearing the electronic device; and a processor configured to compute a movement value of the electronic device using the first sensor, to detect a resting state when the movement value lasts within a predetermined first threshold range during a first time period, and to configure biological information of the user based on a biological signal measured after detection of the resting state.
    Type: Application
    Filed: October 19, 2016
    Publication date: February 9, 2017
    Inventors: Jeong-Gwan KANG, Byung-Jun LEE, Hyun-Su HONG, Seung-Hyuck SHIN, Sun-Young PARK
  • Patent number: 9510790
    Abstract: According to an embodiment of the present disclosure, there is a wearable electronic device, comprising: a first sensor configured to sense a movement of the electronic device; a second sensor configured to sense a biological signal for a user wearing the electronic device; and a processor configured to compute a movement value of the electronic device using the first sensor, to detect a resting state when the movement value lasts within a predetermined first threshold range during a first time period, and to configure biological information of the user based on a biological signal measured after detection of the resting state.
    Type: Grant
    Filed: December 18, 2015
    Date of Patent: December 6, 2016
    Assignee: Samsung Electronics Co., Ltd.
    Inventors: Jeong-Gwan Kang, Byung-Jun Lee, Hyun-Su Hong, Seung-Hyuck Shin, Sun-Young Park
  • Publication number: 20160249864
    Abstract: According to an embodiment of the present disclosure, there is a wearable electronic device, comprising: a first sensor configured to sense a movement of the electronic device; a second sensor configured to sense a biological signal for a user wearing the electronic device; and a processor configured to compute a movement value of the electronic device using the first sensor, to detect a resting state when the movement value lasts within a predetermined first threshold range during a first time period, and to configure biological information of the user based on a biological signal measured after detection of the resting state.
    Type: Application
    Filed: December 18, 2015
    Publication date: September 1, 2016
    Inventors: Jeong-Gwan KANG, Byung-Jun LEE, Hyun-Su HONG, Seung-Hyuck SHIN, Sun-Young PARK
  • Patent number: 9411479
    Abstract: A touch panel including a touch sensor is disclosed. In one aspect, the touch panel includes a substrate, a first touch electrode layer and a second touch electrode layer formed over the substrate and an insulating layer interposed between the first and second touch electrode layers. The first touch electrode layer includes a plurality of first touch electrodes each configured to independently receive a driving signal. Each of the first touch electrodes includes a plurality of sub-electrodes arranged at a predetermined interval and a plurality of sub-electrode connectors electrically connecting the sub-electrodes to each other.
    Type: Grant
    Filed: August 13, 2014
    Date of Patent: August 9, 2016
    Assignee: Samsung Display Co., Ltd.
    Inventors: Tae Joon Kim, Byung-Jun Lee, Kwan Young Han, Hwan-Hee Jeong
  • Publication number: 20160016741
    Abstract: An image forming apparatus and roller separation device are provided. The image forming apparatus including a main body having a print unit, a first paper feeding unit containing print paper and insertable in or pullable from the main body, a feed roller in the main body feeding the print paper from the first paper feeding unit to the print unit and comprising a driven roller contacting a driving roller, an elastic member applying an elastic force to the driven roller in a direction to contact the driving roller, a handle member in the main body movable to a first position and a second position, and a separation member connected to the handle member and switched to a normal position separated from the driven roller and a separation position separating the driven roller from the driving roller.
    Type: Application
    Filed: April 10, 2015
    Publication date: January 21, 2016
    Applicant: Samsung Electronics Co., Ltd.
    Inventor: Byung-jun LEE
  • Publication number: 20150287381
    Abstract: A touch panel including a touch sensor is disclosed. In one aspect, the touch panel includes a substrate, a first touch electrode layer and a second touch electrode layer formed over the substrate and an insulating layer interposed between the first and second touch electrode layers. The first touch electrode layer includes a plurality of first touch electrodes each configured to independently receive a driving signal. Each of the first touch electrodes includes a plurality of sub-electrodes arranged at a predetermined interval and a plurality of sub-electrode connectors electrically connecting the sub-electrodes to each other.
    Type: Application
    Filed: August 13, 2014
    Publication date: October 8, 2015
    Inventors: Tae Joon Kim, Byung-Jun Lee, Kwan Young Han, Hwan-Hee Jeong
  • Publication number: 20140003022
    Abstract: A flat panel display device includes a film substrate having a pixel region and a non-pixel region defined therein, at least two pad parts formed at the non-pixel region, and at least one hole formed between the pad parts adjacent to each other, wherein the pixel region has a plurality of pixels arranged therein and a non-pixel region is disposed around the pixel region.
    Type: Application
    Filed: November 14, 2012
    Publication date: January 2, 2014
    Inventor: Byung-Jun LEE
  • Patent number: 8480075
    Abstract: An image forming apparatus having a pickup roller rotated to pick up a printing medium. The image forming apparatus includes support members operated in connection with the rotation of the pickup roller, and the pickup of the printing medium is carried out under the condition that both sides of the printing medium are supported by the support members. The image forming apparatus thereby prevents jams generated in the process of picking up a deformed printing medium.
    Type: Grant
    Filed: December 7, 2009
    Date of Patent: July 9, 2013
    Assignee: Samsung Electronics Co., Ltd.
    Inventor: Byung Jun Lee
  • Patent number: 8243689
    Abstract: Disclosed herein is a handover method and apparatus for providing mobile Internet Protocol Television (IPTV) service over wireless communication networks. The handover method includes checking whether the strength of a signal received from a first base station of a serving first wireless network falls within a predetermined first threshold range; if the strength of the signal falls within the range, checking whether the strength of a signal received from at least one base station of a second wireless network is higher than a second threshold value required for handover; estimating the velocity and direction of a Mobile Node (MN) using location information received from a satellite; predicting a handover target base station using the estimated velocity and estimated location information; and, if the predicted target base station is one of base stations having the second threshold value, performing handover to the target base station.
    Type: Grant
    Filed: February 25, 2010
    Date of Patent: August 14, 2012
    Assignee: Sungkyunkwan University Foundation for Corporate Collaboration
    Inventors: Hee Yong Youn, Kyung Tae Kim, Byung Jun Lee
  • Publication number: 20120099244
    Abstract: Provided is a supercapacitor electrode that is coupled on one side or both sides of a collector, in which the supercapacitor electrode consists of a carbon material that forms an electric double layer, in which the carbon material consists of: a powder-shaped electrode active material; a powder-shaped conductive material; and a fibrous carbon material of a aspect ratio of 3-33. The supercapacitor electrode can be implemented into a high-capacitance or high-power supercapacitor together with low equivalent series resistance.
    Type: Application
    Filed: July 2, 2009
    Publication date: April 26, 2012
    Applicant: AMOGREENTECH CO., LTD.
    Inventors: Byung Jun Lee, Byeong Sun Lee, Tae Gyun Kim, Jung Ae Kim, Byoung Kyu Kim
  • Publication number: 20120028116
    Abstract: This invention relates to a composition for producing a cathode for an electricity storage device, including carbon nanofibers prepared by electrospinning a spinning solution including a cathode active material, a conductive material and a carbon fiber precursor; and a binder, and to a cathode for an electricity storage device made with the composition and to an electricity storage device including the cathode. The composition for producing a cathode includes carbon nanofibers instead of part or all of a conductive material, a dispersant and/or a binder, so that the cathode has remarkably increased specific surface area and electrical conductivity (decreased resistance), thus maximizing the efficiency of the cathode active material and the capacity.
    Type: Application
    Filed: February 17, 2010
    Publication date: February 2, 2012
    Inventors: Won-Gil Choi, Kim Pyung-Kyu, Jun-Hwan Jeong, Byeong-Sun Lee, Song-Yi Choi, Jung-Ae Kim, Byung-Jun Lee