Patents by Inventor Seung Jun Cha

Seung Jun Cha 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: 11042394
    Abstract: Disclosed is an apparatus and method of processing input and output in a multi-kernel system. A method of processing input and output in a multi-kernel system according to the present disclosure includes: setting a shared memory between a first kernel on a main processor and a lightweight kernel on a parallel processor; setting a data transmission and reception channel between the first kernel on the main processor and the lightweight kernel on the parallel processor using the shared memory; providing, on the basis of the data transmission and reception channel, an input/output task that occurs in the lightweight kernel to the first kernel on the main processor; processing, by the first kernel on the main processor, an operation corresponding to the input/output task; and providing a result of the processing to the lightweight kernel.
    Type: Grant
    Filed: October 12, 2018
    Date of Patent: June 22, 2021
    Assignee: ELECTRONICS AND TELECOMMUNICATIONS RESEARCH INSTITUTE
    Inventors: Seung Jun Cha, Jin Mee Kim, Seung Hyub Jeon, Sung In Jung, Yeon Jeong Jeong
  • Patent number: 10296379
    Abstract: Scheduling threads in a system with many cores includes generating a thread map where a connection relationship between a plurality of threads is represented by a frequency of inter-process communication (IPC) between threads, generating a core map where a connection relationship between a plurality of cores is represented by a hop between cores, and respectively allocating the plurality of threads to the plurality of cores defined by the core map, based on a thread allocation policy defining a mapping rule between the thread map and the core map.
    Type: Grant
    Filed: March 17, 2017
    Date of Patent: May 21, 2019
    Assignee: ELECTRONICS AND TELECOMMUNICATIONS RESEARCH INSTITUTE
    Inventors: Kang Ho Kim, Kwang Won Koh, Jin Mee Kim, Jeong Hwan Lee, Seung Hyub Jeon, Sung In Jung, Yeon Jeong Jeong, Seung Jun Cha
  • Publication number: 20190114193
    Abstract: Disclosed is an apparatus and method of processing input and output in a multi-kernel system. A method of processing input and output in a multi-kernel system according to the present disclosure includes: setting a shared memory between a first kernel on a main processor and a lightweight kernel on a parallel processor; setting a data transmission and reception channel between the first kernel on the main processor and the lightweight kernel on the parallel processor using the shared memory; providing, on the basis of the data transmission and reception channel, an input/output task that occurs in the lightweight kernel to the first kernel on the main processor; processing, by the first kernel on the main processor, an operation corresponding to the input/output task; and providing a result of the processing to the lightweight kernel.
    Type: Application
    Filed: October 12, 2018
    Publication date: April 18, 2019
    Inventors: Seung Jun CHA, Jin Mee KIM, Seung Hyub JEON, Sung In JUNG, Yeon Jeong JEONG
  • Publication number: 20170329642
    Abstract: Provided is a many-core system including a resource unit including a resource needed for execution of an operating system and a resource needed for execution of a lightweight kernel, a programing constructing unit configured to convert an input program into an application program and to load the application program into the resource unit, a run-time management unit configured to manage a running environment for executing the application program, and a self-organization management unit configured to monitor the application program and the resources in the resource unit, to dynamically adjust the running environment to prevent a risk factor from occurring during the execution of the application program, and to cure a risk factor which occurred.
    Type: Application
    Filed: August 11, 2016
    Publication date: November 16, 2017
    Inventors: Jin Mee KIM, Kwang Won KOH, Kang Ho KIM, Jeong Hwan LEE, Seung Hyub JEON, Sung In JUNG, Yeon Jeong JEONG, Seung Jun CHA
  • Publication number: 20170269966
    Abstract: Provided is a method of scheduling threads in a many-cores system. The method includes generating a thread map where a connection relationship between a plurality of threads is represented by a frequency of inter-process communication (IPC) between threads, generating a core map where a connection relationship between a plurality of cores is represented by a hop between cores, and respectively allocating the plurality of threads to the plurality of cores defined by the core map, based on a thread allocation policy defining a mapping rule between the thread map and the core map.
    Type: Application
    Filed: March 17, 2017
    Publication date: September 21, 2017
    Inventors: Kang Ho KIM, Kwang Won KOH, Jin Mee KIM, Jeong Hwan LEE, Seung Hyub JEON, Sung In JUNG, Yeon Jeong JEONG, Seung Jun CHA
  • Publication number: 20150248382
    Abstract: An apparatus and method for converting an electronic form. After a table is extracted as an image of information on a cell range instead of text by analyzing the table of the PDF document file requested according to a standard operation of the PDF document file requested to be converted and converting the analyzed table into the standard document based on the prescribed reference information, the standard document including information on cell range corresponding to the table of the converted PDF document is converted into the XML document according to the XML conversion format. In turn, as the XML document is structurized and provided according to the prescribed XML reference information and the XML document file, the PDF document file is accurately converted into the XML document file which is in turn provided, thereby improving the form conversion quality of the document, and also easily storing and managing the document.
    Type: Application
    Filed: November 12, 2013
    Publication date: September 3, 2015
    Applicant: KOREA INSTITUTE OF SCIENCE 7 TECHNOLOGY INFORMATION
    Inventors: Yong Ju Shin, Kiseok Choi, Jaesoo Kim, Hongro Lee, Kyu Chul Lee, Seung Jun Cha, Gyu Jin Chol