Patents by Inventor Hyun Uk HWANG
Hyun Uk HWANG 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).
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Patent number: 11961822Abstract: A display device includes a substrate including a plurality of emission areas respectively corresponding to a plurality of subpixels for displaying an image, a plurality of light emitting elements respectively located in the plurality of emission areas of a first surface of the substrate and respectively corresponding to the plurality of subpixels, a first planarization layer on the first surface of the substrate and covering the plurality of light emitting elements, and an array layer on the first planarization layer.Type: GrantFiled: December 7, 2022Date of Patent: April 16, 2024Assignee: Samsung Display Co., Ltd.Inventors: Hyun Joon Kim, Jung Hwan Hwang, Kye Uk Lee, Sang Jin Jeon
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Publication number: 20240112626Abstract: A display device includes a scan write line, a PWM emission line, a PAM emission line, a sweep signal line, a first data line, a second data line, and a subpixel connected thereto, and including a light emitting element, a first pixel driver to supply a control current to a node according to the first data voltage in response to the PWM emission signal, a second pixel driver to generate a driving current according to the second data voltage in response to the PWM emission signal, and a third pixel driver to supply the driving current to the light emitting element according to the PAM emission signal and a voltage of the node, wherein the PWM emission signal includes a plurality of PWM pulses, the PAM emission signal includes a plurality of PAM pulses, and a number of the PWM pulses is greater than a number of the PAM pulses.Type: ApplicationFiled: December 4, 2023Publication date: April 4, 2024Inventors: Jung Hwan HWANG, Hyun Joon KIM, Kye Uk LEE, Sang Jin JEON, Jun Ki JEONG
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Publication number: 20240071299Abstract: A display device includes connection lines, pulse amplitude modulation (PAM) data lines configured to receive pulse width modulation (PWM) data voltages, PWM data lines configured to receive the PWM data voltages, a first connection control line configured to receive a first connection control signal, a second connection control line configured to receive a second connection control signal, subpixels connected to the PWM data lines and the PAM data lines, and a first demultiplexer (demux) unit configured to connect the connection lines to the PAM data lines or to the PWM data lines according to the first connection control signal and the second connection control signal.Type: ApplicationFiled: October 30, 2023Publication date: February 29, 2024Inventors: Jung Hwan HWANG, Hyun Joon KIM, Kye Uk LEE, Jun Ki JEONG, Sang Jin JEON
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Publication number: 20240020039Abstract: Disclosed herein are an evidence collection guidance method and apparatus for file selection. The evidence collection guidance method includes generating pieces of preliminary analysis information that are pieces of collection target information, setting levels of the pieces of preliminary analysis information based on predefined rules, and generating and outputting notification information including summary description information and follow-up measure items related to the pieces of preliminary analysis information corresponding to the levels.Type: ApplicationFiled: July 13, 2022Publication date: January 18, 2024Inventors: Jung-Hoon OH, Hyun-Uk HWANG, Seung-Yong LEE, Jun-Su KIM, Joong-Soo HAN, Hye-Jin JEONG
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Publication number: 20230024682Abstract: Disclosed herein are a logical imaging apparatus and method for digital forensic triage. The logical imaging method for digital forensic triage includes receiving files selected as a digital evidence target, creating a logical imaging file, inside of which is formatted in a predetermined file system structure, recording the selected files in accordance with the file system structure of the created logical imaging file, and storing selected file list information about a list of the recorded selected files, and creating a separate selected list information file and a separate logical imaging summary file outside the logical imaging file.Type: ApplicationFiled: July 20, 2022Publication date: January 26, 2023Inventors: Hyun-Uk HWANG, Seung-Yong LEE, Joong-Soo HAN, Jung-Hoon OH, Jun-Su KIM, Ki-Bom KIM, Won-Ho KIM
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Patent number: 9613207Abstract: Provided is a technology which creates an autorun file that is used in autorun for preventing the autorun of a USB-based portable storage, thereby allowing an arbitrary user or worm virus not to manipulate the autorun file. A method for preventing autorun of portable storage accesses at least one of a master file table entry of a root directory and a master file table entry of an autorun file, and sets non-autorun in the at least one accessed master file table entry.Type: GrantFiled: August 3, 2010Date of Patent: April 4, 2017Assignee: ELECTRONICS AND TELECOMMUNICATIONS RESEARCH INSTITUTEInventors: Hyun Uk Hwang, Ki Bom Kim, Gi Han Kim, Sung Il Lee, Tae Joo Chang, Cheol Won Lee
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Patent number: 9286165Abstract: In a method for recovering a partition using backup boot record information, an unallocated area is separated from a disk or an evidence image. The unallocated area is searched for a location of a backup boot record. Whether is backup boot record of a file system to be detected is present in found sectors is analyzed. If the backup boot record is found to be the backup boot record of the file system desired to be detected as a result of the analysis, it is verified whether the backup boot record is a boot record of a valid partition. If it is verified that the backup boot record is the boot record of the valid partition, a file system of a deleted partition is parsed using the backup boot record and a deleted directory or file is recovered.Type: GrantFiled: August 3, 2013Date of Patent: March 15, 2016Assignee: ELECTRONICS AND TELECOMMUNICATIONS RESEARCH INSTITUTEInventors: Hyun-Uk Hwang, Ki-Bom Kim, Seung-Yong Lee, Young-Chan Shin, Tae-Joo Chang
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Patent number: 9164845Abstract: Provided is a technology which searches an unallocated area to quickly extract information on a deleted partition when checking a disk and an evidence image in digital forensic, and adds a recovered partition to a forensic tool as a new partition. For this, the technology has direct access to the sector of a disk or an evidence image which is obtained, limits information search on an unallocated area only to an area satisfying the minimum size in which a partition may be created, changes an LBA-based sector access scheme into a CHS-based sector access scheme, and reads only the sector of a location having the possibility that a boot record exists to search information of a deleted partition, recovering a partition at high speed.Type: GrantFiled: November 27, 2009Date of Patent: October 20, 2015Assignee: ELECTRONICS AND TELECOMMUNICATIONS RESEARCH INSTITUTEInventors: Hyun Uk Hwang, Ki Bom Kim, Tae Joo Chang, Cheol Won Lee
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Patent number: 8745100Abstract: Method and apparatus for collecting evidence are provided. An exemplary embodiment enhances accuracy and efficiency of collecting evidence by analyzing link information in the target computer and collecting collection target file. And the exemplary embodiment can collect evidence from a target computer as well as from a remote computer through analyzing the link information in the target computer, identifying the path of collection target file and extracting the target file.Type: GrantFiled: November 27, 2009Date of Patent: June 3, 2014Assignee: Electronics and Telecommunications Research InstituteInventors: Ki Bom Kim, Hyun Uk Hwang, Young Chan Shin, Tae Joo Chang, Cheol Won Lee, Sung Jai Baik
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Publication number: 20140059313Abstract: In a method for recovering a partition using backup boot record information, an unallocated area is separated from a disk or an evidence image. The unallocated area is searched for a location of a backup boot record. Whether is backup boot record of a file system to be detected is present in found sectors is analyzed. If the backup boot record is found to be the backup boot record of the file system desired to be detected as a result of the analysis, it is verified whether the backup boot record is a boot record of a valid partition. If it is verified that the backup boot record is the boot record of the valid partition, a file system of a deleted partition is parsed using the backup boot record and a deleted directory or file is recovered.Type: ApplicationFiled: August 3, 2013Publication date: February 27, 2014Applicant: ELECTRONICS AND TELECOMMUNICATIONS RESEARCH INSTITUTEInventors: Hyun-Uk HWANG, Ki-Bom KIM, Seung-Yong LEE, Young-Chan SHIN, Tae-Joo CHANG
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Publication number: 20110099639Abstract: Provided is a technology which creates an autorun file that is used in autorun for preventing the autorun of a USB-based portable storage, thereby allowing an arbitrary user or worm virus not to manipulate the autorun file. A method for preventing autorun of portable storage accesses at least one of a master file table entry of a root directory and a master file table entry of an autorun file, and sets non-autorun in the at least one accessed master file table entry.Type: ApplicationFiled: August 3, 2010Publication date: April 28, 2011Applicant: Electronics and Telecommunications Research InstituteInventors: Hyun Uk HWANG, Ki Bom KIM, Gi Han KIM, Sung Il LEE, Tae Joo CHANG, Cheol Won LEE
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Publication number: 20110055163Abstract: Provided is a technology which searches an unallocated area to quickly extract information on a deleted partition when checking a disk and an evidence image in digital forensic, and adds a recovered partition to a forensic tool as a new partition. For this, the technology has direct access to the sector of a disk or an evidence image which is obtained, limits information search on an unallocated area only to an area satisfying the minimum size in which a partition may be created, changes an LBA-based sector access scheme into a CHS-based sector access scheme, and reads only the sector of a location having the possibility that a boot record exists to search information of a deleted partition, recovering a partition at high speed.Type: ApplicationFiled: November 27, 2009Publication date: March 3, 2011Applicant: ELECTRONICS AND TELECOMMUNICATIONS RESEARCH INSTITUTEInventors: Hyun Uk HWANG, Ki Bom KIM, Tae Joo CHANG, Cheol Won LEE
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Publication number: 20110047130Abstract: Method and apparatus for collecting evidence are provided. An exemplary embodiment enhances accuracy and efficiency of collecting evidence by analyzing link information in the target computer and collecting collection target file. And the exemplary embodiment can collect evidence from a target computer as well as from a remote computer through analyzing the link information in the target computer, identifying the path of collection target file and extracting the target file.Type: ApplicationFiled: November 27, 2009Publication date: February 24, 2011Applicant: ELECTRONICS AND TELECOMMUNICATIONS RESEARCH INSTITUTEInventors: Ki Bom KIM, Hyun Uk HWANG, Young Chan SHIN, Tae Joo CHANG, Cheol Won LEE, Sung Jai BAIK