Patents by Inventor Young Han Choi

Young Han Choi 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: 20190218642
    Abstract: Disclosed is a thermal reduction apparatus. The thermal reduction apparatus according to the exemplary embodiment includes: a preheating unit which preheats a to-be-reduced material and loads the to-be-reduced material into a reducing unit; the reducing unit which is connected to the preheating unit and in which a thermal reduction reaction of the to-be-reduced material occurs; a cooling unit which is connected to the reducing unit and from which the to-be-reduced material flowing into the cooling unit is unloaded to the outside; a gate device which is installed between the preheating unit and the reducing unit; a gate device which is installed between the reducing unit and the cooling unit; a condensing device which is connected to the reducing unit and condenses a metal vapor; a first blocking unit which is installed in the reducing unit; and a second blocking unit which is installed in the reducing unit so as to be spaced apart from the first blocking unit.
    Type: Application
    Filed: March 28, 2019
    Publication date: July 18, 2019
    Inventors: Dong Kyun CHOO, Young II KIM, Kil Won CHO, Wung Yong CHOO, Jong Min PARK, Jae Sin PARK, Gilsoo HAN, Good-Sun CHOI, Gyu Chang LEE, Dae Kyu PARK, Moon Chui KIM
  • Patent number: 10352499
    Abstract: This application relates to a liquefied natural gas storage apparatus. The apparatus includes a heat insulated tank and liquefied natural gas contained in the tank. The tank has heat insulation sufficient to maintain liquefied natural gas therein such that most of the liquefied natural gas stays in liquid. The contained liquefied natural gas has a vapor pressure from about 0.3 bar to about 2 bar. The apparatus further includes a safety valve configured to release a part of liquefied natural gas contained in the tank when a vapor pressure of liquefied natural gas within the tank becomes higher than a cut-off pressure. The cut-off pressure is from about 0.3 bar to about 2 bar.
    Type: Grant
    Filed: July 26, 2013
    Date of Patent: July 16, 2019
    Assignee: DAEWOO SHIPBUILDING & MARINE ENGINEERING CO., LTD.
    Inventors: Jung Han Lee, Jung Ho Choi, Sung Kon Han, Dong Kyu Choi, Young Sik Moon
  • Publication number: 20190215044
    Abstract: Disclosed are: a communication technique for merging, with the Internet of Things (IoT) technology, a 5th-generation (5G) communication system for supporting a data transmission rate higher than that of a 4th-generation (4G) system; and a system therefor. The disclosure can be applied to intelligent services (for example, smart home, smart building, smart city, smart car or connected car, health care, digital education, retailing, security and safety related services) on the basis of 5G communication technology and IoT related technology.
    Type: Application
    Filed: October 21, 2016
    Publication date: July 11, 2019
    Inventors: Hoon-Dong NOH, Cheol-Kyu SHIN, Dong-Han KIM, Young-Woo KWAK, Youn-Sun KIM, Jin-Young OH, Young-Bum KIM, Seung-Hoon CHOI, Sang-Min RO, Tae-Han BAE, Ju-Ho LEE
  • Publication number: 20190184502
    Abstract: A laser welding apparatus for laser-welding a first welding target and a second welding target seated on the first welding target includes a first jig on which the first welding target is seated, a second jig configured to press the first welding target such that the first welding target is adhered to the first jig, a third jig configured to press the second welding target such that the second welding target is adhered to the first welding target, one or more connection members connecting the second jig and the third jig such that the second welding target is pressed by the second jig when the first welding target is pressed by the first jig, and a laser head configured to laser-weld the first welding target and the second welding target by irradiating a laser beam to a specific welding part of the second welding target.
    Type: Application
    Filed: July 18, 2018
    Publication date: June 20, 2019
    Inventors: Duck Whan Kim, Kwi Seong Jeong, Jung Han Yu, Young Bum Kum, Young Je Lee, Tae Min Lee, Yong Woo Choi, Chang Jun Lee
  • Patent number: 10321426
    Abstract: An apparatus and method for detecting synchronization and signals using block data processing in a receiving system are provided. To process an input signal, a cumulative matrix is obtained from an input vector signal for each frame generated from the signal. A primary eigenvector is extracted from the cumulative matrix, and the maximum value of a correlation vector is calculated from the extracted primary eigenvector. A time delay is detected by comparing the calculated maximum value of the correlation vector with a first threshold value, and a delay correlation vector is calculated from the detected time delay. Finally, synchronization and signals are detected by comparing the calculated delay correlation vector with a second threshold value.
    Type: Grant
    Filed: October 18, 2010
    Date of Patent: June 11, 2019
    Assignees: Samsung Electronics Co., Ltd., Electronics and Telecommunications Research Institute
    Inventors: Chang Wahn Yu, Youn Ok Park, Chong Hyun Lee, Jun-Woo Kim, Seungjae Bahng, Byung-Han Ryu, Jung Pil Choi, Young Jo Bang
  • Publication number: 20190168733
    Abstract: A method for controlling revolutions per minute (RPM) flare, in which an RPM of a transmission increases due to clutch slip, for a hybrid vehicle can include: determining whether gear-shifting is performed in a transmission of the hybrid vehicle; detecting whether RPM flare of the transmission occurs when it is determined that the gear-shifting is performed; and controlling a torque of a motor of the hybrid vehicle so as to reduce the RPM flare of the transmission by reducing the torque of the motor when the RPM flare of the transmission is detected.
    Type: Application
    Filed: July 18, 2018
    Publication date: June 6, 2019
    Inventors: Won Woo Seo, Young Kwan Ko, Hoon Han, Jae Young Choi
  • Patent number: 10297856
    Abstract: The present disclosure is to provide a negative electrode for a lithium secondary battery having high negative electrode efficiency and excellent capacity retention, and a lithium secondary battery including the negative electrode. In one aspect, there is provided a negative electrode for a lithium secondary battery, wherein the electrode contains 3 to 9% by weight of a silicon-based negative-electrode active material having a following composition formula (1); and 87.5 to 95.5% by weight of a graphite-based negative-electrode active material: SixTiyFezAlu??(1) where x, y, z and u are atomic %, x: 1?(y+z+u), y: 0.09 to 0.14, z: 0.09 to 0.14, u: 0.01 exclusive to 0.2 exclusive.
    Type: Grant
    Filed: February 26, 2016
    Date of Patent: May 21, 2019
    Assignee: ILJIN ELECTRIC CO., LTD.
    Inventors: Young Pil Choi, Cheol Ho Park, Min Hyun Kim, Myeong Han Kim, Seon Kyong Kim
  • Patent number: 10287651
    Abstract: Disclosed is a thermal reduction apparatus. The thermal reduction apparatus according to the exemplary embodiment includes: a preheating unit which preheats a to-be-reduced material and loads the to-be-reduced material into a reducing unit; the reducing unit which is connected to the preheating unit and in which a thermal reduction reaction of the to-be-reduced material occurs; a cooling unit which is connected to the reducing unit and from which the to-be-reduced material flowing into the cooling unit is unloaded to the outside; a gate device which is installed between the preheating unit and the reducing unit; a gate device which is installed between the reducing unit and the cooling unit; a condensing device which is connected to the reducing unit and condenses a metal vapor; a first blocking unit which is installed in the reducing unit; and a second blocking unit which is installed in the reducing unit so as to be spaced apart from the first blocking unit.
    Type: Grant
    Filed: July 8, 2015
    Date of Patent: May 14, 2019
    Assignee: RESEARCH INSTITUTE OF INDUSTRIAL SCIENCE & TECHNOLOGY
    Inventors: Dong Kyun Choo, Young Il Kim, Kil Won Cho, Wung Yong Choo, Jong Min Park, Jae Sin Park, Gilsoo Han, Good-Sun Choi, Gyu Chang Lee, Dae Kyu Park, Moon Chul Kim
  • Patent number: 9444828
    Abstract: A network intrusion detection apparatus and method that perform Perl Compatible Regular Expressions (PCRE)-based pattern matching on the payloads of packets using a network processor equipped with a Deterministic Finite Automata (DFA) engine. The network intrusion detection apparatus includes a network processor core for receiving packets from a network, and transmitting payloads of the received packets to a Deterministic Finite Automata (DFA) engine. A detection rule converter converts a PCRE-based detection rule, preset to detect an attack packet, into a detection rule including a pattern to which only PCRE grammar corresponding to the DFA engine is applied. The DFA engine performs PCRE pattern matching on the payloads of the packets based on the detection rule converted by the detection rule converter.
    Type: Grant
    Filed: September 11, 2013
    Date of Patent: September 13, 2016
    Assignee: ELECTRONICS AND TELECOMMUNICATIONS RESERACH INSTITUTE
    Inventors: Sung-Ryoul Lee, Young-Han Choi, Jung-Hee Lee, Byung-Chul Bae, Hyung-Geun Oh, Ki-Wook Sohn
  • Patent number: 9342366
    Abstract: An intrusion detection apparatus and method using a load balancer responsive to traffic conditions between a central processing unit (CPU) and a graphics processing unit (GPU) are provided. The intrusion detection apparatus includes a packet acquisition unit, a character string check task allocation unit, a CPU character string check unit, and a GPU character string check unit. The packet acquisition unit receives packets, and stores the packets in a single task queue. The character string check task allocation unit determines the number of packets in the packet acquisition unit, and allocates character string check tasks to the CPU or the GPU. The CPU character string check unit compares the character strings of the packets with a character string defined in at least one detection rule inside the CPU. The GPU character string check unit compares the character strings of the packets with the character string inside the GPU.
    Type: Grant
    Filed: October 15, 2013
    Date of Patent: May 17, 2016
    Assignee: ELECTRONICS AND TELECOMMUNICATIONS RESEARCH INSTITUTE
    Inventors: Junghee Lee, Sungryoul Lee, Deokjin Kim, Young Han Choi, Byungchul Bae, HyungGeun Oh, Kiwook Sohn, KyoungSoo Park, Yung Yi, Jihyung Lee, Sangwoo Moon
  • Patent number: 9335353
    Abstract: A system and method of measuring power consumption in an appliance is provided. An electrical characteristic of a power signal, such as a voltage component and/or a current component, can be detected at the appliance. The detected electrical characteristic can be processed using a signal processor. During signal processing, the detected electrical characteristic can be shifted based on a predetermined threshold and converted to a digital signal. An electrical characteristic offset can be determined based on an average electrical characteristic value of a plurality of detected electrical characteristics. The difference between the electrical characteristic offset value and an instantaneously detected electrical characteristic value can be used to determine power consumption of the appliance.
    Type: Grant
    Filed: February 21, 2013
    Date of Patent: May 10, 2016
    Assignee: General Electric Company
    Inventors: Sung Dong Yang, Dong Soo Shin, Dong Hun Lee, Young Han Choi, Jae Seok Noh, Eun Yeong An
  • Patent number: 9032516
    Abstract: Provided are a system and method for detecting a malicious script. The system includes a script decomposition module for decomposing a web page into scripts, a static analysis module for statically analyzing the decomposed scripts in the form of a document file, a dynamic analysis module for dynamically executing and analyzing the decomposed scripts, and a comparison module for comparing an analysis result of the static analysis module and an analysis result of the dynamic analysis module to determine whether the decomposed scripts are malicious scripts. The system and method can recognize a hidden dangerous hypertext markup language (HTML) tag irrespective of an obfuscation technique for hiding a malicious script in a web page and thus can cope with an unknown obfuscation technique.
    Type: Grant
    Filed: November 11, 2010
    Date of Patent: May 12, 2015
    Assignee: Electronics and Telecommunications Research Institute
    Inventors: Tae Ghyoon Kim, Young Han Choi, Seok Jin Choi, Cheol Won Lee
  • Publication number: 20150089655
    Abstract: A system and method for detecting malware based on a virtual host are provided. The system for detecting malware based on a virtual host includes a terminal network behavior analysis server and a virtual host. The terminal network behavior analysis server extracts network behavior information by monitoring the network behavior of an actual host, and outputs the extracted the network behavior information. The virtual host detects malware corresponding to abnormal behavior in the actual host, by receiving the network behavior information and then performing corresponding behavior.
    Type: Application
    Filed: September 22, 2014
    Publication date: March 26, 2015
    Inventors: Young Han CHOI, Haksoo KIM, Deokjin KIM, JungMin KANG, HyungGeun OH, Kiwook SOHN
  • Patent number: 8868362
    Abstract: An apparatus and method for monitoring power consumption of an appliance includes a processor in communication with a memory, the memory including program instructions for execution by the processor to determine a first stable power consumption state of the appliance, record a power consumption of the appliance during the first stable power consumption state, determine an unstable power consumption state of the appliance, suspend recording of the power consumption of the appliance during the unstable state, determine a second stable power consumption state of the appliance, resume recording of the power consumption of the appliance when the appliance is in the second stable power consumption state, and estimate a value of a power consumed during the unstable power consumption state as a factor of the recorded power consumption of the appliance during the first stable power consumption state and the second stable power consumption power state.
    Type: Grant
    Filed: January 6, 2012
    Date of Patent: October 21, 2014
    Assignee: General Electric Company
    Inventors: Dong Hun Lee, Dong Soo Shin, Sung Dong Yang, Young Han Choi, Jae Seok Noh
  • Publication number: 20140236505
    Abstract: A system and method of measuring power consumption in an appliance is provided. An electrical characteristic of a power signal, such as a voltage component and/or a current component, can be detected at the appliance. The detected electrical characteristic can be processed using a signal processor. During signal processing, the detected electrical characteristic can be shifted based on a predetermined threshold and converted to a digital signal. An electrical characteristic offset can be determined based on an average electrical characteristic value of a plurality of detected electrical characteristics. The difference between the electrical characteristic offset value and an instantaneously detected electrical characteristic value can be used to determine power consumption of the appliance.
    Type: Application
    Filed: February 21, 2013
    Publication date: August 21, 2014
    Inventors: Sung Dong Yang, Dong Soo Shin, Dong Hun Lee, Young Han Choi, Jae Seok Noh, Eun Yeong An
  • Patent number: 8732833
    Abstract: A system and method for detecting network intrusion by using a network processor are provided. The intrusion detection system includes: a first intrusion detector, configured to use a first network processor to perform intrusion detection on layer 3 and layer 4 of a protocol field among information included in a packet header of a packet transmitted to the intrusion detection system, and when no intrusion is detected, classify the packets according to stream and transmit the classified packets to a second intrusion detector; and a second intrusion detector, configured to use a second network processor to perform intrusion detection through deep packet inspection (DPI) for the packet payload of the packets transmitted from the first intrusion detector. Thereby, intrusion detection for high-speed packets can be performed in a network environment.
    Type: Grant
    Filed: April 22, 2012
    Date of Patent: May 20, 2014
    Assignee: Electronics and Telecommunications Research Institute
    Inventors: Young-Han Choi, Deok-Jin Kim, Sung-Ryoul Lee, Man-Hee Lee, Byung-Chul Bae, Sang-Woo Park, E-Joong Yoon
  • Publication number: 20140123288
    Abstract: A network intrusion detection apparatus and method that perform Perl Compatible Regular Expressions (PCRE)-based pattern matching on the payloads of packets using a network processor equipped with a Deterministic Finite Automata (DFA) engine. The network intrusion detection apparatus includes a network processor core for receiving packets from a network, and transmitting payloads of the received packets to a Deterministic Finite Automata (DFA) engine. A detection rule converter converts a PCRE-based detection rule, preset to detect an attack packet, into a detection rule including a pattern to which only PCRE grammar corresponding to the DFA engine is applied. The DFA engine performs PCRE pattern matching on the payloads of the packets based on the detection rule converted by the detection rule converter.
    Type: Application
    Filed: September 11, 2013
    Publication date: May 1, 2014
    Applicant: ELECTRONICS AND TELECOMMUNICATIONS RESEARCH INSTITUTE
    Inventors: Sung-Ryoul LEE, Young-Han CHOI, Jung-Hee LEE, Byung-Chul BAE, Hyung-Geun OH, Ki-Wook SOHN
  • Publication number: 20140109105
    Abstract: An intrusion detection apparatus and method using a load balancer responsive to traffic conditions between a central processing unit (CPU) and a graphics processing unit (GPU) are provided. The intrusion detection apparatus includes a packet acquisition unit, a character string check task allocation unit, a CPU character string check unit, and a GPU character string check unit. The packet acquisition unit receives packets, and stores the packets in a single task queue. The character string check task allocation unit determines the number of packets in the packet acquisition unit, and allocates character string check tasks to the CPU or the GPU. The CPU character string check unit compares the character strings of the packets with a character string defined in at least one detection rule inside the CPU. The GPU character string check unit compares the character strings of the packets with the character string inside the GPU.
    Type: Application
    Filed: October 15, 2013
    Publication date: April 17, 2014
    Applicant: ELECTRONICS AND TELECOMMUNICATIONS RESEARCH INSTITUTE
    Inventors: Junghee LEE, Sungryoul LEE, Deokjin KIM, Young Han CHOI, Byungchul BAE, HyungGeun OH, Kiwook SOHN, KyoungSoo PARK, Yung YI, Jihyung LEE, Sangwoo MOON
  • Publication number: 20130179101
    Abstract: An apparatus and method for monitoring power consumption of an appliance includes a processor in communication with a memory, the memory including program instructions for execution by the processor to determine a first stable power consumption state of the appliance, record a power consumption of the appliance during the first stable power consumption state, determine an unstable power consumption state of the appliance, suspend recording of the power consumption of the appliance during the unstable state, determine a second stable power consumption state of the appliance, resume recording of the power consumption of the appliance when the appliance is in the second stable power consumption state, and estimate a value of a power consumed during the unstable power consumption state as a factor of the recorded power consumption of the appliance during the first stable power consumption state and the second stable power consumption power state.
    Type: Application
    Filed: January 6, 2012
    Publication date: July 11, 2013
    Inventors: Dong Hun Lee, Dong Soo Shin, Sung Dong Yang, Young Han Choi, Jae Seok Noh
  • Publication number: 20130160122
    Abstract: A system and method for detecting network intrusion by using a network processor are provided. The intrusion detection system includes: a first intrusion detector, configured to use a first network processor to perform intrusion detection on layer 3 and layer 4 of a protocol field among information included in a packet header of a packet transmitted to the intrusion detection system, and when no intrusion is detected, classify the packets according to stream and transmit the classified packets to a second intrusion detector; and a second intrusion detector, configured to use a second network processor to perform intrusion detection through deep packet inspection (DPI) for the packet payload of the packets transmitted from the first intrusion detector. Thereby, intrusion detection for high-speed packets can be performed in a network environment.
    Type: Application
    Filed: April 22, 2012
    Publication date: June 20, 2013
    Applicant: ELECTRONICS AND TELECOMMUNICATIONS RESEARCH INSTITUTE
    Inventors: Young-Han CHOI, Deok-Jin KIM, Sung-Ryoul LEE, Man-Hee LEE, Byung-Chul BAE, Sang-Woo PARK, E-Joong YOON