Patents by Inventor In Hwan Choi

In Hwan 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: 20240228441
    Abstract: The present invention relates to a novel method for preparing a compound of represented by Formula 4 set forth in the present specification, wherein the compound can be effectively used for the synthesis of a sphingosine-1-phosphate receptor agonist.
    Type: Application
    Filed: April 14, 2022
    Publication date: July 11, 2024
    Applicant: LG CHEM, LTD.
    Inventors: Sung Wook KIM, Ki Dae KIM, Soo Min LEE, In Hwan CHOI
  • Patent number: 11652572
    Abstract: Methods and apparatus for transmitting and receiving broadcast signals are provided. The method for transmitting a broadcast signal includes encoding mobile data for forward error correction (FEC), encoding signaling data, forming data groups including the encoded mobile data and the encoded signaling data and transmitting a signal frame that includes the data groups.
    Type: Grant
    Filed: August 23, 2021
    Date of Patent: May 16, 2023
    Assignee: LG ELECTRONICS INC.
    Inventors: Jae Hyung Song, Byoung Gill Kim, Jin Woo Kim, Won Gyu Song, Hyoung Gon Lee, In Hwan Choi, Chui Kyu Mun
  • Patent number: 11645199
    Abstract: A memory controller is for controlling operations of a nonvolatile memory including a first memory block group for storing a first type of data and a second memory block group for storing a second type of data. The memory controller includes a garbage collection management unit configured to execute a garbage collection policy in which a first garbage collection criteria is applied to the first memory block group, and a second garbage collection criteria is applied to the second memory block group, where first garbage collection criteria is different than the second garbage collection criteria.
    Type: Grant
    Filed: June 17, 2020
    Date of Patent: May 9, 2023
    Assignee: Samsung Electronics Co., Ltd.
    Inventor: In-Hwan Choi
  • Patent number: 11472063
    Abstract: The present invention relates to a wire saw excavation apparatus that is installed on a plurality of entry holes, where the plurality of entry holes are drilled according to a cutting section of a target surface of rock to be excavated so that the target surface is excavated by using wire saws. The wire saw excavation apparatus mounts N number of pulleys on one entry arm to cut the rock in N number of directions all at once.
    Type: Grant
    Filed: July 20, 2021
    Date of Patent: October 18, 2022
    Inventor: In Hwan Choi
  • Publication number: 20210385009
    Abstract: Methods and apparatus for transmitting and receiving broadcast signals are provided. The method for transmitting a broadcast signal includes encoding mobile data for forward error correction (FEC), encoding signaling data, forming data groups including the encoded mobile data and the encoded signaling data and transmitting a signal frame that includes the data groups.
    Type: Application
    Filed: August 23, 2021
    Publication date: December 9, 2021
    Applicant: LG ELECTRONICS INC.
    Inventors: Jae Hyung SONG, Byoung Gill KIM, Jin Woo KIM, Won Gyu SONG, Hyoung Gon LEE, In Hwan CHOI, Chul Kyu MUN
  • Publication number: 20210348510
    Abstract: The present invention relates to a wire saw excavation apparatus that is installed on a plurality of entry holes drilled according to a cutting section of a target surface of rock to be excavated so that the target surface is excavated by using wire saws, and more particularly, to a wire saw excavation apparatus that mounts N pulleys on one entry arm to cut the rock in N directions all at once, thereby remarkably improving the work efficiency.
    Type: Application
    Filed: July 20, 2021
    Publication date: November 11, 2021
    Inventor: In Hwan CHOI
  • Patent number: 11101924
    Abstract: Methods and apparatus for transmitting and receiving broadcast signals are provided. The method for transmitting a broadcast signal includes encoding mobile data for forward error correction (FEC), encoding signaling data, forming data groups including the encoded mobile data and the encoded signaling data and transmitting a signal frame that includes the data groups.
    Type: Grant
    Filed: July 29, 2019
    Date of Patent: August 24, 2021
    Assignee: LG ELECTRONICS INC.
    Inventors: Jae Hyung Song, Byoung Gill Kim, Jin Woo Kim, Won Gyu Song, Hyoung Gon Lee, In Hwan Choi, Chul Kyu Mun
  • Patent number: 11012097
    Abstract: A method of transmitting a broadcast signal includes encoding mobile data for FEC (Forward Error Correction); encoding signaling information for signaling the mobile data; allocating the encoded mobile data and signaling data into a transmission frame; and transmitting the broadcast signal including the transmission frame, wherein the transmission frame includes a service signaling table having service type information identifying a type of a service of the mobile data and hidden information indicating whether the service of the mobile data is hidden or not.
    Type: Grant
    Filed: August 6, 2019
    Date of Patent: May 18, 2021
    Assignee: LG ELECTRONICS INC.
    Inventors: Chul Soo Lee, In Hwan Choi, Ho Taek Hong, Kook Yeon Kwak, Hyoung Gon Lee, Jae Hyung Song, Jin Pil Kim, Won Gyu Song, Joon Hui Lee, Jin Woo Kim, Byoung Gill Kim, Jong Yeul Suh, Kyu Tae Ahn
  • Patent number: 10959116
    Abstract: The present invention relates to a digital broadcasting system for transmitting/receiving a digital broadcasting signal and a method of processing data. In one aspect of the present invention provides a method of processing data, the method including receiving a broadcasting signal in which mobile service data and main service data are multiplexed, demodulating the received broadcasting signal, obtaining an identifier indicating that data frame of the broadcasting signal includes service guide information, decoding and storing the service guide information from the data frame; and outputting a service included in the mobile service data according to the decoded service guide information.
    Type: Grant
    Filed: July 23, 2019
    Date of Patent: March 23, 2021
    Assignee: LG ELECTRONICS INC.
    Inventors: Jae Hyung Song, In Hwan Choi, Ho Taek Hong, Kook Yeon Kwak, Byoung Gill Kim, Jong Yeul Suh, Jin Pil Kim, Won Gyu Song, Chul Soo Lee, Jin Woo Kim, Hyoung Gon Lee, Joon Hui Lee
  • Publication number: 20200320001
    Abstract: A memory controller is for controlling operations of a nonvolatile memory including a first memory block group for storing a first type of data and a second memory block group for storing a second type of data.
    Type: Application
    Filed: June 17, 2020
    Publication date: October 8, 2020
    Inventor: IN-HWAN CHOI
  • Patent number: 10790856
    Abstract: A method of transmitting a broadcast signal includes encoding mobile data for FEC (Forward Error Correction); encoding signaling information for signaling the mobile data; allocating the encoded mobile data and signaling data into a transmission frame; and transmitting the broadcast signal including the transmission frame, wherein the transmission frame includes a service signaling table having service_type information identifying a type of a service of the mobile data and hidden information indicating whether the service of the mobile data is hidden or not.
    Type: Grant
    Filed: January 4, 2019
    Date of Patent: September 29, 2020
    Assignee: LG ELECTRONICS INC.
    Inventors: Chul Soo Lee, In Hwan Choi, Ho Taek Hong, Kook Yeon Kwak, Hyoung Gon Lee, Jae Hyung Song, Jin Pil Kim, Won Gyu Song, Joon Hui Lee, Jin Woo Kim, Byoung Gill Kim, Jong Yeul Suh, Kyu Tae Ahn
  • Patent number: 10784898
    Abstract: A digital broadcasting system which is robust against an error when mobile service data is transmitted and a method of processing data are disclosed. The mobile service data is subjected to an additional coding process and the coded mobile service data is transmitted. Accordingly, it is possible to cope with a serious channel variation while applying robustness to the mobile service data.
    Type: Grant
    Filed: August 21, 2018
    Date of Patent: September 22, 2020
    Assignee: LG ELECTRONICS INC.
    Inventors: Hyen O Oh, In Hwan Choi, Kook Yeon Kwak, Byoung Gill Kim, Won Gyu Song, Jin Woo Kim, Hyoung Gon Lee
  • Patent number: 10739296
    Abstract: Disclosed is a biological analyte monitoring device including a strip inserter in which a test strip is to be inserted, and a processor configured to read a code sequence based on an element detected from an index region, a first code region, and a second code region of the test strip in response to the test strip being inserted in the strip inserter, wherein the processor is further configured to determine a target interval in which an index element formed in the index region is detected while the test strip is being inserted in the strip inserter, detect a first code element formed in the first code region in the target interval and detect a second code element formed in the second code region in the target interval, and identify the code sequence based on a result of detecting the first code element and the second code element.
    Type: Grant
    Filed: May 11, 2018
    Date of Patent: August 11, 2020
    Assignee: PHILOSYS CO., LTD.
    Inventor: In Hwan Choi
  • Patent number: 10719438
    Abstract: A memory controller is for controlling operations of a nonvolatile memory including a first memory block group for storing a first type of data and a second memory block group for storing a second type of data. The memory controller includes a garbage collection management unit configured to execute a garbage collection policy in which a first garbage collection criteria is applied to the first memory block group, and a second garbage collection criteria is applied to the second memory block group, where first garbage collection criteria is different than the second garbage collection criteria.
    Type: Grant
    Filed: June 28, 2016
    Date of Patent: July 21, 2020
    Assignee: Samsung Electronics Co., Ltd.
    Inventor: In-Hwan Choi
  • Patent number: 10686617
    Abstract: A digital broadcasting system and method of processing data are disclosed. Herein, a method of processing data in a transmitting system includes creating a data group including a plurality of mobile service data packets, re-adjusting a relative position of at least one main service data packet of a main service data section, the main service data section including a plurality of main service data packets, and multiplexing the mobile service data of the data group and the main service data of the main service data section in burst units. Herein, a position of an audio data packet among the main service data packets of the main service data section may be re-adjusted. Also, a position of an audio data packet included in the main service data section may be re-adjusted based upon a multiplexing position of the main service data section.
    Type: Grant
    Filed: December 26, 2017
    Date of Patent: June 16, 2020
    Assignee: LG ELECTRONICS INC.
    Inventors: In Hwan Choi, Kook Yeon Kwak, Byoung Gill Kim, Jin Woo Kim, Hyoung Gon Lee, Jong Moon Kim, Won Gyu Song
  • Patent number: RE47958
    Abstract: A digital broadcasting system and a data processing method are disclosed. A time zone identifier is inserted into program table information of a broadcasting signal and the broadcasting signal is transmitted/received. The digital broadcasting system can calculate a local time of a region, in which the digital broadcasting system is located, using the time zone identifier. Accordingly, although the position of the digital broadcasting system is changed, it is possible to process the broadcasting signal related to the local time without an error.
    Type: Grant
    Filed: December 6, 2017
    Date of Patent: April 21, 2020
    Assignee: LG ELECTRONICS INC.
    Inventors: Jae Hyung Song, In Hwan Choi, Kook Yeon Kwak, Byoung Gill Kim, Won Gyu Song, Jin Pil Kim, Jin Woo Kim, Hyoung Gon Lee, Jong Moon Kim
  • Patent number: RE48276
    Abstract: A broadcast receiving system capable of receiving mobile broadcast data and a method for processing broadcast signals are disclosed. The broadcast receiving system includes N number of antenna elements, a demodulator, a transmission parameter detector, and a block decoder. The N number of antenna elements receives each of the broadcast signals. The demodulator demodulates the broadcast signal having greater signal strength among each of the received broadcast signals. The transmission parameter detector detects the transmission parameter. The block decoder symbol-decodes the mobile broadcast service data included in the received broadcast signal in block units, based upon the detected transmission parameter.
    Type: Grant
    Filed: December 6, 2017
    Date of Patent: October 20, 2020
    Assignee: LG ELECTRONICS INC.
    Inventors: Il Soo Cho, Hyeon Cheol Cho, Jong Sun Park, In Hwan Choi, Hyoung Gon Lee, Won Gyu Song, Seung Man Kim, Jong Moon Kim, Jin Woo Kim, Kook Yeon Kwak, Byoung Gill Kim
  • Patent number: RE48627
    Abstract: A digital broadcast transmitting/receiving system and a method for processing data are disclosed. The method for processing data may enhance the receiving performance of the receiving system by performing additional coding and multiplexing processes on the traffic information data and transmitting the processed data. Thus, robustness is provided to the traffic information data, thereby enabling the data to respond strongly against the channel environment which is always under constant and vast change.
    Type: Grant
    Filed: January 29, 2019
    Date of Patent: July 6, 2021
    Assignee: LG ELECTRONICS INC.
    Inventors: Jin Pil Kim, Young In Kim, Ho Taek Hong, In Hwan Choi, Kook Yeon Kwak, Hyoung Gon Lee, Byoung Gill Kim, Jin Woo Kim, Won Gyu Song, Jong Moon Kim
  • Patent number: RE48776
    Abstract: A digital broadcasting system and a data processing method are disclosed. A time zone identifier is inserted into program table information of a broadcasting signal and the broadcasting signal is transmitted/received. The digital broadcasting system can calculate a local time of a region, in which the digital broadcasting system is located, using the time zone identifier. Accordingly, although the position of the digital broadcasting system is changed, it is possible to process the broadcasting signal related to the local time without an error.
    Type: Grant
    Filed: April 17, 2020
    Date of Patent: October 12, 2021
    Assignee: LG ELECTRONICS INC.
    Inventors: Jae Hyung Song, In Hwan Choi, Kook Yeon Kwak, Byoung Gill Kim, Won Gyu Song, Jin Pil Kim, Jin Woo Kim, Hyoung Gon Lee, Jong Moon Kim
  • Patent number: RE49757
    Abstract: A digital broadcast transmitting/receiving system and a method for processing data are disclosed. The method for processing data may enhance the receiving performance of the receiving system by performing additional coding and multiplexing processes on the traffic information data and transmitting the processed data. Thus, robustness is provided to the traffic information data, thereby enabling the data to respond strongly against the channel environment which is always under constant and vast change.
    Type: Grant
    Filed: May 25, 2021
    Date of Patent: December 12, 2023
    Assignee: LG ELECTRONICS INC.
    Inventors: Jin Pil Kim, Young In Kim, Ho Taek Hong, In Hwan Choi, Kook Yeon Kwak, Hyoung Gon Lee, Byoung Gill Kim, Jin Woo Kim, Won Gyu Song, Jong Moon Kim