Patents by Inventor Hak-Ju Lee

Hak-Ju 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: 11840807
    Abstract: Disclosed is a base paper for eco-friendly paper cups and, more specifically, to a base paper for eco-friendly paper cups, which is eco-friendly by having recyclability and biodegradability while retaining water resistance, oil resistance, heat sealability, and block resistance required as a base paper for paper cups.
    Type: Grant
    Filed: July 8, 2020
    Date of Patent: December 12, 2023
    Assignee: HANKUK PAPER MFG CO., LTD.
    Inventors: Ik-Sun Choi, Hak-Ju Lee, Yoon-Hee Noh, Jong-Soo Kim
  • Patent number: 11804999
    Abstract: A method of determining reserved tones to be used for reduction of a peak to average power ratio (PAPR) of a signal includes: randomly selecting carrier indices for the reserved tones and generating a kernel signal based on the randomly selected carrier indices for the reserved tones; calculating a comparison reference average value of the kernel signal, comparing the calculated comparison reference average value with a prestored comparison reference average value, and preliminarily determining carrier indices of the reserved tones based on the comparison; re-arranging an order of the preliminarily determined carrier indices of the reserved tones; calculating comparison reference average values of kernel signals generated by changing each of the re-arranged carrier indices of the reserved tones, and finally determining carrier indices of the reserved tones which generate a kerneal signal having the smallest comparison reference average value among the comparison reference average values as indices of the rese
    Type: Grant
    Filed: May 6, 2022
    Date of Patent: October 31, 2023
    Assignee: SAMSUNG ELECTRONICS CO., LTD.
    Inventors: Young-ho Oh, Hak-ju Lee
  • Patent number: 11770336
    Abstract: Provided are a transmitting apparatus, a receiving apparatus and controlling methods thereof. The transmitting apparatus includes: at least one processor configured to implement a packet generator which generates a packet including a header and a payload based on a plurality of input packets; and a signal processor which signal-processes the generated packet, and a transmitter configured to transmit the signal-processed packet. A base field included in the header includes a first field set to a first value representing that the base field is a first length or a second value representing that the base field is a second length.
    Type: Grant
    Filed: February 14, 2022
    Date of Patent: September 26, 2023
    Assignee: SAMSUNG ELECTRONICS CO., LTD.
    Inventors: Sung-hee Hwang, Hak-ju Lee, Hyun-Koo Yang
  • Publication number: 20230275982
    Abstract: Provided are a data structure including a header area, and a payload area comprising data, a method of generating the data structure, and extracting information from the data structure. At least one of the header area and the payload area includes at least one sub-area in which one or more signal fields are included. At least one signal field among the signal fields includes information for signalling presence or absence of one or more information fields located at least partly in the data structure, the one or more information fields corresponding to the one or more signal fields.
    Type: Application
    Filed: May 8, 2023
    Publication date: August 31, 2023
    Applicant: SAMSUNG ELECTRONICS CO., LTD.
    Inventors: Alain MOURAD, Sung-hee HWANG, Daniel ANSORREGUI, Belkacem MOUHOUCHE, Hak-ju LEE
  • Patent number: 11677867
    Abstract: Provided are a data structure including a header area, and a payload area comprising data, a method of generating the data structure, and extracting information from the data structure. At least one of the header area and the payload area includes at least one sub-area in which one or more signal fields are included. At least one signal field among the signal fields includes information for signalling presence or absence of one or more information fields located at least partly in the data structure, the one or more information fields corresponding to the one or more signal fields.
    Type: Grant
    Filed: October 1, 2020
    Date of Patent: June 13, 2023
    Assignee: SAMSUNG ELECTRONICS CO., LTD.
    Inventors: Alain Mourad, Sung-hee Hwang, Daniel Ansorregui, Belkacem Mouhouche, Hak-ju Lee
  • Publication number: 20230179363
    Abstract: A transmitting apparatus includes: a frame generator configured to generate a frame including a plurality of OFDM symbols; and a signal processor configured to signal-process the generated frame, wherein the plurality of OFDM symbols are included in a bootstrap, a preamble including an L1 basic and an L1 detail, and a payload, and wherein the bootstrap includes information on an FFT size of the OFDM symbols included in the preamble, a length of a guard interval (GI) inserted in the preamble, and a pattern of a preamble pilot inserted in the preamble, and information on an L1 basic mode.
    Type: Application
    Filed: February 6, 2023
    Publication date: June 8, 2023
    Applicant: SAMSUNG ELECTRONICS CO., LTD.
    Inventors: Young-ho OH, Se-ho MYUNG, Hak-ju LEE
  • Patent number: 11622345
    Abstract: Methods and an apparatuses are provided for transmitting and receiving signaling information in a digital broadcasting system. A method includes encoding first signaling information for a physical layer to generate a first coded block; encoding second signaling information to generate a second coded block; and transmitting a frame including the first coded block, the second coded block, and at least one physical layer pipe (PLP) data. The first signaling information has a fixed number of bits. The second signaling information has a variable number of bits. The first signaling information comprises information indicating a forward error correction (FEC) type used for the second signaling information. The second signaling information comprises information indicating a modulation scheme of a related PLP, and information indicating a code rate of the related PLP.
    Type: Grant
    Filed: February 11, 2022
    Date of Patent: April 4, 2023
    Inventors: Hwan-Joon Kwon, Hak-Ju Lee, Jae-Yoel Kim, Yeon-Ju Lim, Sung-Ryul Yun, Hong-Sil Jeong, Seho Myung
  • Patent number: 11616514
    Abstract: An apparatus is provided for channel encoding in a communication system using an LDPC code. The apparatus includes at least one processor configured to encode input bits using a Bose-Chaudhuri-Hocquenghem (BCH) code, shorten one or more bits of the encoded input bits according to a number of bit groups to be shortened and an order among a plurality of orders according to which the bit groups are shortened, wherein the number of bit groups to be shortened is based on a number of bits to be shortened which is based on a number of the encoded input bits, encode information bits including the encoded input bits and the shortened one or more bits, using an LDPC code to generate parity bits, and puncture one or more bits in the parity bits based on a puncturing parameter among puncturing parameters; and a transmitter configured to transmit a signal that is generated from the encoded information bits based on the punctured one or more bits.
    Type: Grant
    Filed: June 21, 2021
    Date of Patent: March 28, 2023
    Inventors: Se-Ho Myung, Hong-Sil Jeong, Sung-Ryul Yun, Jae-Yoel Kim, Hyun-Koo Yang, Hak-Ju Lee, Jin-Hee Jeong
  • Patent number: 11595169
    Abstract: A transmitting apparatus includes: a frame generator configured to generate a frame including a plurality of OFDM symbols; and a signal processor configured to signal-process the generated frame, wherein the plurality of OFDM symbols are included in a bootstrap, a preamble including an L1 basic and an L1 detail, and a payload, and wherein the bootstrap includes information on an FFT size of the OFDM symbols included in the preamble, a length of a guard interval (GI) inserted in the preamble, and a pattern of a preamble pilot inserted in the preamble, and information on an L1 basic mode.
    Type: Grant
    Filed: November 9, 2020
    Date of Patent: February 28, 2023
    Assignee: SAMSUNG ELECTRONICS CO., LTD.
    Inventors: Young-ho Oh, Se-ho Myung, Hak-ju Lee
  • Publication number: 20220263695
    Abstract: A method of determining reserved tones to be used for reduction of a peak to average power ratio (PAPR) of a signal includes: randomly selecting carrier indices for the reserved tones and generating a kernel signal based on the randomly selected carrier indices for the reserved tones; calculating a comparison reference average value of the kernel signal, comparing the calculated comparison reference average value with a prestored comparison reference average value, and preliminarily determining carrier indices of the reserved tones based on the comparison; re-arranging an order of the preliminarily determined carrier indices of the reserved tones; calculating comparison reference average values of kernel signals generated by changing each of the re-arranged carrier indices of the reserved tones, and finally determining carrier indices of the reserved tones which generate a kerneal signal having the smallest comparison reference average value among the comparison reference average values as indices of the rese
    Type: Application
    Filed: May 6, 2022
    Publication date: August 18, 2022
    Applicant: SAMSUNG ELECTRONICS CO., LTD.
    Inventors: Young-ho OH, Hak-ju LEE
  • Patent number: 11374804
    Abstract: A method of determining reserved tones to be used for reduction of a peak to average power ratio (PAPR) of a signal includes: randomly selecting carrier indices for the reserved tones and generating a kernel signal based on the randomly selected carrier indices for the reserved tones; calculating a comparison reference average value of the kernel signal, comparing the calculated comparison reference average value with a prestored comparison reference average value, and preliminarily determining carrier indices of the reserved tones based on the comparison; re-arranging an order of the preliminarily determined carrier indices of the reserved tones; calculating comparison reference average values of kernel signals generated by changing each of the re-arranged carrier indices of the reserved tones, and finally determining carrier indices of the reserved tones which generate a kernel signal having the smallest comparison reference average value among the comparison reference average values as indices of the reser
    Type: Grant
    Filed: November 28, 2018
    Date of Patent: June 28, 2022
    Assignee: SAMSUNG ELECTRONICS CO., LTD.
    Inventors: Young-ho Oh, Hak-ju Lee
  • Publication number: 20220167341
    Abstract: Methods and an apparatuses are provided for transmitting and receiving signaling information in a digital broadcasting system. A method includes encoding first signaling information for a physical layer to generate a first coded block; encoding second signaling information to generate a second coded block; and transmitting a frame including the first coded block, the second coded block, and at least one physical layer pipe (PLP) data. The first signaling information has a fixed number of bits. The second signaling information has a variable number of bits. The first signaling information comprises information indicating a forward error correction (FEC) type used for the second signaling information. The second signaling information comprises information indicating a modulation scheme of a related PLP, and information indicating a code rate of the related PLP.
    Type: Application
    Filed: February 11, 2022
    Publication date: May 26, 2022
    Inventors: Hwan-Joon Kwon, Hak-Ju Lee, Jae-Yoel Kim, Yeon-Ju Lim, Sung-Ryul Yun, Hong-Sil Jeong, Seho Myung
  • Publication number: 20220166716
    Abstract: Provided are a transmitting apparatus, a receiving apparatus and controlling methods thereof. The transmitting apparatus includes: at least one processor configured to implement a packet generator which generates a packet including a header and a payload based on a plurality of input packets; and a signal processor which signal-processes the generated packet, and a transmitter configured to transmit the signal-processed packet. A base field included in the header includes a first field set to a first value representing that the base field is a first length or a second value representing that the base field is a second length.
    Type: Application
    Filed: February 14, 2022
    Publication date: May 26, 2022
    Applicant: SAMSUNG ELECTRONICS CO., LTD.
    Inventors: Sung-hee HWANG, Hak-ju Lee, Hyun-Koo Yang
  • Patent number: 11336389
    Abstract: A transmission device is disclosed. The transmitting device comprises a processor for generating a packet comprising a header and a payload, on the basis of an input packet, and generating a frame comprising the generated packet, and a transmission unit for transmitting a signal generated on the basis of the frame. The processor inserts padding into at least one packet from among a plurality of packets included in the frame, on the basis of the number of packets included in the frame, the length of each input packet included in the frame, and the lengths of the packets. Here, the boundary of an input packet may be included in a packet into which padding is inserted.
    Type: Grant
    Filed: June 4, 2018
    Date of Patent: May 17, 2022
    Assignee: Samsung Electronics Co., Ltd.
    Inventors: Hyun-koo Yang, Young-ho Oh, Hak-ju Lee
  • Patent number: 11283714
    Abstract: Provided are a transmitting apparatus, a receiving apparatus and controlling methods thereof. The transmitting apparatus includes: at least one processor configured to implement a packet generator which generates a packet including a header and a payload based on a plurality of input packets; and a signal processor which signal-processes the generated packet, and a transmitter configured to transmit the signal-processed packet. A base field included in the header includes a first field set to a first value representing that the base field is a first length or a second value representing that the base field is a second length.
    Type: Grant
    Filed: March 4, 2020
    Date of Patent: March 22, 2022
    Assignee: SAMSUNG ELECTRONICS CO., LTD.
    Inventors: Sung-hee Hwang, Hak-ju Lee, Hyun-Koo Yang
  • Patent number: 11252700
    Abstract: A method and an apparatus are provided for receiving signaling information in a digital broadcasting system. The method includes receiving a frame including a first coded block, a second coded block, and at least one physical layer pipe (PLP) data; decoding the first coded block to identify first signaling information for a physical layer; and decoding the second coded block to identify second signaling information. The first signaling information has a fixed number of bits. The second signaling information has a variable number of bits. The first signaling information includes information indicating a forward error correction (FEC) type of the second signaling information for receiving the second signaling information. The second signaling information includes information indicating a modulation scheme used for related PLP data.
    Type: Grant
    Filed: March 13, 2020
    Date of Patent: February 15, 2022
    Inventors: Hwan-Joon Kwon, Hak-Ju Lee, Jae-Yoel Kim, Yeon-Ju Lim, Sung-Ryul Yun, Hong-Sil Jeong, Seho Myung
  • Patent number: 11202112
    Abstract: A receiver is disclosed. The present receiver comprises: a reception unit for receiving, through a channel, a frame in which an LLS for each broadcast service is included in different PLPs; and a signal processing unit for calculating the size of a memory required to time-deinterleave the PLPs including the LLS, and for processing the PLPs including the LLS, on the basis of the calculated size of the memory.
    Type: Grant
    Filed: March 3, 2017
    Date of Patent: December 14, 2021
    Assignee: SAMSUNG ELECTRONICS CO., LTD.
    Inventors: Hyun-koo Yang, Young-ho Oh, Hak-ju Lee
  • Publication number: 20210314002
    Abstract: An apparatus is provided for channel encoding in a communication system using an LDPC code. The apparatus includes at least one processor configured to encode input bits using a Bose-Chaudhuri-Hocquenghem (BCH) code, shorten one or more bits of the encoded input bits according to a number of bit groups to be shortened and an order among a plurality of orders according to which the bit groups are shortened, wherein the number of bit groups to be shortened is based on a number of bits to be shortened which is based on a number of the encoded input bits, encode information bits including the encoded input bits and the shortened one or more bits, using an LDPC code to generate parity bits, and puncture one or more bits in the parity bits based on a puncturing parameter among puncturing parameters; and a transmitter configured to transmit a signal that is generated from the encoded information bits based on the punctured one or more bits.
    Type: Application
    Filed: June 21, 2021
    Publication date: October 7, 2021
    Inventors: Se-Ho MYUNG, Hong-Sil JEONG, Sung-Ryul YUN, Jae-Yoel KIM, Hyun-Koo YANG, Hak-Ju LEE, Jin-Hee JEONG
  • Publication number: 20210285157
    Abstract: Disclosed is a base paper for eco-friendly paper cups and, more specifically, to a base paper for eco-friendly paper cups, which is eco-friendly by having recyclability and biodegradability while retaining water resistance, oil resistance, heat sealability, and block resistance required as a base paper for paper cups.
    Type: Application
    Filed: July 8, 2020
    Publication date: September 16, 2021
    Inventors: Ik-Sun Choi, Hak-Ju Lee, Yoon-Hee Noh, Jong-Soo Kim
  • Publication number: 20210285158
    Abstract: Disclosed is a method for manufacturing a base paper for eco-friendly paper cups and, more specifically, to a method for manufacturing a base paper for eco-friendly paper cups, the method enabling the manufacturing of a base paper for eco-friendly cups, which has excellent heat sealability, water resistance, and block resistance, facilitates recycling, and is biodegradable in nature.
    Type: Application
    Filed: July 8, 2020
    Publication date: September 16, 2021
    Inventors: Ik-Sun Choi, Hak-Ju Lee, Yoon-Hee Noh, Jong-Soo Kim