Patents by Inventor Woo Suk Ko

Woo Suk Ko 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: 10320426
    Abstract: The present invention relates to a method of transmitting and a method of receiving signals and corresponding apparatus. One aspect of the present invention relates to an efficient L1 signaling method for an efficient transmitter and an efficient receiver using the efficient L1 signaling method for an efficient cable broadcasting.
    Type: Grant
    Filed: August 29, 2016
    Date of Patent: June 11, 2019
    Assignee: LG ELECTRONICS INC.
    Inventors: Woo Suk Ko, Sang Chul Moon
  • Publication number: 20190123945
    Abstract: The present invention relates to a method of transmitting and a method of receiving signals, and corresponding apparatus. One aspect of the present invention relates to a method of obtaining a field for indicating a time de-interleaving depth from a layer 1 (L1) header of preamble symbols.
    Type: Application
    Filed: December 21, 2018
    Publication date: April 25, 2019
    Applicant: LG ELECTRONICS INC.
    Inventors: Woo Suk KO, Sang Chul MOON
  • Patent number: 10250357
    Abstract: A method for transmitting and receiving a signal and an apparatus for transmitting and receiving a signal are disclosed. The method includes receiving the signal from a first frequency band in a single frame including at least one frequency band, demodulating the received signal by an orthogonal frequency division multiplexing (OFDM) method and parsing the signal frame, acquiring a symbol stream of a service stream from the at least one frequency band included in the parsed signal frame, demapping symbols included in the symbol stream and outputting the demapped symbols to sub streams, multiplexing the output sub streams and outputting one bit stream, and deinterleaving and error-correction-decoding the output bit stream.
    Type: Grant
    Filed: April 22, 2016
    Date of Patent: April 2, 2019
    Assignee: LG ELECTRONICS INC.
    Inventors: Woo Suk Ko, Sang Chul Moon
  • Patent number: 10193723
    Abstract: The present invention relates to a method of transmitting and a method of receiving signals, and corresponding apparatus. One aspect of the present invention relates to a method of obtaining a field for indicating a time de-interleaving depth from a layer 1 (L1) header of preamble symbols.
    Type: Grant
    Filed: May 1, 2017
    Date of Patent: January 29, 2019
    Assignee: LG ELECTRONICS INC.
    Inventors: Woo Suk Ko, Sang Chul Moon
  • Patent number: 10153872
    Abstract: The present invention relates to method of transmitting and receiving signals and a corresponding apparatus. One aspect of the present invention relates to a method of receiving a signal, which includes an L1 signaling region where the L1 signaling has an adaptive L1 block structure for increased spectrum efficiency in a channel bonding environment.
    Type: Grant
    Filed: September 14, 2017
    Date of Patent: December 11, 2018
    Assignee: LG ELECTRONICS INC.
    Inventors: Woo Suk Ko, Sang Chul Moon
  • Patent number: 10116416
    Abstract: The present invention relates to a method of transmitting and receiving signals and a corresponding apparatus. One aspect of the present invention relates to a method of extracting PLP from data slices.
    Type: Grant
    Filed: April 6, 2017
    Date of Patent: October 30, 2018
    Assignee: LG ELECTRONICS INC.
    Inventors: Woo Suk Ko, Sang Chul Moon
  • Patent number: 10090859
    Abstract: A method for transmitting broadcast signals includes LDPC (Low Density Parity Check) encoding broadcast data, where the broadcast data is carried by a physical layer pipe (PLP); padding zero bits to signaling data; LDPC encoding the zero padded signaling data; removing the padded zero bits; time interleaving the LDPC encoded broadcast data, where the time interleaving is performed based on a skip operation by using a twisting parameter; building at least one signal frame including the time interleaved broadcast data and the zero removed signaling data, where when a first PLP and a second PLP are multiplexed, and the signaling data includes information related to the second LP with which the first PLP is associated.
    Type: Grant
    Filed: July 18, 2017
    Date of Patent: October 2, 2018
    Assignee: LG ELECTRONICS INC.
    Inventors: Woo Suk Ko, Sang Chul Moon
  • Patent number: 10090950
    Abstract: The present invention relates to a method of transmitting and receiving signals and a corresponding apparatus. One aspect of the present invention relates to a method of receiving a signal, which includes interleaving in an appropriate manner for a channel bonding system. The interleaving can allow decoding a user requested service at a random tuner window position.
    Type: Grant
    Filed: June 2, 2017
    Date of Patent: October 2, 2018
    Assignee: LG ELECTRONICS INC.
    Inventors: Woo Suk Ko, Sang Chul Moon
  • Patent number: 10009206
    Abstract: A method for transmitting and receiving a signal and an apparatus for transmitting and receiving a signal are disclosed. The method for receiving the signal includes receiving (S210) the signal in a first frequency band, identifying (S220) a first pilot signal including, a cyclic prefix obtained by frequency-shifting a first portion of an useful portion of the first pilot signal and a cyclic suffix obtained by frequency-shifting a second portion of the useful portion of the first pilot signal from the received signal, demodulating (S220) a signal frame including a physical layer pipe (PLP) to which a service stream is converted, by an orthogonal frequency division multiplexing (OFDM) scheme, using information set in the first pilot signal, parsing (S230) the signal frame and obtaining the PLP and obtaining (S240) the service stream from the PLP.
    Type: Grant
    Filed: August 8, 2017
    Date of Patent: June 26, 2018
    Assignee: LG ELECTRONICS INC.
    Inventors: Woo Suk Ko, Sang Chul Moon
  • Patent number: 10003359
    Abstract: The present invention relates to a method of transmitting and a method of receiving signals and corresponding apparatus. One aspect of the present invention relates to an efficient layer 1 (L1) processing method for a transmitter and a receiver using data slices.
    Type: Grant
    Filed: April 8, 2016
    Date of Patent: June 19, 2018
    Assignee: LG ELECTRONICS INC.
    Inventors: Woo Suk Ko, Sang Chul Moon
  • Patent number: 9917715
    Abstract: A method of transmitting and receiving a signal and an apparatus for transmitting and receiving a signal are provided. The method includes receiving the signal of a first frequency band, obtaining Layer-1 (L1) information from a preamble of a first time-frequency slicing (TFS) signal frame of the received signal, the layer-1 information including a radio frequency (RF) channel identifier of the first TFS signal frame including a physical layer pipe (PLP) in a super frame of TFS structure and including an identifier of a starting radio RF channel that can receive the PLP in the first TFS signal frame, parsing the first TFS signal frame using the L1 information and obtaining a PLP of the first TFS signal frame, and converting the PLP to a service stream.
    Type: Grant
    Filed: January 18, 2017
    Date of Patent: March 13, 2018
    Assignee: LG ELECTRONICS INC.
    Inventors: Woo Suk Ko, Sang Chul Moon
  • Patent number: 9887850
    Abstract: A broadcasting signal reception method according to the present invention comprises the following steps: OFDM-demodulating by receiving a plurality of broadcasting signals, which contain a transmission frame for transmitting a broadcasting service; outputting the transmission frame by decoding a plurality of OFDM-demodulated broadcasting signals with at least one method among MIMO, MISO, and SISO; and selectively decoding a plurality of PLP's, which are included in the transmission frame, using signaling information included in the transmission frame. In particular, PSI/SI such as PAT/PMT can be transmitted through an arbitrary PLP among the plurality of PLP's; and in the transmitter, an arbitrary PLP, which transmits the PAT/PMP, can be decoded first to enable a search of all PLP's that transmit components included in a single broadcasting service, and a plurality of PLP's can be decoded selectively.
    Type: Grant
    Filed: February 8, 2011
    Date of Patent: February 6, 2018
    Assignee: LG ELECTRONICS INC.
    Inventors: Woo Suk Ko, Sangchul Moon, Jeong Hwan Park, Ho Taek Hong
  • Patent number: 9882763
    Abstract: According to one embodiment, a method of transmitting at least one broadcasting signal having PLP (Physical Layer Pipe) data and preamble data includes: encoding the PLP data; encoding the preamble data; mapping the encoded PLP data to PLP data symbols by QAM (Quadrature Amplitude Modulation) modulations; mapping the encoded preamble data to preamble data symbols by QAM modulations; building a signal frame including the PLP data symbols and the preamble data symbols, wherein the preamble data symbols include first signaling information and second signaling information, wherein the first signaling information is for the second signaling information and includes size information of the second signaling information, and wherein the second signaling information is for the PLP data symbols; modulating the signal frame by an Orthogonal Frequency Division Multiplexing (OFDM) method; and transmitting the modulated signal frame.
    Type: Grant
    Filed: March 23, 2017
    Date of Patent: January 30, 2018
    Assignee: LG ELECTRONICS INC.
    Inventors: Woo Suk Ko, Sang Chul Moon
  • Publication number: 20180006777
    Abstract: The present invention relates to method of transmitting and receiving signals and a corresponding apparatus. One aspect of the present invention relates to a method of receiving a signal, which includes an L1 signaling region where the L1 signaling has an adaptive L1 block structure for increased spectrum efficiency in a channel bonding environment.
    Type: Application
    Filed: September 14, 2017
    Publication date: January 4, 2018
    Applicant: LG ELECTRONICS INC.
    Inventors: Woo Suk KO, Sang Chul MOON
  • Patent number: 9847795
    Abstract: A method is provided for receiving a signal. The method includes receiving a signal transmitted in a radio frequency (RF) band including at least one RF channel, demodulating the received signal, parsing a preamble of a signal frame including layer-1 information from the demodulated signal, deinterleaving bits of the layer-1 information, decoding the deinterleaved bits using an error correction decoding scheme including a shortening scheme and a puncturing scheme and obtaining physical layer pipes (PLPs) from the signal frame using the error-correction-decoded layer-1 information.
    Type: Grant
    Filed: February 17, 2016
    Date of Patent: December 19, 2017
    Assignee: LG ELECTRONICS INC.
    Inventors: Woo Suk Ko, Sang Chul Moon
  • Publication number: 20170353196
    Abstract: The present invention relates to a method of transmitting and a method of receiving signals and corresponding apparatus. One aspect of the present invention relates to an efficient L1 signaling method for an efficient transmitter and an efficient receiver using the efficient L1 signaling method for an efficient cable broadcasting.
    Type: Application
    Filed: July 18, 2017
    Publication date: December 7, 2017
    Inventors: Woo Suk KO, Sang Chul MOON
  • Publication number: 20170338991
    Abstract: A method for transmitting and receiving a signal and an apparatus for transmitting and receiving a signal are disclosed. The method for receiving the signal includes receiving (S210) the signal in a first frequency band, identifying (S220) a first pilot signal including, a cyclic prefix obtained by frequency-shifting a first portion of an useful portion of the first pilot signal and a cyclic suffix obtained by frequency-shifting a second portion of the useful portion of the first pilot signal from the received signal, demodulating (S220) a signal frame including a physical layer pipe (PLP) to which a service stream is converted, by an orthogonal frequency division multiplexing (OFDM) scheme, using information set in the first pilot signal, parsing (S230) the signal frame and obtaining the PLP and obtaining (S240) the service stream from the PLP.
    Type: Application
    Filed: August 8, 2017
    Publication date: November 23, 2017
    Inventors: Woo Suk KO, Sang Chul MOON
  • Publication number: 20170331655
    Abstract: The present invention relates to a method of transmitting and a method of receiving signals, and corresponding apparatus. One aspect of the present invention relates to a method of obtaining a field for indicating a time de-interleaving depth from a layer 1 (L1) header of preamble symbols.
    Type: Application
    Filed: May 1, 2017
    Publication date: November 16, 2017
    Applicant: LG ELECTRONICS INC.
    Inventors: Woo Suk KO, Sang Chul MOON
  • Patent number: 9806861
    Abstract: The present invention relates to method of transmitting and receiving signals and a corresponding apparatus. One aspect of the present invention relates to a method of receiving a signal, which includes an L1 signaling region where the L1 signaling has an adaptive L1 block structure for increased spectrum efficiency in a channel bonding environment.
    Type: Grant
    Filed: December 27, 2016
    Date of Patent: October 31, 2017
    Assignee: LG ELECTRONICS INC.
    Inventors: Woo Suk Ko, Sang Chul Moon
  • Publication number: 20170272188
    Abstract: The present invention relates to a method of transmitting and receiving signals and a corresponding apparatus. One aspect of the present invention relates to a method of receiving a signal, which includes interleaving in an appropriate manner for a channel bonding system. The interleaving can allow decoding a user requested service at a random tuner window position.
    Type: Application
    Filed: June 2, 2017
    Publication date: September 21, 2017
    Inventors: Woo Suk KO, Sang Chui MOON