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).

  • Publication number: 20140016720
    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 12, 2013
    Publication date: January 16, 2014
    Inventors: Woo Suk KO, Sang Chul MOON
  • Publication number: 20130343468
    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: Application
    Filed: February 8, 2011
    Publication date: December 26, 2013
    Applicant: L G ELECTRONICS INC.
    Inventors: Woo Suk Ko, Sangchul Moon, Jeong Hwan Park, Ho Taek Hong
  • Patent number: 8565339
    Abstract: According to one embodiment, a method of transmitting a broadcast signal includes: encoding physical layer pipe (PLP) data for delivering a service; mapping the encoded PLP data to symbols; building a signal frame based on the mapped symbols; modulating the signal frame according to an orthogonal frequency division multiplexing (OFDM) scheme; inserting a pilot symbol into a beginning part of the modulated signal frame; and transmitting the broadcast signal including the signal frame and the inserted pilot symbol. The pilot symbol comprises an effective portion, a cyclic prefix obtained by frequency-shifting a first portion of the effective portion, and a cyclic suffix obtained by frequency-shifting a second portion of the effective portion.
    Type: Grant
    Filed: September 14, 2012
    Date of Patent: October 22, 2013
    Assignee: LG Electronics Inc.
    Inventors: Woo Suk Ko, Sang Chul Moon
  • Publication number: 20130232394
    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: Application
    Filed: January 2, 2013
    Publication date: September 5, 2013
    Applicant: LG ELECTRONICS INC.
    Inventors: Woo Suk KO, Sang Chul MOON
  • Patent number: 8503551
    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: May 13, 2009
    Date of Patent: August 6, 2013
    Assignee: LG Electronics Inc.
    Inventors: Woo Suk Ko, Sang Chul Moon
  • Patent number: 8503550
    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 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: May 12, 2009
    Date of Patent: August 6, 2013
    Assignee: LG Electronics Inc.
    Inventors: Woo Suk Ko, Sang Chul Moon
  • Patent number: 8503549
    Abstract: The present invention relates to method of transmitting and receiving signaling and a corresponding apparatus. One aspect of the present invention relates to a method of receiving a signal, which includes a preamble, where a bandwidth of the preamble is identical with a bandwidth of a tuner of a receiver.
    Type: Grant
    Filed: May 12, 2009
    Date of Patent: August 6, 2013
    Assignee: LG Electronics Inc.
    Inventors: Woo Suk Ko, Sang Chul Moon
  • Patent number: 8493912
    Abstract: A method of transmitting and receiving a signal and an apparatus for transmitting and receiving a signal are disclosed. The method includes receiving the signal of a first frequency band, obtaining, layer-1 information from a preamble of the first time-frequency slicing (TFS) signal frame of the received signal, said layer-1 information including an index of a current radio frequency (RF) channel within time-frequency slicing (TFS) signal frame, and a radio frequency (RF) channel identifier of a first TFS signal frame including a physical layer pipe (PLP) in a super frame of TFS structure, parsing the TFS signal frame using the layer-1 information and obtaining the PLP of the TFS signal frame, and converting the PLP to a service stream.
    Type: Grant
    Filed: December 11, 2008
    Date of Patent: July 23, 2013
    Assignee: LG Electronics Inc.
    Inventors: Woo Suk Ko, Sang Chul Moon
  • Patent number: 8432881
    Abstract: A method of transmitting and receiving a signal and an apparatus for transmitting and receiving a signal are disclosed. The method includes receiving the signal of a first frequency band, obtaining layer-1 information from a preamble of the first time-frequency slicing (TFS) signal frame of the received signal, said layer-1 information including an index of a current radio frequency (RF) channel within a time-frequency slicing (TFS) signal frame, and an identifier of a starting radio frequency (RF) channel which can receive a physical layer pipe (PLP) in the TFS signal frame, parsing the TFS signal frame using the layer-1 information and obtaining a physical layer pipe (PLP) of the TFS signal frame, and converting the PLP to a service stream.
    Type: Grant
    Filed: December 11, 2008
    Date of Patent: April 30, 2013
    Assignee: LG Electronics Inc.
    Inventors: Woo Suk Ko, Sang Chul Moon
  • Publication number: 20130064314
    Abstract: According to one embodiment, a method of transmitting a broadcast signal includes: encoding physical layer pipe (PLP) data for delivering a service; mapping the encoded PLP data to symbols; building a signal frame based on the mapped symbols; modulating the signal frame according to an orthogonal frequency division multiplexing (OFDM) scheme; inserting a pilot symbol into a beginning part of the modulated signal frame; and transmitting the broadcast signal including the signal frame and the inserted pilot symbol. The pilot symbol comprises an effective portion, a cyclic prefix obtained by frequency-shifting a first portion of the effective portion, and a cyclic suffix obtained by frequency-shifting a second portion of the effective portion.
    Type: Application
    Filed: September 14, 2012
    Publication date: March 14, 2013
    Applicant: LG ELECTRONICS INC.
    Inventors: Woo Suk Ko, Sang Chul Moon
  • Patent number: 8385460
    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: December 11, 2008
    Date of Patent: February 26, 2013
    Assignee: LG Electronics Inc.
    Inventors: Woo Suk Ko, Sang Chul Moon
  • Patent number: 8370729
    Abstract: In one aspect of the present invention, the method receiving a signal is disclosed. 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: December 19, 2008
    Date of Patent: February 5, 2013
    Assignee: LG Electronics Inc.
    Inventors: Woo Suk Ko, Sang Chul Moon
  • Patent number: 8351539
    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: December 11, 2008
    Date of Patent: January 8, 2013
    Assignee: LG Electronics Inc.
    Inventors: Woo Suk Ko, Sang Chul Moon
  • Publication number: 20120151387
    Abstract: In a method for displaying interactive information of a web page, the method may include parsing a web page to determine if interactive information exists, generating a tool window including the interactive information if the interactive information exists on the web page, and outputting the tool window on a display.
    Type: Application
    Filed: September 8, 2011
    Publication date: June 14, 2012
    Applicant: PANTECH CO., LTD.
    Inventors: Woo Suk KO, Hyoung Sang PARK
  • Publication number: 20110305300
    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: Application
    Filed: May 12, 2009
    Publication date: December 15, 2011
    Inventor: Woo Suk Ko
  • Publication number: 20110299628
    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: Application
    Filed: May 13, 2009
    Publication date: December 8, 2011
    Inventors: Woo Suk Ko, Sang Chul Moon
  • Publication number: 20110286535
    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: May 13, 2009
    Publication date: November 24, 2011
    Inventors: Woo Suk Ko, Sang Chul Moon
  • Publication number: 20110280327
    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 12, 2009
    Publication date: November 17, 2011
    Inventors: Woo Suk Ko, Jinwoo Kim
  • Publication number: 20110274211
    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 23, 2009
    Publication date: November 10, 2011
    Inventors: Woo Suk Ko, Jinwoo Kim
  • Publication number: 20110274204
    Abstract: The present invention relates to method of transmitting and receiving signals and a 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: Application
    Filed: May 13, 2009
    Publication date: November 10, 2011
    Inventors: Woo Suk Ko, Jinwoo Kim