Patents by Inventor Doo-chan HWANG

Doo-chan HWANG 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: 10389777
    Abstract: A transmitting apparatus is provided. The transmitting apparatus includes: an L1 signaling generator configured to generate L1 signaling including first information and second information; a frame generator configured to generate a frame including a payload including a plurality of sub frames; and a signal processor configured to insert a preamble including the L1 signaling in the frame and transmit the frame. The first information includes information required for decoding a first sub frame among the plurality of sub frames. Therefore, a processing delay in a receiving apparatus is reduced.
    Type: Grant
    Filed: March 4, 2019
    Date of Patent: August 20, 2019
    Assignee: SAMSUNG ELECTRONICS CO., LTD.
    Inventors: Jung-hyun Park, Min-ho Kim, Sung-woo Park, Sung-kyu Jung, Chang-hoon Choi, Doo-chan Hwang
  • Publication number: 20190199764
    Abstract: A transmitting apparatus is provided. The transmitting apparatus includes: an L1 signaling generator configured to generate L1 signaling including first information and second information; a frame generator configured to generate a frame including a payload including a plurality of sub frames; and a signal processor configured to insert a preamble including the L1 signaling in the frame and transmit the frame. The first information includes information required for decoding a first sub frame among the plurality of sub frames. Therefore, a processing delay in a receiving apparatus is reduced.
    Type: Application
    Filed: March 4, 2019
    Publication date: June 27, 2019
    Applicant: Samsung Electronics Co, Ltd.
    Inventors: Jung-hyun Park, Min-ho Kim, Sung-woo Park, Sung-kyu Jung, Chang-hoon Choi, Doo-chan Hwang
  • Publication number: 20190158926
    Abstract: A device may receive a request associated with adjusting the media output level of a sink device that is configured to output media content. The device may identify a source gain of a source device that is configured to provide the media content to the sink device, and a sink gain of the sink device. The device may identify a sink adjustment value for changing the sink gain based on the request for adjusting the media output level of the sink device, the source gain, and the sink gain. The device may transmit, to the sink device, a control signal to permit the sink gain to be changed based on the sink adjustment value. The media output level of the sink device is based on the source gain and the sink gain.
    Type: Application
    Filed: November 20, 2018
    Publication date: May 23, 2019
    Applicant: SAMSUNG ELECTRONICS CO., LTD.
    Inventors: Woo Seok KANG, Doo Hyun KIM, Sang Kwon NA, Ki Won YOO, Chul Woo LEE, Jin Joo CHUNG, Doo Chan HWANG
  • Publication number: 20190097856
    Abstract: A method and apparatus for generating a preamble symbol in an Orthogonal Frequency Division Multiplexing (OFDM) system by generating a first main body sequence in a time domain by performing an inverse fast Fourier transform (IFFT) on a preset sequence in a frequency domain, generating a first postfix by copying samples in a preset section in the first main body sequence, generating a first prefix by copying samples in at least a portion of a section remaining by excluding the preset section from the first main body sequence, and generating a plurality of symbols, based on a combination of the first main body sequence, the first prefix, and the first postfix.
    Type: Application
    Filed: June 28, 2018
    Publication date: March 28, 2019
    Applicant: SAMSUNG ELECTRONICS CO., LTD.
    Inventors: Min-ho KIM, Jung-hyun PARK, Nam-hyun KIM, Joon-young LEE, Jin-joo CHUNG, Doo-chan HWANG
  • Patent number: 10225297
    Abstract: A transmitting apparatus is provided. The transmitting apparatus includes: an L1 signaling generator configured to generate L1 signaling including first information and second information; a frame generator configured to generate a frame including a payload including a plurality of sub frames; and a signal processor configured to insert a preamble including the L1 signaling in the frame and transmit the frame. The first information includes information required for decoding a first sub frame among the plurality of sub frames. Therefore, a processing delay in a receiving apparatus is reduced.
    Type: Grant
    Filed: April 23, 2018
    Date of Patent: March 5, 2019
    Assignee: SAMSUNG ELECTRONICS CO., LTD.
    Inventors: Jung-hyun Park, Min-ho Kim, Sung-woo Park, Sung-kyu Jung, Chang-hoon Choi, Doo-chan Hwang
  • Publication number: 20190068314
    Abstract: Provided is a broadcast signal transmitting method including: generating a first bitstream including encoded data; generating a second bitstream by adding zero bits to the first bitstream, based on a difference between a modem data rate and a codec data rate; generating a third bitstream by encoding the second bitstream by using zero padding information about the zero bits; and transmitting a carrier signal generated by modulating the third bitstream.
    Type: Application
    Filed: June 28, 2018
    Publication date: February 28, 2019
    Applicant: SAMSUNG ELECTRONICS CO., LTD.
    Inventors: Jung-hyun PARK, Nam-hyun KIM, Min-ho KIM, Joon-young LEE, Jin-joo CHUNG, Doo-chan HWANG
  • Publication number: 20180324485
    Abstract: A receiving apparatus is provided. The receiving apparatus includes: a receiver configured to receive an input signal including a transmission frame which includes a bootstrap, a preamble, and a payload; a bootstrap detector configured to detect the bootstrap based on a correlation between the input signal and a reference signal which is pre-stored; and a signal processor configured to signal-process the preamble based on the detected bootstrap and signal-process the payload based on the signal-processed preamble, and the bootstrap detector is configured to determine the correlation by quantizing at least one of the input signal and the reference signal and then multiplexing the input signal and the reference signal at least one of which is quantized. Accordingly, an area occupied by hardware and cost can be reduced and loss of performance can be minimized.
    Type: Application
    Filed: July 9, 2018
    Publication date: November 8, 2018
    Applicant: SAMSUNG ELECTRONICS CO., LTD.
    Inventors: Min-ho KIM, Jung-hyun PARK, Sung-kyu JUNG, Doo-chan HWANG
  • Publication number: 20180241790
    Abstract: A transmitting apparatus is provided. The transmitting apparatus includes: an L1 signaling generator configured to generate L1 signaling including first information and second information; a frame generator configured to generate a frame including a payload including a plurality of sub frames; and a signal processor configured to insert a preamble including the L1 signaling in the frame and transmit the frame. The first information includes information required for decoding a first sub frame among the plurality of sub frames. Therefore, a processing delay in a receiving apparatus is reduced.
    Type: Application
    Filed: April 23, 2018
    Publication date: August 23, 2018
    Applicant: SAMSUNG ELECTRONICS CO., LTD.
    Inventors: Jung-hyun PARK, Min-ho KIM, Sung-woo PARK, Sung-kyu JUNG, Chang-hoon CHOI, Doo-chan HWANG
  • Patent number: 10021447
    Abstract: A receiving apparatus is provided. The receiving apparatus includes: a receiver configured to receive an input signal including a transmission frame which includes a bootstrap, a preamble, and a payload; a bootstrap detector configured to detect the bootstrap based on a correlation between the input signal and a reference signal which is pre-stored; and a signal processor configured to signal-process the preamble based on the detected bootstrap and signal-process the payload based on the signal-processed preamble, and the bootstrap detector is configured to determine the correlation by quantizing at least one of the input signal and the reference signal and then multiplexing the input signal and the reference signal at least one of which is quantized. Accordingly, an area occupied by hardware and cost can be reduced and loss of performance can be minimized.
    Type: Grant
    Filed: July 22, 2016
    Date of Patent: July 10, 2018
    Assignee: SAMSUNG ELECTRONICS CO., LTD.
    Inventors: Min-ho Kim, Jung-hyun Park, Sung-kyu Jung, Doo-chan Hwang
  • Patent number: 9954917
    Abstract: A transmitting apparatus is provided. The transmitting apparatus includes: an L1 signaling generator configured to generate L1 signaling including first information and second information; a frame generator configured to generate a frame including a payload including a plurality of sub frames; and a signal processor configured to insert a preamble including the L1 signaling in the frame and transmit the frame. The first information includes information required for decoding a first sub frame among the plurality of sub frames. Therefore, a processing delay in a receiving apparatus is reduced.
    Type: Grant
    Filed: July 22, 2016
    Date of Patent: April 24, 2018
    Assignee: SAMSUNG ELECTRONICS CO., LTD.
    Inventors: Jung-hyun Park, Min-ho Kim, Sung-woo Park, Sung-kyu Jung, Chang-hoon Choi, Doo-chan Hwang
  • Publication number: 20170214964
    Abstract: A receiving apparatus is provided. The receiving apparatus includes: a receiver configured to receive an input signal including a transmission frame which includes a bootstrap, a preamble, and a payload; a bootstrap detector configured to detect the bootstrap based on a correlation between the input signal and a reference signal which is pre-stored; and a signal processor configured to signal-process the preamble based on the detected bootstrap and signal-process the payload based on the signal-processed preamble, and the bootstrap detector is configured to determine the correlation by quantizing at least one of the input signal and the reference signal and then multiplexing the input signal and the reference signal at least one of which is quantized. Accordingly, an area occupied by hardware and cost can be reduced and loss of performance can be minimized.
    Type: Application
    Filed: July 22, 2016
    Publication date: July 27, 2017
    Applicant: SAMSUNG ELECTRONICS CO., LTD.
    Inventors: Min-ho KIM, Jung-hyun PARK, Sung-kyu JUNG, Doo-chan HWANG
  • Publication number: 20170026432
    Abstract: A transmitting apparatus is provided. The transmitting apparatus includes: an L1 signaling generator configured to generate L1 signaling including first information and second information; a frame generator configured to generate a frame including a payload including a plurality of sub frames; and a signal processor configured to insert a preamble including the L1 signaling in the frame and transmit the frame. The first information includes information required for decoding a first sub frame among the plurality of sub frames. Therefore, a processing delay in a receiving apparatus is reduced.
    Type: Application
    Filed: July 22, 2016
    Publication date: January 26, 2017
    Applicant: SAMSUNG ELECTRONICS CO., LTD.
    Inventors: Jung-hyun PARK, Min-ho KIM, Sung-woo PARK, Sung-kyu JUNG, Chang-hoon CHOI, Doo-chan HWANG