Patents by Inventor Yong-deok Chang

Yong-deok Chang 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: 10218428
    Abstract: A receiver and a detecting method thereof are provided. The receiver includes a plurality of antennas receiving a transmitted signal through multiple paths; and an equalizer collecting a plurality of sample signals by reflecting signals received in other antennas in the signals received in the plurality of antennas, and detecting a symbol of the transmitted signal by combining the plurality of sample signals that are collected with each other.
    Type: Grant
    Filed: March 24, 2017
    Date of Patent: February 26, 2019
    Assignees: SAMSUNG ELECTRONICS CO., LTD., KYUNGPOOK NATIONAL UNIVERSITY INDUSTRY-ACADEMIC COOPERATION FOUNDATION
    Inventors: Sun-bum Han, Bong Gyun Jo, Dong Seog Han, Won-sang Kim, In-kwon Paik, Dong-hoon Lee, Yong-deok Chang
  • Publication number: 20170346546
    Abstract: A receiver and a detecting method thereof are provided. The receiver includes a plurality of antennas receiving a transmitted signal through multiple paths; and an equalizer collecting a plurality of sample signals by reflecting signals received in other antennas in the signals received in the plurality of antennas, and detecting a symbol of the transmitted signal by combining the plurality of sample signals that are collected with each other.
    Type: Application
    Filed: March 24, 2017
    Publication date: November 30, 2017
    Applicants: Samsung Electronics Co., Ltd., Kyungpook National University Industry-Academic Cooperation Foundation
    Inventors: Sun-bum HAN, Bong Gyun JO, Dong Seog HAN, Won-sang KIM, In-kwon PAIK, Dong-hoon LEE, Yong-deok CHANG
  • Publication number: 20170150188
    Abstract: A broadcast receiving system including a broadcast receiving apparatus and a controlling method thereof are disclosed. The broadcast receiving apparatus includes a tuner configured to receive a broadcast signal including broadcast data from a broadcast transmitting apparatus, a communicator configured to receive an additional signal including broadcast data and header information regarding the broadcast data from a reference apparatus, and a processor configured to determine the broadcast data included in the additional signal based on the header information and align the broadcast data received from the broadcast transmitting apparatus by using the broadcast data included in the additional signal.
    Type: Application
    Filed: November 14, 2016
    Publication date: May 25, 2017
    Applicant: SAMSUNG ELECTRONICS CO., LTD.
    Inventors: Keon-yong SEOK, Jung-jin KIM, In-kwon PAIK, Dong-hoon LEE, Yong-deok CHANG
  • Patent number: 9191132
    Abstract: A broadcast retransmitting method, a broadcast retransmitting apparatus, a broadcast output apparatus, and a broadcast retransmitting system using the same are provided. The broadcast retransmitting method includes receiving a broadcast signal, detecting an available frequency band, retransmitting the received broadcast signal, and transmitting information regarding the broadcast signal.
    Type: Grant
    Filed: November 18, 2010
    Date of Patent: November 17, 2015
    Assignee: SAMSUNG ELECTRONICS CO., LTD.
    Inventors: Young-jin Lee, Yong-deok Chang, Jung-pil Yu, Chan-sub Park
  • Patent number: 9166826
    Abstract: A transport stream (TS) generating apparatus, a transmitting apparatus, a receiving apparatus, a digital broadcast system having the above, and a method thereof are provided. The digital broadcast system includes a transport stream (TS) generating apparatus which generates a multi transport stream (TS) by multiplexing a normal stream and a turbo stream having a variable coding rate, a transmitting apparatus which re-constructs the multi TS by processing the turbo stream, and transmits the re-constructed multi TS, and a receiving apparatus which receives the re-constructed multi TS, and decodes the normal stream and the turbo stream respectively, to recover normal data and turbo data. Accordingly, a multi TS, which includes normal stream and a turbo stream of various coding rates, can be transmitted and received efficiently.
    Type: Grant
    Filed: October 20, 2008
    Date of Patent: October 20, 2015
    Assignee: SAMSUNG ELECTRONICS CO., LTD.
    Inventors: Eui-jun Park, Yong-deok Chang, Yong-sik Kwon
  • Patent number: 9167284
    Abstract: A digital broadcasting transmission and/or reception system having an improved reception performance and a signal-processing method thereof. A digital broadcasting transmitter comprises a TRS encoder for to TRS-encode a MPEG-2 transmission stream having null data for inserting a Known data and a TRS parity at predetermined positions, randomizer to input and randomize data stream from the TRS encoder, a null packet exchanger to replace the null data for inserting the Known data to the known data, and an encoder for encoding a data streams to which the Known data is inserted. Accordingly, the present invention detects the known data from a signal received from a reception side and uses the detected known data for synchronization and equalization and further uses the TRS parity for correcting error of the received signal, so that the digital broadcasting reception performance can be improved at poor multipath channels.
    Type: Grant
    Filed: October 30, 2008
    Date of Patent: October 20, 2015
    Assignee: SAMSUNG ELECTRONICS CO., LTD.
    Inventors: Yong-deok Chang, Joon-soo Kim, Sung-woo Park
  • Patent number: 9106455
    Abstract: A transport stream (TS) generating apparatus, a transmitting apparatus, a receiving apparatus, a digital broadcast system having the above, and a method thereof are provided. The digital broadcast system includes a transport stream (TS) generating apparatus which generates a multi transport stream (TS) by multiplexing a normal stream and a turbo stream having a variable coding rate, a transmitting apparatus which re-constructs the multi TS by processing the turbo stream, and transmits the re-constructed multi TS, and a receiving apparatus which receives the re-constructed multi TS, and decodes the normal stream and the turbo stream respectively, to recover normal data and turbo data. Accordingly, a multi TS, which includes normal stream and a turbo stream of various coding rates, can be transmitted and received efficiently.
    Type: Grant
    Filed: March 1, 2013
    Date of Patent: August 11, 2015
    Assignee: SAMSUNG ELECTRONICS CO., LTD.
    Inventors: Eui-jun Park, Yong-deok Chang, Yong-sik Kwon
  • Patent number: 9100673
    Abstract: A digital broadcasting transmission and/or reception system having an improved reception performance and a signal-processing method thereof. A digital broadcasting transmitter comprises a TRS encoder for to TRS-encode a MPEG-2 transmission stream having null data for inserting a Known data and a TRS parity at predetermined positions, randomizer to input and randomize data stream from the TRS encoder, a null packet exchanger to replace the null data for inserting the Known data to the known data, and an encoder for encoding a data streams to which the Known data is inserted. Accordingly, the present invention detects the known data from a signal received from a reception side and uses the detected known data for synchronization and equalization and further uses the TRS parity for correcting error of the received signal, so that the digital broadcasting reception performance can be improved at poor multipath channels.
    Type: Grant
    Filed: October 30, 2008
    Date of Patent: August 4, 2015
    Assignee: SAMSUNG ELECTRONICS CO., LTD.
    Inventors: Yong-deok Chang, Joon-soo Kim, Sung-woo Park
  • Patent number: 9100051
    Abstract: Digital broadcasting transmission and reception devices and methods thereof are provided. The digital broadcasting transmission device includes a randomizer which randomizes a dual transport stream including a normal stream and a robust stream, a supplementary reference signal inserter which inserts a certain supplementary reference signal into a stuffing region included in the randomized dual transport stream, a Reed-Solomon (RS) encoder which adds a parity into a parity region included in the dual transport stream, a robust processor which configures a new dual transport stream by convolution-encoding the robust stream among the dual transport stream, an interleaver which interleaves the configured dual transport stream, a trellis encoder which trellis-encode the interleaved dual transport stream, and a modulator which transmits the trellis-encoded dual transport stream. Accordingly, a sub-channel can be provided in which the robust data and the supplementary reference signal will be transmitted.
    Type: Grant
    Filed: March 23, 2006
    Date of Patent: August 4, 2015
    Assignee: SAMSUNG ELECTRONICS CO., LTD.
    Inventors: Joon-soo Kim, Eui-jun Park, Yong-deok Chang, Hae-joo Jeong
  • Patent number: 8942294
    Abstract: A digital broadcasting transmission and/or reception system having an improved reception performance and a signal-processing method thereof. A digital broadcasting transmitter comprises a TRS encoder for to TRS-encode a MPEG-2 transmission stream having null data for inserting a Known data and a TRS parity at predetermined positions, randomizer to input and randomize data stream from the TRS encoder, a null packet exchanger to replace the null data for inserting the Known data to the known data, and an encoder for encoding a data streams to which the Known data is inserted. Accordingly, the present invention detects the known data from a signal received from a reception side and uses the detected known data for synchronization and equalization and further uses the TRS parity for correcting error of the received signal, so that the digital broadcasting reception performance can be improved at poor multipath channels.
    Type: Grant
    Filed: October 30, 2008
    Date of Patent: January 27, 2015
    Assignee: Samsung Electronics Co., Ltd.
    Inventors: Yong-deok Chang, Joon-soo Kim, Sung-woo Park
  • Patent number: 8885770
    Abstract: A digital broadcasting transmission/reception system having improved receiving performance and signal processing method thereof. A digital broadcasting transmitter according to the present invention includes a data pre-processor which processed robust data and generates robust data packet of predetermined format, a TS stream generator which combines robust data packet with a normal data packet to generate a TS stream of a predetermined format, a randomizer which randomizes the TS stream output from the TS stream generator, a convolution encoder which performs convolution encoding with respect to the robust data of the data output from the randomizer, and a RS encoder which performs RS encoding with respect to the data output from the convolution g encoder. Accordingly, digital broadcasting receiving performance can be improved in a poor multipath channel, while maintaining compatibility with existing transmission/reception system.
    Type: Grant
    Filed: October 30, 2008
    Date of Patent: November 11, 2014
    Assignee: Samsung Electronics Co., Ltd.
    Inventors: Eui-jun Park, Yong-deok Chang
  • Patent number: 8861645
    Abstract: Digital broadcasting transmission and reception devices and methods thereof are provided. The digital broadcasting transmission device includes a randomizer which randomizes a dual transport stream including a normal stream and a robust stream, a supplementary reference signal inserter which inserts a certain supplementary reference signal into a stuffing region included in the randomized dual transport stream, a Reed-Solomon (RS) encoder which adds a parity into a parity region included in the dual transport stream, a robust processor which configures a new dual transport stream by convolution-encoding the robust stream among the dual transport stream, an interleaver which interleaves the configured dual transport stream, a trellis encoder which trellis-encode the interleaved dual transport stream, and a modulator which transmits the trellis-encoded dual transport stream. Accordingly, a sub-channel can be provided in which the robust data and the supplementary reference signal will be transmitted.
    Type: Grant
    Filed: October 30, 2008
    Date of Patent: October 14, 2014
    Assignee: Samsung Electronics Co., Ltd.
    Inventors: Joon-soo Kim, Eui-jun Park, Yong-deok Chang, Hae-joo Jeong
  • Patent number: 8855238
    Abstract: A digital broadcasting transmission/reception system having improved receiving performance and signal processing method thereof. A digital broadcasting transmitter according to the present invention includes a data pre-processor which processed robust data and generates robust data packet of predetermined format, a TS stream generator which combines robust data packet with a normal data packet to generate a TS stream of a predetermined format, a randomizer which randomizes the TS stream output from the TS stream generator, a convolution encoder which performs convolution encoding with respect to the robust data of the data output from the randomizer, and a RS encoder which performs RS encoding with respect to the data output from the convolution g encoder. Accordingly, digital broadcasting receiving performance can be improved in a poor multipath channel, while maintaining compatibility with existing transmission/reception system.
    Type: Grant
    Filed: October 30, 2008
    Date of Patent: October 7, 2014
    Assignee: Samsung Electronics Co., Ltd.
    Inventors: Eui-jun Park, Yong-deok Chang
  • Patent number: 8855237
    Abstract: A digital broadcasting transmission/reception system having improved receiving performance and signal processing method thereof. A digital broadcasting transmitter according to the present invention includes a data pre-processor which processed robust data and generates robust data packet of predetermined format, a TS stream generator which combines robust data packet with a normal data packet to generate a TS stream of a predetermined format, a randomizer which randomizes the TS stream output from the TS stream generator, a convolution encoder which performs convolution encoding with respect to the robust data of the data output from the randomizer, and a RS encoder which performs RS encoding with respect to the data output from the convolution g encoder. Accordingly, digital broadcasting receiving performance can be improved in a poor multipath channel, while maintaining compatibility with existing transmission/reception system.
    Type: Grant
    Filed: October 30, 2008
    Date of Patent: October 7, 2014
    Assignee: Samsung Electronics Co., Ltd.
    Inventors: Eui-jun Park, Yong-deok Chang
  • Patent number: 8855239
    Abstract: A digital broadcasting transmission/reception system having improved receiving performance and signal processing method thereof. A digital broadcasting transmitter according to the present invention includes a data pre-processor which processed robust data and generates robust data packet of predetermined format, a TS stream generator which combines robust data packet with a normal data packet to generate a TS stream of a predetermined format, a randomizer which randomizes the TS stream output from the TS stream generator, a convolution encoder which performs convolution encoding with respect to the robust data of the data output from the randomizer, and a RS encoder which performs RS encoding with respect to the data output from the convolution g encoder. Accordingly, digital broadcasting receiving performance can be improved in a poor multipath channel, while maintaining compatibility with existing transmission/reception system.
    Type: Grant
    Filed: October 30, 2008
    Date of Patent: October 7, 2014
    Assignee: Samsung Electronics Co., Ltd.
    Inventors: Eui-jun Park, Yong-deok Chang
  • Patent number: 8848832
    Abstract: A digital broadcasting transmission/reception system having improved receiving performance and signal processing method thereof. A digital broadcasting transmitter according to the present invention includes a data pre-processor which processed robust data and generates robust data packet of predetermined format, a TS stream generator which combines robust data packet with a normal data packet to generate a TS stream of a predetermined format, a randomizer which randomizes the TS stream output from the TS stream generator, a convolution encoder which performs convolution encoding with respect to the robust data of the data output from the randomizer, and a RS encoder which performs RS encoding with respect to the data output from the convolution g encoder. Accordingly, digital broadcasting receiving performance can be improved in a poor multipath channel, while maintaining compatibility with existing transmission/reception system.
    Type: Grant
    Filed: October 30, 2008
    Date of Patent: September 30, 2014
    Assignee: Samsung Electronics Co., Ltd.
    Inventors: Eui-jun Park, Yong-deok Chang
  • Patent number: 8761313
    Abstract: Disclosed is a digital broadcasting transmission/reception system having an improved reception performance and in a signal-processing method thereof. A digital broadcasting transmitter comprises a TS stream generator for inputting robust and normal packets having stuff bytes in predetermined positions and generating dual TS stream by inserting the robust packets between the normal packets; a randomizer for randomizing the dual TS stream; a stuff byte exchanger for replacing the stuff bytes of a randomized data streams from the randomizer to a predetermined known data; and an encoder for encoding a data streams to which the known data is inserted. Accordingly, the present invention detects the known data from a signal received from a reception side and uses the detected known data for synchronization and equalization, so that the digital broadcasting reception performance can be improved at poor multipath channels.
    Type: Grant
    Filed: October 29, 2008
    Date of Patent: June 24, 2014
    Assignee: Samsung Electronics Co., Ltd.
    Inventors: Yong-deok Chang, Hae-joo Jeong, Joon-soo Kim
  • Patent number: 8743996
    Abstract: Disclosed is a digital broadcasting transmission/reception system having an improved reception performance and in a signal-processing method thereof. A digital broadcasting transmitter comprises a TS stream generator for inputting robust and normal packets having stuff bytes in predetermined positions and generating dual TS stream by inserting the robust packets between the normal packets; a randomizer for randomizing the dual TS stream; a stuff byte exchanger for replacing the stuff bytes of a randomized data streams from the randomizer to a predetermined known data; and an encoder for encoding a data streams to which the known data is inserted. Accordingly, the present invention detects the known data from a signal received from a reception side and uses the detected known data for synchronization and equalization, so that the digital broadcasting reception performance can be improved at poor multipath channels.
    Type: Grant
    Filed: October 29, 2008
    Date of Patent: June 3, 2014
    Assignee: Samsung Electronics Co., Ltd.
    Inventors: Yong-deok Chang, Hae-joo Jeong, Joon-soo Kim
  • Patent number: 8737495
    Abstract: A digital broadcasting transmission and/or reception system having an improved reception performance and a signal-processing method thereof. A digital broadcasting transmitter comprises a randomizer to input and randomize data streams including a plurality of segments having at least one segment having one or more null packets, a null packet exchanger to create known data having a predetermined pattern and to replace the null packets at positions of the segments having the null packets of the randomized data streams to insert the known ‘data, an encoder to encode the data streams to which the known data is inserted, and a modulation/RF unit to modulate, RF-modulate, and transmit the encoded data streams.
    Type: Grant
    Filed: November 13, 2009
    Date of Patent: May 27, 2014
    Assignee: Samsung Electronics Co., Ltd.
    Inventors: Hae-jo Jeong, Yong-deok Chang, Eui-jun Park
  • Patent number: 8705640
    Abstract: A digital broadcast transmitter comprising: a randomizer to receive a data stream of which stuff bytes are inserted into a specified position and to randomize the received data stream; a stuff-byte exchange unit to generate known data having a predefined pattern and to insert the known data into the specified position of the data stream into which the stuff bytes are inserted; an encoder to encode the data stream output from the stuff-byte exchange unit for an error correction; and a modulator and RF converter to modulate the encoded data stream, RF-convert the modulated data stream and transmit the RF-converted data.
    Type: Grant
    Filed: November 3, 2008
    Date of Patent: April 22, 2014
    Assignee: Samsung Electronics Co., Ltd.
    Inventors: Hae-joo Jeong, Yong-deok Chang, Eui-jun Park, Sung-woo Park