Patents by Inventor Seung Kwon Beack

Seung Kwon Beack 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: 10783892
    Abstract: An audio encoding apparatus to encode an audio signal using lossless coding or lossy coding and an audio decoding apparatus to decode an encoded audio signal are disclosed. An audio encoding apparatus according to an exemplary embodiment may include an input signal type determination unit to determine a type of an input signal based on characteristics of the input signal, a residual signal generation unit to generate a residual signal based on an output signal from the input signal type determination unit, and a coding unit to perform lossless coding or lossy coding using the residual signal.
    Type: Grant
    Filed: May 6, 2019
    Date of Patent: September 22, 2020
    Assignees: Electronics and Telecommunications Research Institute, THE KOREA DEVELOPMENT BANK
    Inventors: Seung Kwon Beack, Tae Jin Lee, Jong Mo Sung, Kyeong Ok Kang, Keun Woo Choi
  • Patent number: 10783893
    Abstract: An encoder and an encoding method for a multi-channel signal, and a decoder and a decoding method for a multi-channel signal are disclosed. A multi-channel signal may be efficiently processed by consecutive downmixing or upmixing.
    Type: Grant
    Filed: September 10, 2018
    Date of Patent: September 22, 2020
    Assignee: Electronics and Telecommunications Research Institute
    Inventors: Seung Kwon Beack, Tae Jin Lee, Jong Mo Sung, Jeong Il Seo, Kyeong Ok Kang, Dae Young Jang, Jin Woong Kim
  • Publication number: 20200267488
    Abstract: The present research relates to controlling rendering of multi-object or multi-channel audio signals. The present research provides a method and apparatus for controlling rendering of multi-object or multi-channel audio signals based on spatial cues in a process of decoding the multi-object or multi-channel audio signals. To achieve the purpose, the method suggested in the research controls rendering in a spatial cue domain in the process of decoding the multi-object or multi-channel audio signals.
    Type: Application
    Filed: May 8, 2020
    Publication date: August 20, 2020
    Inventors: Seung-Kwon BEACK, Jeong-Il SEO, Dae-Young JANG, Tae-Jin LEE, Yong-Ju LEE, Jin-Woo HONG, Jin-Woong KIM
  • Publication number: 20200243099
    Abstract: Disclosed is an LPC residual signal encoding/decoding apparatus of an MDCT based unified voice and audio encoding device. The LPC residual signal encoding apparatus analyzes a property of an input signal, selects an encoding method of an LPC filtered signal, and encode the LPC residual signal based on one of a real filterbank, a complex filterbank, and an algebraic code excited linear prediction (ACELP).
    Type: Application
    Filed: April 10, 2020
    Publication date: July 30, 2020
    Applicant: ELECTRONICS AND TELECOMMUNICATIONS RESEARCH INSTITUTE
    Inventors: Seung Kwon BEACK, Tae Jin LEE, Min Je KIM, Kyeongok KANG, Dae Young JANG, Jin Woo HONG, Jeongil SEO, Chieteuk AHN, Hochong PARK, Young-Cheol PARK
  • Publication number: 20200234718
    Abstract: Disclosed is a binaural rendering method and apparatus for decoding a multichannel audio signal. The binaural rendering method may include: extracting an early reflection component and a late reverberation component from a binaural filter; generating a stereo audio signal by performing binaural rendering of a multichannel audio signal base on the early reflection component; and applying the late reverberation component to the generated stereo audio signal.
    Type: Application
    Filed: April 6, 2020
    Publication date: July 23, 2020
    Applicant: Electronics and Telecommunications Research Institute
    Inventors: Yong Ju LEE, Jeong Il SEO, Jae Hyoun YOO, Seung Kwon BEACK, Jong Mo SUNG, Tae Jin LEE, Kyeong Ok KANG, Jin Woong KIM, Tae Jin PARK, Dae Young JANG, Keun Woo CHOI
  • Publication number: 20200211576
    Abstract: A loss function determining method and a loss function determining system for an audio signal are disclosed. A method of determining a loss function capable of being defined when a neural network is used to reconstruct an audio signal is provided.
    Type: Application
    Filed: December 27, 2019
    Publication date: July 2, 2020
    Applicant: Electronics and Telecommunications Research Institute
    Inventors: Seung Kwon BEACK, Woo-taek LIM, Tae Jin LEE
  • Patent number: 10701503
    Abstract: Disclosed is an apparatus and method for processing a multichannel audio signal. A multichannel audio signal processing method may include: generating an N-channel audio signal of N channels by down-mixing an M-channel audio signal of M channels; and generating a stereo audio signal by performing binaural rendering of the N-channel audio signal.
    Type: Grant
    Filed: September 10, 2018
    Date of Patent: June 30, 2020
    Assignee: Electronics and Telecommunications Research Institute
    Inventors: Yong Ju Lee, Jeong Il Seo, Seung Kwon Beack, Kyeong Ok Kang, Jin Woong Kim, Jae Hyoun Yoo
  • Publication number: 20200176002
    Abstract: An encoder and an encoding method for a multi-channel signal, and a decoder and a decoding method for a multi-channel signal are disclosed. A multi-channel signal may be efficiently processed by consecutive downmixing or upmixing.
    Type: Application
    Filed: February 10, 2020
    Publication date: June 4, 2020
    Applicant: Electronics and Telecommunications Research Institute
    Inventors: Seung Kwon BEACK, Tae Jin LEE, Jong Mo SUNG, Jeong Il SEO, Kyeong Ok KANG, Dae Young JANG, Jin Woong KIM
  • Publication number: 20200154224
    Abstract: An audio encoding apparatus and method that encodes hybrid contents including an object sound, a background sound, and metadata, and an audio decoding apparatus and method that decodes the encoded hybrid contents are provided. The audio encoding apparatus may include a mixing unit to generate an intermediate channel signal by mixing a background sound and an object sound, a matrix information encoding unit to encode matrix information used for the mixing, an audio encoding unit to encode the intermediate channel signal, and a metadata encoding unit to encode metadata including control information of the object sound.
    Type: Application
    Filed: January 20, 2020
    Publication date: May 14, 2020
    Applicant: Electronics and Telecommunications Research Institute
    Inventors: Seung Kwon BEACK, Tae Jin LEE, Jong Mo SUNG, Kyeong Ok KANG, Jeong Il SEO, Dae Young JANG, Yong Ju LEE, Jin Woong KIM
  • Patent number: 10652685
    Abstract: The present research relates to controlling rendering of multi-object or multi-channel audio signals. The present research provides a method and apparatus for controlling rendering of multi-object or multi-channel audio signals based on spatial cues in a process of decoding the multi-object or multi-channel audio signals. To achieve the purpose, the method suggested in the research controls rendering in a spatial cue domain in the process of decoding the multi-object or multi-channel audio signals.
    Type: Grant
    Filed: March 18, 2019
    Date of Patent: May 12, 2020
    Assignee: ELECTRONICS AND TELECOMMUNICATIONS RESEARCH INSTITUTE
    Inventors: Seung-Kwon Beack, Jeong-Il Seo, Dae-Young Jang, Tae-Jin Lee, Yong-Ju Lee, Jin-Woo Hong, Jin-Woong Kim
  • Publication number: 20200143816
    Abstract: An encoding method for a multi-channel audio signal, an encoding apparatus for performing the encoding method, and a decoding method for a multi-channel audio signal and a decoding apparatus for performing the decoding method are disclosed. A method and apparatus of bypassing an MPEG Surround (MPS) standard operation and using an arbitrary tree when a number of audio signals of N channels exceeds a channel number defined in an MPS standard, is disclosed.
    Type: Application
    Filed: January 6, 2020
    Publication date: May 7, 2020
    Applicant: Electronics and Telecommunications Research Institute
    Inventors: Seung Kwon BEACK, Jeong Il SEO, Jong Mo SUNG, Tae Jin LEE, Jin Soo CHOI
  • Patent number: 10645514
    Abstract: Disclosed is an apparatus and method for processing a multichannel audio signal. A multichannel audio signal processing method may include: generating an N-channel audio signal of N channels by down-mixing an M-channel audio signal of M channels; and generating a stereo audio signal by performing binaural rendering of the N-channel audio signal.
    Type: Grant
    Filed: September 10, 2018
    Date of Patent: May 5, 2020
    Assignee: Electronics and Telecommunications Research Institute
    Inventors: Yong Ju Lee, Jeong Il Seo, Seung Kwon Beack, Kyeong Ok Kang, Jin Woong Kim, Jae Hyoun Yoo
  • Patent number: 10645515
    Abstract: Disclosed are a multi-channel audio signal processing method and a multi-channel audio signal processing apparatus. The multi-channel audio signal processing method may generate N channel output signals from N/2 channel downmix signals based on an N-N/2-N structure.
    Type: Grant
    Filed: March 18, 2019
    Date of Patent: May 5, 2020
    Assignee: Electronics and Telecommunications Research Institute
    Inventors: Seung Kwon Beack, Jeong Il Seo, Jong Mo Sung, Tae Jin Lee, Dae Young Jang, Jin Woong Kim
  • Patent number: 10638243
    Abstract: Provided are an encoding method of a multichannel signal, an encoding apparatus to perform the encoding method, a multichannel signal processing method, and a decoding apparatus to perform the decoding method. The decoding method may include identifying an N/2-channel downmix signal derived from an N-channel input signal; and generating an N-channel output signal from the identified N/2-channel downmix signal using a plurality of one-to-two (OTT) boxes. If a low frequency effect (LFE) channel is absent in the output signal, the number of OTT boxes may be equal to N/2 where N/2 denotes the number of channels of the downmix signal.
    Type: Grant
    Filed: March 1, 2019
    Date of Patent: April 28, 2020
    Assignee: Electronics and Telecommunications Research Institute
    Inventors: Seung Kwon Beack, Jeong Il Seo, Jong Mo Sung, Tae Jin Lee, Dae Young Jang, Jin Soo Choi
  • Patent number: 10621998
    Abstract: Disclosed is an LPC residual signal encoding/decoding apparatus of an MDCT based unified voice and audio encoding device. The LPC residual signal encoding apparatus analyzes a property of an input signal, selects an encoding method of an LPC filtered signal, and encode the LPC residual signal based on one of a real filterbank, a complex filterbank, and an algebraic code excited linear prediction (ACELP).
    Type: Grant
    Filed: August 4, 2017
    Date of Patent: April 14, 2020
    Assignee: Electronics and Telecommunications Research Institute
    Inventors: Seung Kwon Beack, Tae Jin Lee, Min Je Kim, Kyeongok Kang, Dae Young Jang, Jin Woo Hong, Jeongil Seo, Chieteuk Ahn, Hochong Park, Young-cheol Park
  • Publication number: 20200111501
    Abstract: Disclosed are an audio signal encoding method and device, and an audio signal decoding method and device. The encoding method includes transforming an original test signal of a time domain being an audio signal into a frequency domain, binarizing a coefficient of the original test signal of the frequency domain, performing an encoding layer feedforward using the binarized coefficient and a training model parameter derived through a training process, and performing an entropy encoding based on a result of performing the encoding layer feedforward.
    Type: Application
    Filed: August 15, 2019
    Publication date: April 9, 2020
    Applicants: Electronics and Telecommunications Research Institute, The Trustees of Indiana University
    Inventors: Jongmo SUNG, Seung Kwon BEACK, Mi Suk LEE, Tae Jin LEE, Minje KIM
  • Publication number: 20200112811
    Abstract: Disclosed is an apparatus and method for processing a multichannel audio signal. A multichannel audio signal processing method may include: generating an N-channel audio signal of N channels by down-mixing an M-channel audio signal of M channels; and generating a stereo audio signal by performing binaural rendering of the N-channel audio signal.
    Type: Application
    Filed: December 4, 2019
    Publication date: April 9, 2020
    Applicant: Electronics and Telecommunications Research Institute
    Inventors: Yong Ju Lee, Jeong Il Seo, Seung Kwon Beack, Kyeong Ok Kang, Jin Woong Kim, Jae Hyoun Yoo
  • Patent number: 10614820
    Abstract: Disclosed is a binaural rendering method and apparatus for decoding a multichannel audio signal. The binaural rendering method may include: extracting an early reflection component and a late reverberation component from a binaural filter; generating a stereo audio signal by performing binaural rendering of a multichannel audio signal base on the early reflection component; and applying the late reverberation component to the generated stereo audio signal.
    Type: Grant
    Filed: January 10, 2019
    Date of Patent: April 7, 2020
    Assignee: Electronics and Telecommunications Research Institute
    Inventors: Yong Ju Lee, Jeong Il Seo, Jae Hyoun Yoo, Seung Kwon Beack, Jong Mo Sung, Tae Jin Lee, Kyeong Ok Kang, Jin Woong Kim, Tae Jin Park, Dae Young Jang, Keun Woo Choi
  • Publication number: 20200107023
    Abstract: Disclosed herein is a context-adaptive entropy model for end-to-end optimized image compression. The entropy model exploits two types of contexts. The two types of contexts are a bit-consuming context and a bit-free context, respectively, and these contexts are classified depending on the corresponding context requires the allocation of additional bits. Based on these contexts, the entropy model may more accurately estimate the distribution of each latent representation using a more generalized form of entropy models, thus improving compression performance.
    Type: Application
    Filed: September 27, 2019
    Publication date: April 2, 2020
    Applicant: Electronics and Telecommunications Research Institute
    Inventors: Joo-Young LEE, Seung-Hyun CHO, Seung-Kwon BEACK, Hyunsuk KO, Youn-Hee KIM, Jong-Ho KIM, Jin-Wuk SEOK, Woong LIM, Se-Yoon JEONG, Hui-Yong KIM, Jin-Soo CHOI
  • Patent number: 10582324
    Abstract: Disclosed is an apparatus and method for processing a multichannel audio signal. A multichannel audio signal processing method may include: generating an N-channel audio signal of N channels by down-mixing an M-channel audio signal of M channels; and generating a stereo audio signal by performing binaural rendering of the N-channel audio signal.
    Type: Grant
    Filed: September 10, 2018
    Date of Patent: March 3, 2020
    Assignee: Electronics and Telecommunications Research Institute
    Inventors: Yong Ju Lee, Jeong Il Seo, Seung Kwon Beack, Kyeong Ok Kang, Jin Woong Kim, Jae Hyoun Yoo