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).

  • RESIDUAL CODING METHOD OF LINEAR PREDICTION CODING COEFFICIENT BASED ON COLLABORATIVE QUANTIZATION, AND COMPUTING DEVICE FOR PERFORMING THE METHOD
    Publication number: 20210142812
    Abstract: Disclosed are a method for coding a residual signal of LPC coefficients based on collaborative quantization and a computing device for performing the method. The residual signal coding method includes: generating encoded LPC coefficients and LPC residual signals by performing LPC analysis and quantization on an input speech; Determining a predicted LPC residual signal by applying the LPC residual signal to cross module residual learning; Performing LPC synthesis using the coded LPC coefficients and the predicted LPC residual signal; It may include the step of determining an output speech that is a synthesized output according to a result of performing the LPC synthesis.
    Type: Application
    Filed: November 13, 2020
    Publication date: May 13, 2021
    Applicants: Electronics and Telecommunications Research Institute, The Trustees of Indiana University
    Inventors: Minje KIM, Kai ZHEN, Mi Suk LEE, Seung Kwon BEACK, Jongmo SUNG, Tae Jin LEE, Jin Soo CHOI
  • Binaural rendering method and apparatus for decoding multi channel audio
    Patent number: 10950248
    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: April 6, 2020
    Date of Patent: March 16, 2021
    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
  • ENCODING METHOD AND DECODING METHOD FOR AUDIO SIGNAL USING DYNAMIC MODEL PARAMETER, AUDIO ENCODING APPARATUS AND AUDIO DECODING APPARATUS
    Publication number: 20210074306
    Abstract: Provided are an audio encoding method, an audio decoding method, an audio encoding apparatus, and an audio decoding apparatus using dynamic model parameters. The audio encoding method using dynamic model parameters may use dynamic model parameters corresponding to each of the levels of the encoding network when reducing the dimension of an audio signal in the encoding network. In addition, the audio decoding method using the dynamic model parameter may use a dynamic model parameter corresponding to each of the levels of the decoding network when extending the dimension of an audio signal in an encoding network.
    Type: Application
    Filed: September 10, 2020
    Publication date: March 11, 2021
    Applicant: Electronics and Telecommunications Research Institute
    Inventors: Jongmo SUNG, Seung Kwon BEACK, Mi Suk LEE, Tae Jin LEE, Woo-taek LIM, Jin Soo CHOI
  • METHOD OF ENCODING HIGH BAND OF AUDIO AND METHOD OF DECODING HIGH BAND OF AUDIO, AND ENCODER AND DECODER FOR PERFORMING THE METHODS
    Publication number: 20210005209
    Abstract: Disclosed are a method of encoding a high band of an audio, a method of decoding a high band of an audio, and an encoder and a decoder for performing the methods. The method of decoding a high band of an audio, the method performed by a decoder, includes identifying a parameter extracted through a first neural network, identifying side information extracted through a second neural network, and restoring a high band of an audio by applying the parameter and the side information to a third neural network.
    Type: Application
    Filed: March 10, 2020
    Publication date: January 7, 2021
    Applicants: Electronics and Telecommunications Research Institute, Kwangwoon University Industry-Academic Collaboration Foundation
    Inventors: Seung Kwon BEACK, Jongmo SUNG, Mi Suk LEE, Tae Jin LEE, Hochong PARK
  • METHOD OF PROCESSING RESIDUAL SIGNAL FOR AUDIO CODING, AND AUDIO PROCESSING APPARATUS
    Publication number: 20210005208
    Abstract: Disclosed is a method of processing a residual signal for audio coding and an audio coding apparatus. The method learns a feature map of a reference signal through a residual signal learning engine including a convolutional layer and a neural network and performs learning based on a result obtained by mapping a node of an output layer of the neural network and a quantization level of index of the residual signal.
    Type: Application
    Filed: November 18, 2019
    Publication date: January 7, 2021
    Applicant: Electronics and Telecommunications Research Institute
    Inventors: Seung Kwon Beack, Jongmo Sung, Mi Suk Lee, Tae Jin Lee, Hui Yong Kim
  • Block-based audio encoding/decoding device and method therefor
    Patent number: 10839819
    Abstract: Provided is an apparatus and method for encoding/decoding audio based on a block. A method of encoding an audio signal may include dividing each of frame of input signal that constitute an audio signal into a plurality of subframes; transforming the subframes to a frequency domain; determining a two-dimensional (2D) intra block using the subframes transformed to the frequency domain; and encoding the 2D intra block. The 2D intra block may be a block that two-dimensionally displays frequency coefficients of the subframes transformed to the frequency domain using a time and a frequency.
    Type: Grant
    Filed: March 21, 2017
    Date of Patent: November 17, 2020
    Assignee: Electronics and Telecommunications Research Institute
    Inventors: Seung Kwon Beack, Tae Jin Lee, Jongmo Sung, Mi Suk Lee, Dae Young Jang, Jin Soo Choi
  • AUDIO CODING METHOD BASED ON SPECTRAL RECOVERY SCHEME
    Publication number: 20200349959
    Abstract: An inventive concept relates to an audio coding method to which CNN-based frequency spectrum recovery is applied. An inventive concept transmits a part of frequency spectral coefficients generated in transform coding to a decoder and the decoder recovers the frequency spectral coefficient not transmitted. Furthermore, the signs of frequency spectral coefficient are transmitted from an encoder to the decoder depending on a sign transmission rule.
    Type: Application
    Filed: April 8, 2020
    Publication date: November 5, 2020
    Applicants: Electronics and Telecommunications Research Institute, Kwangwoon University Industry-Academic Collaboration Foundation
    Inventors: Hochong PARK, Seung Kwon BEACK, Jongmo SUNG, Seong-Hyeon SHIN, Mi Suk LEE, Tae Jin LEE, Jin Soo CHOI
  • Encoder and encoding method for multi-channel signal, and decoder and decoding method for multi-channel signal
    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
  • Audio encoding apparatus and method, and audio decoding apparatus and method
    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
  • METHOD AND APPARATUS FOR CONTROL OF RANDERING MULTIOBJECT OR MULTICHANNEL AUDIO SIGNAL USING SPATIAL CUE
    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
  • LPC RESIDUAL SIGNAL ENCODING/DECODING APPARATUS OF MODIFIED DISCRETE COSINE TRANSFORM (MDCT)-BASED UNIFIED VOICE/AUDIO ENCODING DEVICE
    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
  • BINAURAL RENDERING METHOD AND APPARATUS FOR DECODING MULTI CHANNEL AUDIO
    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
  • METHOD AND DEVICE FOR DETERMINING LOSS FUNCTION FOR AUDIO SIGNAL
    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
  • Apparatus and method for processing multi-channel audio signal
    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
  • ENCODER AND ENCODING METHOD FOR MULTI-CHANNEL SIGNAL, AND DECODER AND DECODING METHOD FOR MULTI-CHANNEL SIGNAL
    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
  • AUDIO ENCODING APPARATUS AND METHOD, AUDIO DECODING APPARATUS AND METHOD, AND AUDIO REPRODUCING APPARATUS
    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
  • Method and apparatus for control of randering multiobject or multichannel audio signal using spatial cue
    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
  • ENCODING METHOD AND ENCODER FOR MULTI-CHANNEL AUDIO SIGNAL, AND DECODING METHOD AND DECODER FOR MULTI-CHANNEL AUDIO SIGNAL
    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
  • Apparatus and method for processing multi-channel audio signal
    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
  • Multichannel audio signal processing method and device
    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