Patents by Inventor Dae Young Jang

Dae Young Jang 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).

  • LPC RESIDUAL SIGNAL ENCODING/DECODING APPARATUS OF MODIFIED DISCRETE COSINE TRANSFORM (MDCT)-BASED UNIFIED VOICE/AUDIO ENCODING DEVICE
    Publication number: 20170337929
    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: August 4, 2017
    Publication date: November 23, 2017
    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
  • Apparatus for encoding and decoding of integrated speech and audio
    Patent number: 9818411
    Abstract: Provided is an encoding apparatus for integrally encoding and decoding a speech signal and a audio signal, and may include: an input signal analyzer to analyze a characteristic of an input signal; a stereo encoder to down mix the input signal to a mono signal when the input signal is a stereo signal, and to extract stereo sound image information; a frequency band expander to expand a frequency band of the input signal; a sampling rate converter to convert a sampling rate; a speech signal encoder to encode the input signal using a speech encoding module when the input signal is a speech characteristics signal; a audio signal encoder to encode the input signal using a audio encoding module when the input signal is a audio characteristic signal; and a bitstream generator to generate a bitstream.
    Type: Grant
    Filed: November 6, 2014
    Date of Patent: November 14, 2017
    Assignees: ELECTRONICS AND TELECOMMUNICATIONS RESEARCH INSTITUTE, KWANGWOON UNIVERSITY INDUSTRY-ACADEMIC COLLABORATION FOUNDATION
    Inventors: Tae Jin Lee, Seung Kwon Baek, Min Je Kim, Dae Young Jang, Jeongil Seo, Kyeongok Kang, Jin Woo Hong, Hochong Park, Young Cheol Park
  • Apparatus for encoding and decoding image using adaptive DCT coefficient scanning based on pixel similarity and method therefor
    Patent number: 9819942
    Abstract: The present invention discloses an encoding apparatus using a Discrete Cosine Transform (DCT) scanning, which includes a mode selection means for selecting an optimal mode for intra prediction; an intra prediction means for performing intra prediction onto video inputted based on the mode selected in the mode selection means; a DCT and quantization means for performing DCT and quantization onto residual coefficients of a block outputted from the intra prediction means; and an entropy encoding means for performing entropy encoding onto DCT coefficients acquired from the DCT and quantization by using a scanning mode decided based on pixel similarity of the residual coefficients.
    Type: Grant
    Filed: August 11, 2015
    Date of Patent: November 14, 2017
    Assignees: Electronics and Telecommunications Research Institute, Kwangwoon University Research Institute For Industry Cooperation, Industry-Academic Cooperation Group of Sejong University
    Inventors: Se-Yoon Jeong, Hae-Chul Choi, Jeong-Il Seo, Seung-Kwon Beack, In-Seon Jang, Jae-Gon Kim, Kyung-Ae Moon, Dae-Young Jang, Jin-Woo Hong, Jin-Woong Kim, Yung-Lyul Lee, Dong-Gyu Sim, Seoung-Jun Oh, Chang-Beom Ahn, Dae-Yeon Kim, Dong-Kyun Kim
  • ENCODER AND ENCODING METHOD FOR MULTI-CHANNEL SIGNAL, AND DECODER AND DECODING METHOD FOR MULTI-CHANNEL SIGNAL
    Publication number: 20170278521
    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: June 12, 2017
    Publication date: September 28, 2017
    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
  • Encoding apparatus and decoding apparatus for transforming between modified discrete cosine transform-based coder and different coder
    Patent number: 9773505
    Abstract: An encoding apparatus and a decoding apparatus in a transform between a Modified Discrete Cosine Transform (MDCT)-based coder and a different coder are provided. The encoding apparatus may encode additional information to restore an input signal encoded according to the MDCT-based coding scheme, when switching occurs between the MDCT-based coder and the different coder. Accordingly, an unnecessary bitstream may be prevented from being generated, and minimum additional information may be encoded.
    Type: Grant
    Filed: September 18, 2009
    Date of Patent: September 26, 2017
    Assignees: ELECTRONICS AND TELECOMMUNICATIONS RESEARCH INSTITUTE, KWANGWOON UNIVERSITY INDUSTRY-ACADEMIC COLLABORATION FOUNDATION
    Inventors: Seung Kwon Beack, Tae Jin Lee, Min Je Kim, Dae Young Jang, Kyeongok Kang, Jin Woo Hong, Ho Chong Park, Young-cheol Park
  • APPARATUS AND METHOD OF CREATING MULTILINGUAL AUDIO CONTENT BASED ON STEREO AUDIO SIGNAL
    Publication number: 20170251320
    Abstract: Provided is an apparatus and method for creating multilingual audio content based on a stereo audio signal. The method of creating multilingual audio content including adjusting an energy value of each of a plurality of sound sources provided in multiple languages, setting an initial azimuth angle of each of the sound sources based on a number of the sound sources, mixing each of the sound sources to generate a stereo signal based on the set initial azimuth angle, separating the sound sources to play the mixed sound sources using a sound source separating algorithm, and storing the mixed sound sources based on a sound quality of each of the separated sound sources.
    Type: Application
    Filed: January 6, 2017
    Publication date: August 31, 2017
    Inventors: Young Ho JEONG, Tae Jin LEE, Dae Young JANG, Jin Soo CHOI
  • METHOD AND APPARATUS FOR SYNTHESIZING SEPARATED SOUND SOURCE
    Publication number: 20170251319
    Abstract: Provided is a method and apparatus for synthesizing a separated sound source, the method including generating spatial information associated with a sound source included in a frame of a stereo audio signal, and synthesizing a separated frequency-domain sound source from the frame of the stereo audio signal based on the spatial information, wherein the spatial information includes a frequency-azimuth plane representing an energy distribution corresponding to a frequency and an azimuth of the frame of the stereo audio signal.
    Type: Application
    Filed: October 7, 2016
    Publication date: August 31, 2017
    Applicant: Electronics and Telecommunications Research Institute
    Inventors: Young Ho JEONG, Tae Jin LEE, Dae Young JANG, Jin Soo CHOI
  • Apparatus for encoding and decoding image using adaptive DCT coefficient scanning based on pixel similarity and method therefor
    Patent number: 9736484
    Abstract: The present invention discloses an encoding apparatus using a Discrete Cosine Transform (DCT) scanning, which includes a mode selection means for selecting an optimal mode for intra prediction; an intra prediction means for performing intra prediction onto video inputted based on the mode selected in the mode selection means; a DCT and quantization means for performing DCT and quantization onto residual coefficients of a block outputted from the intra prediction means; and an entropy encoding means for performing entropy encoding onto DCT coefficients acquired from the DCT and quantization by using a scanning mode decided based on pixel similarity of the residual coefficients.
    Type: Grant
    Filed: August 11, 2015
    Date of Patent: August 15, 2017
    Assignees: Electronics and Telecommunications Research Institute, Kwangwoon University Research Institute For Industry Cooperation, Industry-Academia Cooperation Group of Sejong University
    Inventors: Se-Yoon Jeong, Hae-Chul Choi, Jeong-Il Seo, Seung-Kwon Beack, In-Seon Jang, Jae-Gon Kim, Kyung-Ae Moon, Dae-Young Jang, Jin-Woo Hong, Jin-Woong Kim, Yung-Lyul Lee, Dong-Gyu Sim, Seoung-Jun Oh, Chang-Beom Ahn, Dae-Yeon Kim, Dong-Kyun Kim
  • LPC residual signal encoding/decoding apparatus of modified discrete cosine transform (MDCT)-based unified voice/audio encoding device
    Patent number: 9728198
    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: June 27, 2016
    Date of Patent: August 8, 2017
    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
  • Apparatus and method for encoding and decoding of integrated speech and audio utilizing a band expander with a spectral band replication to output the audio or speech to a frequency domain encoder or an LPC encoder
    Patent number: 9711159
    Abstract: An apparatus and a method for integrally encoding and decoding a speech signal and a audio signal. The encoding apparatus may include: an input signal analyzer to analyze a characteristic of an input signal; a first conversion encoder to convert the input signal to a frequency domain signal, and to encode the input signal when the input signal is a audio characteristic signal; a Linear Predictive Coding (LPC) encoder to perform LPC encoding of the input signal when the input signal is a speech characteristic signal; a frequency band expander with the spectral band replication (SBR) standard for expanding the frequency band of the input signal whose output is transmitted to either the first conversion encoder or the LPC encoder based on the input characteristic; and a bitstream generator to generate a bitstream using an output signal of the first conversion encoder and an output signal of the LPC encoder.
    Type: Grant
    Filed: January 26, 2015
    Date of Patent: July 18, 2017
    Assignees: ELECTRONICS AND TELECOMMUNICATIONS RESEARCH INSTITUTE, KWANGWOON UNIVERSITY INDUSTRY-ACADEMIC COLLABORATION FOUNDATION
    Inventors: Tae Jin Lee, Seung Kwon Baek, Min Je Kim, Dae Young Jang, Jeongil Seo, Kyeongok Kang, Jin Woo Hong, Hochong Park, Young Cheol Park
  • SOUND OBJECT CONTROL APPARATUS AND METHOD BASED ON ADDITIONAL IMAGE OBJECT
    Publication number: 20170188176
    Abstract: Disclosed is an apparatus and method for controlling a sound object based on an additional image object. A sound object controlling method includes displaying image objects synchronized with a plurality of sound objects, respectively, on a display; and controlling a sound object synchronized with an image object selected by a user from among the image objects displayed on the display. The sound object includes metadata that includes playback location information of the sound object on a specific space, sound level information of the sound object, and display location information of the image object synchronized with the sound object on the display.
    Type: Application
    Filed: November 18, 2016
    Publication date: June 29, 2017
    Applicant: Electronics and Telecommunications Research Institute
    Inventor: Dae Young JANG
  • Encoder and encoding method for multi-channel signal, and decoder and decoding method for multi-channel signal
    Patent number: 9679571
    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: April 10, 2014
    Date of Patent: June 13, 2017
    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
  • MULTICHANNEL AUDIO SIGNAL PROCESSING METHOD AND DEVICE
    Publication number: 20170134873
    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: Application
    Filed: July 1, 2015
    Publication date: May 11, 2017
    Applicant: Electronics & Telecommunications Research Institut e
    Inventors: Seung Kwon BEACK, Jeong Il SEO, Jong Mo SUNG, Tae Jin LEE, Dae Young JANG, Jin Woong KIM
  • UNIFIED SPEECH/AUDIO CODEC (USAC) PROCESSING WINDOWS SEQUENCE BASED MODE SWITCHING
    Publication number: 20160314798
    Abstract: A Unified Speech and Audio Codec (USAC) that may process a window sequence based on mode switching is provided. The USAC may perform encoding or decoding by overlapping between frames based on a folding point when mode switching occurs. The USAC may process different window sequences for each situation to perform encoding or decoding, and thereby may improve a coding efficiency.
    Type: Application
    Filed: July 1, 2016
    Publication date: October 27, 2016
    Applicants: ELECTRONICS AND TELECOMMUNICATIONS RESEARCH INSTITUTE, KWANGWOON UNIVERSITY INDUSTRY-ACADEMIC COLLABORATION FOUNDATION
    Inventors: Seungkwon BEACK, Tae Jin LEE, Min Je KIM, Kyeongok KANG, Dae Young JANG, Jeongil SEO, Jin Woo HONG, Chieteuk AHN, Ho Chong PARK, Young-cheol PARK
  • LPC RESIDUAL SIGNAL ENCODING/DECODING APPARATUS OF MODIFIED DISCRETE COSINE TRANSFORM (MDCT)-BASED UNIFIED VOICE/AUDIO ENCODING DEVICE
    Publication number: 20160307579
    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: June 27, 2016
    Publication date: October 20, 2016
    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
  • Method and apparatus for control of randering multiobject or multichannel audio signal using spatial cue
    Patent number: 9426596
    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: February 5, 2007
    Date of Patent: August 23, 2016
    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
  • BINAURAL RENDERING METHOD AND APPARATUS FOR DECODING MULTI CHANNEL AUDIO
    Publication number: 20160232902
    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 18, 2016
    Publication date: August 11, 2016
    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
  • Unified Speech/Audio Codec (USAC) processing windows sequence based mode switching
    Patent number: 9384748
    Abstract: A Unified Speech and Audio Codec (USAC) that may process a window sequence based on mode switching is provided. The USAC may perform encoding or decoding by overlapping between frames based on a folding point when mode switching occurs. The USAC may process different window sequences for each situation to perform encoding or decoding, and thereby may improve a coding efficiency.
    Type: Grant
    Filed: January 2, 2015
    Date of Patent: July 5, 2016
    Assignees: ELECTRONICS AND TELECOMMUNICATIONS RESEARCH INSTITUTE, KWANGWOON UNIVERSITY INDUSTRY-ACADEMIC COLLOBARATION FOUNDATION
    Inventors: Seungkwon Beack, Tae Jin Lee, Min Je Kim, Kyeongok Kang, Dae Young Jang, Jeongil Seo, Jin Woo Hong, Chieteuk Ahn, Ho Chong Park, Young-cheol Park
  • LPC residual signal encoding/decoding apparatus of modified discrete cosine transform (MDCT)-based unified voice/audio encoding device
    Patent number: 9378749
    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: November 14, 2014
    Date of Patent: June 28, 2016
    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
  • METHOD AND APPARATUS FOR GENERATING SIDE INFORMATION BITSTREAM OF MULTI-OBJECT AUDIO SIGNAL
    Publication number: 20160165375
    Abstract: Provided is a method and apparatus for generating a side information bitstream of a multi-object audio signal. The apparatus for generating a side information bitstream of a multi-object audio signal includes a spatial cue information input unit configured to receive spatial cue information generated in an encoder of the multi-object audio signal, a preset information input unit configured to receive preset information for the multi-object audio signal, and a side information bitstream generator configured to generate the side information bitstream based on the spatial cue information and the preset information. The side information bitstream includes a header region and a frame region, and the preset information is included in the frame region.
    Type: Application
    Filed: February 11, 2016
    Publication date: June 9, 2016
    Applicant: Electronics and Telecommunications Research Institute
    Inventors: Jeong-Il SEO, Seung-Kwon BEACK, Tae-Jin LEE, Yong-Ju LEE, Dae-Young JANG, Kyeongok KANG, Jin-Woo HONG, Jin-Woong KIM, Chieteuk AHN