Patents Assigned to Kwangwoon University Industry-Academic Collaboration Foundation
  • Unified speech/audio codec (USAC) processing windows sequence based mode switching
    Patent number: 10002619
    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: July 1, 2016
    Date of Patent: June 19, 2018
    Assignees: 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
  • Moving object detection device and object detection method
    Patent number: 9984297
    Abstract: An object detection device may include: a candidate object selection unit suitable for selecting candidate objects from a stereo image transmitted from moving cameras; a global motion estimation unit suitable for estimating global motions representing movement of the moving cameras from the stereo image; and an object determination unit suitable for detecting a moving object from the stereo image based on the candidate objects and the global motions.
    Type: Grant
    Filed: December 4, 2015
    Date of Patent: May 29, 2018
    Assignees: SK Hynix Inc., KWANGWOON UNIVERSITY INDUSTRY ACADEMIC COLLABORATION FOUNDATION
    Inventors: Ji Sang Yoo, Gyu Cheol Lee
  • Method for detecting change in load during wireless charging and wireless power transmitter thereof
    Patent number: 9973024
    Abstract: A wireless power transmitter and a method for detecting a change in load during wireless charging in the wireless power transmitter is provided. The wireless power transmitter includes a power transmission unit configured to transmit power to a wireless power receiver, a current detection unit configured to measure a voltage value corresponding to a current that is output to the power transmission unit while the power is transmitted from the power transmission unit, and a controller configured to adjust the power transmitted by the power transmission unit based on the measured voltage value.
    Type: Grant
    Filed: March 13, 2015
    Date of Patent: May 15, 2018
    Assignees: Samsung Electronics Co., Ltd, Kwangwoon University Industry-Academic Collaboration Foundation
    Inventors: Sung-Ku Yeo, Yun-Seong Eo, Kyu-Sub Kwak, Sung-Bum Park, Hyun-Jun Ahn
  • ENCODING APPARATUS AND DECODING APPARATUS FOR TRANSFORMING BETWEEN MODIFIED DISCRETE COSINE TRANSFORM-BASED CODER AND DIFFERENT CODER
    Publication number: 20180130478
    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: Application
    Filed: September 25, 2017
    Publication date: May 10, 2018
    Applicants: 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
  • System and Method of Passively Tracking Moving Object Within Structure
    Publication number: 20180120412
    Abstract: Disclosed is system and method of passively tracking a moving object inside a structure. The method includes: forming a LOSL by a plurality of transmitting modules and a plurality of receiving modules; gathering, by the receiving modules, values changed in received signal strengths (RSS) and transmitting the gathered values to the controller by the plurality of receiving modules, the RSS values being changed when the LOSL is blocked by a movement of the moving object; recording, by the controller, sequences and time stamps of the blocked LOSL by receiving the changed RSS values from the receiving modules; estimating, by the controller, a cross point at which the moving object crosses the LOSL based on the recorded sequences and time stamps of the blocked LOSL; and tracking, by the controller, a moving path of the moving object based on information of the estimated cross point.
    Type: Application
    Filed: November 22, 2016
    Publication date: May 3, 2018
    Applicant: Kwangwoon University Industry-Academic Collaboration Foundation
    Inventor: Youngok Kim
  • Motion picture encoding apparatus and method thereof
    Patent number: 9961344
    Abstract: Provided is a video encoding apparatus, including a signal separator to separate a differential image block into a first domain and a second domain, based on a boundary line included in the differential image block, the differential image block indicating a difference between an original image and a prediction image with respect to the original image, a transform encoder to perform a transform encoding with respect to the first domain using a discrete cosine transform (DCT), a quantization unit to quantize an output of the transform encoding unit in a frequency domain, a space domain quantization unit to quantize the second domain in a space domain, and an entropy encoder to perform an entropy encoding using outputs of the quantization unit and the space domain quantization unit.
    Type: Grant
    Filed: July 26, 2016
    Date of Patent: May 1, 2018
    Assignees: Electronics and Telecommunications Research Institute, Kwangwoon University Industry-Academic Collaboration Foundation, University-Industry Cooperation Group of Kyung Hee University, Korea Advanced Institute of Science and Technology
    Inventors: Sung-Chang Lim, Ha Hyun Lee, Hui Yong Kim, Se Yoon Jeong, Suk Hee Cho, Hae Chul Choi, Jong Ho Kim, Jin Ho Lee, Jin Soo Choi, Jin Woo Hong, Dong Hyu Sim, Seoung Jun Oh, Gwang Hoon Park, Mun Churl Kim, Neung Joo Hwang, Sea Nae Park
  • Image encoder and decoder using unidirectional prediction
    Patent number: 9942554
    Abstract: The present invention relates to an image encoding and decoding technique, and more particularly, to an image encoder and decoder using unidirectional prediction. The image encoder includes a dividing unit to divide a macro block into a plurality of sub-blocks, a unidirectional application determining unit to determine whether an identical prediction mode is applied to each of the plurality of sub-blocks, and a prediction mode determining unit to determine a prediction mode with respect to each of the plurality of sub-blocks based on a determined result of the unidirectional application determining unit.
    Type: Grant
    Filed: June 24, 2016
    Date of Patent: April 10, 2018
    Assignees: ELECTRONICS AND TELECOMMUNICATIONS RESEARCH INSTITUTE, KWANGWOON UNIVERSITY INDUSTRY-ACADEMIC COLLABORATION FOUNDATION, UNIVERSITY-INDUSTRY COOPERATION GROUP OF KYUNG HEE UNIVERSITY
    Inventors: Hae Chul Choi, Se Yoon Jeong, Sung-Chang Lim, Jin Soo Choi, Jin Woo Hong, Dong Gyu Sim, Seoung-Jun Oh, Chang-Beom Ahn, Gwang Hoon Park, Seung Ryong Kook, Sea-Nae Park, Kwang-Su Jeong
  • Method and apparatus for encoding/decoding video by using padding in video codec
    Patent number: 9936204
    Abstract: The present invention relates to a method and apparatus for encoding/decoding a video, the method being applied with a method of using video padding and removing the padded area after decoding in order to effectively encode the video in a video compression technology for a high-definition security camera.
    Type: Grant
    Filed: March 29, 2017
    Date of Patent: April 3, 2018
    Assignee: Kwangwoon University Industry-Academic Collaboration Foundation
    Inventors: Donggyu Sim, Seanae Park
  • APPARATUS FOR ENCODING AND DECODING OF INTEGRATED SPEECH AND AUDIO
    Publication number: 20180068667
    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: Application
    Filed: November 13, 2017
    Publication date: March 8, 2018
    Applicants: 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
  • Method and device for encoding and decoding audio signal
    Patent number: 9881624
    Abstract: A method is provided. The method includes obtaining a low-band spectrum of an audio signal in which a low-band signal is frequency transformed; obtaining phase information of a high-band spectrum of the audio signal based on the low-band spectrum; and outputting a bitstream that comprises the phase information of the high-band spectrum.
    Type: Grant
    Filed: May 15, 2013
    Date of Patent: January 30, 2018
    Assignees: SAMSUNG ELECTRONICS CO., LTD., KWANGWOON UNIVERSITY INDUSTRY-ACADEMIC COLLABORATION FOUNDATION
    Inventors: Ki-hyun Choo, Ho-chong Park, Eun-mi Oh
  • APPARATUS AND METHOD FOR ENCODING AND DECODING OF INTEGRATED SPEECH AND AUDIO
    Publication number: 20170345435
    Abstract: Provided are 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; 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: Application
    Filed: June 9, 2017
    Publication date: November 30, 2017
    Applicants: 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 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 BY SKIP ENCODING AND METHOD FOR SAME
    Publication number: 20170310964
    Abstract: The present invention relates to an apparatus and method for encoding and decoding an image by skip encoding. The image-encoding method by skip encoding, which performs intra-prediction, comprises: performing a filtering operation on the signal which is reconstructed prior to an encoding object signal in an encoding object image; using the filtered reconstructed signal to generate a prediction signal for the encoding object signal; setting the generated prediction signal as a reconstruction signal for the encoding object signal; and not encoding the residual signal which can be generated on the basis of the difference between the encoding object signal and the prediction signal, thereby performing skip encoding on the encoding object signal.
    Type: Application
    Filed: July 13, 2017
    Publication date: October 26, 2017
    Applicants: Electronics and Telecommunications Research Institute, Kwangwoon University Industry-Academic Collaboration Foundation, University-Industry Cooperation Group of Kyung Hee University
    Inventors: Sung Chang LIM, Ha Hyun LEE, Se Yoon JEONG, Hui Yong KIM, Suk Hee CHO, Jong Ho KIM, Jin Ho LEE, Jin Soo CHOI, Jin Woong KIM, Chie Teuk AHN, Dong Gyu SIM, Seoung Jun OH, Gwang Hoon PARK, Sea Nae PARK, Chan Woong JEON
  • 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
  • Spatial image projection apparatus
    Patent number: 9749610
    Abstract: A spatial image projection apparatus including a receiver configured to receive an image signal; a display unit configured to display an image acquired by processing the image signal; a projection unit configured to project a spatial image to a prescribed space by reflecting light corresponding to the image displayed on the display unit. Further, the projection unit includes a plate having a first surface facing the display unit and a second surface opposite to the first surface; and a protrusion arranged on the first surface or the second surface of the plate. In addition, the protrusion includes first and second slopes tilted at about 45 degrees relative to the surface of the plate, and an angle between the first and second slopes is about 90 degrees.
    Type: Grant
    Filed: October 6, 2015
    Date of Patent: August 29, 2017
    Assignees: LG ELECTRONICS INC., KWANGWOON UNIVERSITY INDUSTRY-ACADEMIC COLLABORATION FOUNDATION
    Inventors: Sungchul Shin, Eunsoo Kim, Seungcheol Kim
  • Apparatus for encoding and decoding image by skip encoding and method for same
    Patent number: 9743082
    Abstract: The present invention relates to an apparatus and method for encoding and decoding an image by skip encoding. The image-encoding method by skip encoding, which performs intra-prediction, comprises: performing a filtering operation on the signal which is reconstructed prior to an encoding object signal in an encoding object image; using the filtered reconstructed signal to generate a prediction signal for the encoding object signal; setting the generated prediction signal as a reconstruction signal for the encoding object signal; and not encoding the residual signal which can be generated on the basis of the difference between the encoding object signal and the prediction signal, thereby performing skip encoding on the encoding object signal.
    Type: Grant
    Filed: March 10, 2015
    Date of Patent: August 22, 2017
    Assignees: Electronics and Telecommunications Research Institute, Kwangwoon University Industry-Academic Collaboration Foundation, University-Industry Cooperation Group Of Kyung Hee University
    Inventors: Sung Chang Lim, Ha Hyun Lee, Se Yoon Jeong, Hui Yong Kim, Suk Hee Cho, Jong Ho Kim, Jin Ho Lee, Jin Soo Choi, Jin Woong Kim, Chie Teuk Ahn, Dong Gyu Sim, Seoung Jun Oh, Gwang Hoon Park, Sea Nae Park, Chan Woong Jeon
  • METHOD FOR CODING AND DECODING SCALABLE VIDEO AND APPARATUS USING SAME
    Publication number: 20170238004
    Abstract: The present invention relates to a method and an apparatus for interlayer prediction, and the method for interlayer prediction, according to the present invention, comprises the steps of: deciding whether to apply an interlayer prediction to an enhancement layer; and performing a prediction on a current block of the enhancement layer based on reference information that is generalized and generated from a reference picture, which is decoded, of a reference layer, when the interlayer prediction is applied, wherein the reference layer information can be encoding information of a reference block, which corresponds to a current block of the enhancement layer, from the reference layer, and residual information.
    Type: Application
    Filed: May 3, 2017
    Publication date: August 17, 2017
    Applicants: ELECTRONICS AND TELECOMMUNICATIONS RESEARCH INSTITUTE, KWANGWOON UNIVERSITY INDUSTRY-ACADEMIC COLLABORATION FOUNDATION
    Inventors: Ha Hyun LEE, Jung Won KANG, Jin Soo CHOI, Jin Woong KIM, Dong Gyu SIM, Hyo Min CHOI, Jung Hak NAM
  • 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
  • Method for coding and decoding scalable video and apparatus using same
    Patent number: 9686544
    Abstract: The present invention relates to a method and an apparatus for interlayer prediction, and the method for interlayer prediction, according to the present invention, comprises the steps of: deciding whether to apply an interlayer prediction to an enhancement layer; and performing a prediction on a current block of the enhancement layer based on reference information that is generalized and generated from a reference picture, which is decoded, of a reference layer, when the interlayer prediction is applied, wherein the reference layer information can be encoding information of a reference block, which corresponds to a current block of the enhancement layer, from the reference layer, and residual information.
    Type: Grant
    Filed: June 15, 2012
    Date of Patent: June 20, 2017
    Assignees: Electronics and Telecommunications Research Institute, Kwangwoon University Industry-Academic Collaboration Foundation
    Inventors: Ha Hyun Lee, Jung Won Kang, Jin Soo Choi, Jin Woong Kim, Dong Gyu Sim, Hyo Min Choi, Jung Hak Nam
  • Method for coding and decoding scalable video and apparatus using same
    Patent number: 9686543
    Abstract: The present invention relates to a method and an apparatus for interlayer intra-prediction, and the method for interlayer intra-prediction, according to the present invention, comprises the steps of: deciding whether to apply an interlayer prediction to an enhancement layer; and performing a prediction on a current block of the enhancement layer based on reference information that is generalized and generated from a reference picture, which is decoded, of a reference layer, when the interlayer prediction is applied.
    Type: Grant
    Filed: June 15, 2012
    Date of Patent: June 20, 2017
    Assignees: Electronics and Telecommunications Research Institute, Kwangwoon University Industry-Academic Collaboration Foundation
    Inventors: Ha Hyun Lee, Jung Won Kang, Jin Soo Choi, Jin Woong Kim, Dong Gyu Sim, Hyo Min Choi, Jung Hak Nam