Patents by Inventor Chang Heon Lee
Chang Heon Lee 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).
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Patent number: 8996388Abstract: An apparatus for processing an audio signal and method thereof are disclosed. The present invention includes receiving, by an audio processing apparatus, an audio signal including a first data of a first block encoded with rectangular coding scheme and a second data of a second block encoded with non-rectangular coding scheme; receiving a compensation signal corresponding to the second block; estimating a prediction of an aliasing part using the first data; and, obtaining a reconstructed signal for the second block based on the second data, the compensation signal and the prediction of aliasing part.Type: GrantFiled: August 6, 2013Date of Patent: March 31, 2015Assignee: Industry-Academic Cooperation Foundation, Yonsei UniversityInventors: Hyen-O Oh, Chang Heon Lee, Hong Goo Kang, Jung Wook Song
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Patent number: 8990095Abstract: An apparatus for processing an audio signal and method thereof are disclosed. The present invention includes receiving, by an audio processing apparatus, an audio signal including a first data of a first block encoded with rectangular coding scheme and a second data of a second block encoded with non-rectangular coding scheme; receiving a compensation signal corresponding to the second block; estimating a prediction of an aliasing part using the first data; and, obtaining a reconstructed signal for the second block based on the second data, the compensation signal and the prediction of aliasing part.Type: GrantFiled: August 6, 2013Date of Patent: March 24, 2015Assignee: Industry-Academic Cooperation Foundation, Yonsei UniversityInventors: Hyen-O Oh, Chang Heon Lee, Hong Goo Kang, Jung Wook Song
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Patent number: 8972270Abstract: A method for processing an audio signal is disclosed. The method for processing an audio signal includes frequency-transforming an audio signal to generate a frequency-spectrum, deciding a weighting per band corresponding to energy per band using the frequency spectrum, receiving a masking threshold based on a psychoacoustic model, applying the weighting to the masking threshold to generate a modified masking threshold, and quantizing the audio signal using the modified masking threshold.Type: GrantFiled: May 25, 2009Date of Patent: March 3, 2015Assignees: LG Electronics Inc., Industry-Academic Cooperation Foundation, Yonsei UniversityInventors: Hyen-O Oh, Chang Heon Lee, Jeongook Song, Yang Won Jung, Hong Goo Kang
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Patent number: 8930201Abstract: An apparatus for processing an audio signal and method thereof are disclosed. The present invention includes receiving, by an audio processing apparatus, an audio signal including a first data of a first block encoded with rectangular coding scheme and a second data of a second block encoded with non-rectangular coding scheme; receiving a compensation signal corresponding to the second block; estimating a prediction of an aliasing part using the first data; and, obtaining a reconstructed signal for the second block based on the second data, the compensation signal and the prediction of aliasing part.Type: GrantFiled: August 6, 2013Date of Patent: January 6, 2015Assignee: Industry-Academic Cooperation Foundation, Yonsei UniversityInventors: Hyen-O Oh, Chang Heon Lee, Hong Goo Kang, Jung Wook Song
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Patent number: 8930199Abstract: A method of processing an audio signal is disclosed.Type: GrantFiled: September 17, 2010Date of Patent: January 6, 2015Assignee: Industry-Academic Cooperation Foundation, Yonsei UniversityInventors: Hyen-O Oh, Chang Heon Lee, Hong Goo Kang, Jeongook Song
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Publication number: 20140349119Abstract: A polycarbonate resin composition according to the present invention comprises: (A) a polycarbonate; (B) a polycarbonate containing a non-phenyl group; (c) a rubber-modified aromatic vinyl graft copolymer; and (D) an aromatic phosphoric acid ester. The polycarbonate resin composition has superior physical balance by being flame retardant, shock resistant, low temperature shock resistant, and chemical resistant.Type: ApplicationFiled: December 21, 2011Publication date: November 27, 2014Inventors: Jong Chan Hur, O Sung Kwon, Jun Ho Chi, Hyuck Man Kwon, Chang Heon Lee
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Patent number: 8892427Abstract: An apparatus for processing an audio signal and method thereof are disclosed. The present invention includes receiving, by an audio processing apparatus, an audio signal including a first data of a first block encoded with rectangular coding scheme and a second data of a second block encoded with non-rectangular coding scheme; receiving a compensation signal corresponding to the second block; estimating a prediction of an aliasing part using the first data; and, obtaining a reconstructed signal for the second block based on the second data, the compensation signal and the prediction of aliasing part.Type: GrantFiled: July 27, 2010Date of Patent: November 18, 2014Assignee: Industry-Academic Cooperation Foundation, Yonsei UniversityInventors: Hyen-O Oh, Hong Goo Kang, Chang Heon Lee, Jeong Ook Song
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Method and an apparatus for processing speech, audio, and speech/audio signal using mode information
Patent number: 8781843Abstract: A method of processing a signal, which includes receiving at least one of a first signal and a second signal, receiving mode information, and decoding the at least one of the first signal and the second signal using at least one of a first coding scheme and a second coding scheme according to the mode information. Further, the mode information is information for indicating that a prescribed mode corresponds to which one of at least three modes.Type: GrantFiled: October 15, 2008Date of Patent: July 15, 2014Assignee: Intellectual Discovery Co., Ltd.Inventors: Hyen-O Oh, Hong Goo Kang, Chang Heon Lee, Sang Wook Shin, Yang Won Jung -
Publication number: 20140025388Abstract: An apparatus for processing an audio signal and method thereof are disclosed. The present invention includes receiving, by an audio processing apparatus, an audio signal including a first data of a first block encoded with rectangular coding scheme and a second data of a second block encoded with non-rectangular coding scheme; receiving a compensation signal corresponding to the second block; estimating a prediction of an aliasing part using the first data; and, obtaining a reconstructed signal for the second block based on the second data, the compensation signal and the prediction of aliasing part.Type: ApplicationFiled: August 6, 2013Publication date: January 23, 2014Applicant: INDUSTRY-ACADEMIC COOPERATION FOUNDATION, YONSEI UNIVERSITYInventors: Hyen-O Oh, Chang Heon Lee, Hong Goo Kang, Jung Wook Song
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Publication number: 20140025387Abstract: An apparatus for processing an audio signal and method thereof are disclosed. The present invention includes receiving, by an audio processing apparatus, an audio signal including a first data of a first block encoded with rectangular coding scheme and a second data of a second block encoded with non-rectangular coding scheme; receiving a compensation signal corresponding to the second block; estimating a prediction of an aliasing part using the first data; and, obtaining a reconstructed signal for the second block based on the second data, the compensation signal and the prediction of aliasing part.Type: ApplicationFiled: August 6, 2013Publication date: January 23, 2014Applicant: INDUSTRY-ACADEMIC COOPERATION FOUNDATION, YONSEI UNIVERSITYInventors: Hyen-O Oh, Chang Heon Lee, Hong Goo Kang, Jung Wook Song
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Publication number: 20140019143Abstract: An apparatus for processing an audio signal and method thereof are disclosed. The present invention includes receiving, by an audio processing apparatus, an audio signal including a first data of a first block encoded with rectangular coding scheme and a second data of a second block encoded with non-rectangular coding scheme; receiving a compensation signal corresponding to the second block; estimating a prediction of an aliasing part using the first data; and, obtaining a reconstructed signal for the second block based on the second data, the compensation signal and the prediction of aliasing part.Type: ApplicationFiled: August 6, 2013Publication date: January 16, 2014Applicant: Industry-Academic Cooperation Foundation, Yonsei UniversityInventors: Hyen-O Oh, Chang Heon Lee, Hong Goo Kang, Jung Wook Song
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Publication number: 20130332149Abstract: An apparatus for processing an audio signal and method thereof are disclosed. The present invention includes receiving, by an audio processing apparatus, an audio signal including a first data of a first block encoded with rectangular coding scheme and a second data of a second block encoded with non-rectangular coding scheme; receiving a compensation signal corresponding to the second block; estimating a prediction of an aliasing part using the first data; and, obtaining a reconstructed signal for the second block based on the second data, the compensation signal and the prediction of aliasing part.Type: ApplicationFiled: August 6, 2013Publication date: December 12, 2013Applicant: INDUSTRY-ACADEMIC COOPERATION FOUNDATION, YOUSEI UNIVERSITYInventors: Hyen-O Oh, Chang Heon Lee, Hong Goo Kang, Jung Wook Song
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Publication number: 20130325487Abstract: An apparatus for processing an audio signal and method thereof are disclosed. The present invention includes receiving, by an audio processing apparatus, an audio signal including a first data of a first block encoded with rectangular coding scheme and a second data of a second block encoded with non-rectangular coding scheme; receiving a compensation signal corresponding to the second block; estimating a prediction of an aliasing part using the first data; and, obtaining a reconstructed signal for the second block based on the second data, the compensation signal and the prediction of aliasing part.Type: ApplicationFiled: August 6, 2013Publication date: December 5, 2013Applicant: INDUSTRY-ACADEMIC COOPERATION FOUNDATION YONGSEI UNIVERSITYInventors: Hyen-O Oh, Chang Heon Lee, Hong Goo Kang, Jung Wook Song
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Publication number: 20130325486Abstract: An apparatus for processing an audio signal and method thereof are disclosed. The present invention includes receiving, by an audio processing apparatus, an audio signal including a first data of a first block encoded with rectangular coding scheme and a second data of a second block encoded with non-rectangular coding scheme; receiving a compensation signal corresponding to the second block; estimating a prediction of an aliasing part using the first data; and, obtaining a reconstructed signal for the second block based on the second data, the compensation signal and the prediction of aliasing part.Type: ApplicationFiled: August 6, 2013Publication date: December 5, 2013Applicant: INDUSTRY-ACADEMIC COOPERATION FOUNDATION, YONSEI UNIVERSITYInventors: Hyen-O Oh, Chang Heon Lee, Hong Goo Kang, Jung Wook Song
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Patent number: 8566107Abstract: Disclosed is a method of processing a signal, which includes receiving at least one of a first signal and a second signal, receiving mode information, and decoding the at least one of the first signal and the second signal using at least one of a first coding scheme and a second coding scheme according to the mode information. The mode information is information for indicating that a prescribed mode corresponds to one of at least three modes. The method includes detecting when a restricted mode change occurs and changing at least one mode when detecting a restricted mode change.Type: GrantFiled: October 15, 2008Date of Patent: October 22, 2013Assignees: LG Electronics Inc., Intellectual Discovery Co., Ltd.Inventors: Hyen-O Oh, Hong Goo Kang, Chang Heon Lee, Sang Wook Shin, Yang Won Jung
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Publication number: 20130103407Abstract: The present invention relates to a method for processing an audio signal, comprising the following steps: performing a linear predictive analysis on the current frame of an audio signal so as to generate a first target vector, which is a target vector of a first stage, on the basis of a plurality of linear prediction transform coefficients; performing vector quantization on the first target vector so as to acquire a predetermined number of first temporary candidate code vectors of the first stage; calculating first temporary candidate errors, which are errors between the first temporary candidate code vectors and the first target vector; and determining a first number, which is the number of the first candidate code vectors, on the basis of the first temporary candidate errors, and acquiring first final candidate code vectors in the same amount as the first number.Type: ApplicationFiled: April 8, 2011Publication date: April 25, 2013Applicant: LG ELECTRONICS INC.Inventors: Gyu Hyeok Jeong, Hye Jeong Jeon, Byung Suk Lee, Chang Heon Lee
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Publication number: 20130085252Abstract: Polycarbonate includes repeat units represented by Formula 1, Formula 2 and Formula 3, respectively: wherein: R1 and R2 are the same or different and are each independently substituted or unsubstituted C1 to C6 alkyl, substituted or unsubstituted C3 to C6 cycloalkyl, substituted or unsubstituted C6 to C12 aryl or halogen, a and b are the same or different and are each independently an integer from 0 to 4, and Q is substituted or unsubstituted C5 to C10 cycloalkyl.Type: ApplicationFiled: December 16, 2011Publication date: April 4, 2013Applicant: CHEIL INDUSTRIES INC.Inventors: O Sung KWON, Jun Ho CHI, Jong Chan HUR, Chang Heon LEE, Bok Nam JANG
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Patent number: 8410240Abstract: Polycarbonate includes repeat units represented by Formula 1, Formula 2 and Formula 3, respectively: wherein: R1 and R2 are the same or different and are each independently substituted or unsubstituted C1 to C6 alkyl, substituted or unsubstituted C3 to C6 cycloalkyl, substituted or unsubstituted C6 to C12 aryl or halogen, a and b are the same or different and are each independently an integer from 0 to 4, and Q is substituted or unsubstituted C5 to C10 cycloalkyl.Type: GrantFiled: December 16, 2011Date of Patent: April 2, 2013Assignee: Cheil Industries Inc.Inventors: O Sung Kwon, Jun Ho Chi, Jong Chan Hur, Chang Heon Lee, Bok Nam Jang
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Publication number: 20130013321Abstract: A method of processing an audio signal is disclosed. The present invention includes a method for processing an audio signal, comprising: receiving, by an audio processing apparatus, the spectral data including a current block, and substitution type information indicating whether to apply a shape prediction scheme to a current block; when the substitution type information indicates that the shape prediction scheme is applied to the current block, receiving lag information indicating an interval between spectral coefficients of the current block and the predictive shape vector of a current frame or a previous frame; obtaining spectral coefficients by substituting for spectral hole included in the current block using the predictive shape vector.Type: ApplicationFiled: November 12, 2010Publication date: January 10, 2013Applicant: LG ELECTRONICS INC.Inventors: Hyen-O Oh, Chang Heon Lee, Hong Goo Kang
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Publication number: 20120239408Abstract: A method of processing an audio signal is disclosed.Type: ApplicationFiled: September 17, 2010Publication date: September 20, 2012Applicants: LG ELECTRONICS INC., INDUSTRY-ACADEMIC COOPERATION FOUNDATION, YONSEI UNIVERSITYInventors: Hyen-O Oh, Chang Heon Lee, Hong Goo Kang, Jeongook Song