Patents by Inventor Sang-uk Ryu

Sang-uk Ryu 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).

  • Publication number: 20160281229
    Abstract: A gas barrier film with a protective layer including inorganic particles is provided. A gas barrier effect of the gas barrier film is improved by including inorganic nanoparticles in a protective layer when a protective coating is performed to protect a gas barrier layer.
    Type: Application
    Filed: November 29, 2013
    Publication date: September 29, 2016
    Inventors: Sang Uk RYU, Dong Ryul KIM, Jong Min MOON
  • Patent number: 9319510
    Abstract: A personalized (i.e., speaker-derivable) bandwidth extension is provided in which the model used for bandwidth extension is personalized (e.g., tailored) to each specific user. A training phase is performed to generate a bandwidth extension model that is personalized to a user. The model may be subsequently used in a bandwidth extension phase during a phone call involving the user. The bandwidth extension phase, using the personalized bandwidth extension model, will be activated when a higher band (e.g., wideband) is not available and the call is taking place on a lower band (e.g., narrowband).
    Type: Grant
    Filed: February 15, 2013
    Date of Patent: April 19, 2016
    Assignee: QUALCOMM Incorporated
    Inventors: Lae-Hoon Kim, Sang-Uk Ryu, Jongwon Shin
  • Patent number: 9305567
    Abstract: A method for signal level matching by an electronic device is described. The method includes capturing a plurality of audio signals from a plurality of microphones. The method also includes determining a difference signal based on an inter-microphone subtraction. The difference signal includes multiple harmonics. The method also includes determining whether a harmonicity of the difference signal exceeds a harmonicity threshold. The method also includes preserving the harmonics to determine an envelope. The method further applies the envelope to a noise-suppressed signal.
    Type: Grant
    Filed: March 14, 2013
    Date of Patent: April 5, 2016
    Assignee: QUALCOMM Incorporated
    Inventors: Erik Visser, Lae-Hoon Kim, Jongwon Shin, Yinyi Guo, Sang-Uk Ryu, Andre Gustavo P. Schevciw
  • Publication number: 20150337440
    Abstract: A coating method which reduces damage of a barrier layer is provided. The barrier film has a gas barrier property improved by suppressing reduction of a water vapor transmittance rate through a non-contact coating method on a barrier layer when a protective coating is performed to protect a barrier layer of the barrier film.
    Type: Application
    Filed: November 29, 2013
    Publication date: November 26, 2015
    Inventors: Dong Ryul KIM, Jang Yeon HWANG, Seong Hwan LEE, Sang Uk RYU, Joon Hyung KIM, Beom Gwon SON, Hyun Ji LEE
  • Patent number: 9040115
    Abstract: Disclosed is a negative C-type retardation compensator for a liquid crystal display. The negative C-type retardation compensator for the liquid crystal display includes polyarlate having a thio group or a sulfur oxide group in a polymer main chain thereof. Accordingly, the retardation compensator has an absolute value of negative retardation that is larger in a thickness direction that a retardation compensator which includes polyarylate having no thio group or sulfur oxide group in a polymer main chain thereof even though the retardation compensator having the thio group or sulfur oxide group and the retardation compensator having no thio group or sulfur oxide group are the same as each other in thickness. Thereby, the negative C-type retardation compensator for liquid crystal displays is capable of being desirably applied to the liquid crystal displays.
    Type: Grant
    Filed: May 21, 2013
    Date of Patent: May 26, 2015
    Assignees: LG Chem, Ltd., IUCF-HYU (Industry-University Cooperation Foundation Hanyang University
    Inventors: Hee-Jung Kim, Dong-Ryul Kim, Ho-Jun Lee, Sang-Uk Ryu, Hyo-Sun Lee, Boong-Goon Jeong, Dae-Woo Nam, Ju-Eun Cha
  • Publication number: 20150086778
    Abstract: The present application relates to gas barrier film having excellent adhesive strength and a method of manufacturing the same.
    Type: Application
    Filed: November 26, 2014
    Publication date: March 26, 2015
    Inventors: Sang Uk RYU, Dong Ryul KIM, Seung Lac MA, Jang Yeon HWANG, Jong Min MOON
  • Patent number: 8920912
    Abstract: The present invention relates to a transparent electrically-conductive film comprising a substrate having a refractive index of n1, a first coating layer having a refractive index of n2, a second coating layer having a refractive index of n3, and an electrically-conductive oxide layer having a refractive index of n4 in a sequentially laminated form, wherein said refractive index of each layer complies with n1?n3<n2<n4, and a method of preparing the same. The transparent electrically-conductive film according to the present invention has especially excellent color feeling and mechanical property as well as excellent transmittance.
    Type: Grant
    Filed: July 7, 2011
    Date of Patent: December 30, 2014
    Assignee: LG Chem, Ltd.
    Inventors: Sang Uk Ryu, Dong Ryul Kim, Jang Yeon Hwang, Hyeon Woo Jang, Bon Suk Koo
  • Publication number: 20140358561
    Abstract: In general, techniques are described for identifying a codebook to be used when compressing spatial components of a sound field. A device comprising one or more processors may be configured to perform the techniques. The one or more processors may be configured to identify a Huffman codebook to use when compressing a spatial component of a plurality of spatial components based on an order of the spatial component relative to remaining ones of the plurality of spatial components, the spatial component generated by performing a vector based synthesis with respect to a plurality of spherical harmonic coefficients.
    Type: Application
    Filed: May 28, 2014
    Publication date: December 4, 2014
    Applicant: QUALCOMM Incorporated
    Inventors: Dipanjan Sen, Sang-Uk Ryu
  • Publication number: 20140358563
    Abstract: In general, techniques are described for compressing decomposed representations of a sound field. A device comprising one or more processors may be configured to perform the techniques. The one or more processors may be configured to obtain a bitstream comprising a compressed version of a spatial component of a sound field, the spatial component generated by performing a vector based synthesis with respect to a plurality of spherical harmonic coefficients.
    Type: Application
    Filed: May 28, 2014
    Publication date: December 4, 2014
    Applicant: QUALCOMM Incorporated
    Inventors: Dipanjan Sen, Sang-Uk Ryu
  • Publication number: 20140358562
    Abstract: In general, techniques are described for determining quantization step sizes for compression of spatial components of a sound field. A device comprising one or more processors may be configured to perform the techniques. In other words, the one or more processors may be configured to determine a quantization step size to be used when compressing a spatial component of a sound field, where the spatial component generated by performing a vector based synthesis with respect to a plurality of spherical harmonic coefficients.
    Type: Application
    Filed: May 28, 2014
    Publication date: December 4, 2014
    Applicant: QUALCOMM Incorporated
    Inventors: Dipanjan Sen, Sang-Uk Ryu
  • Patent number: 8855322
    Abstract: An original loudness level of an audio signal is maintained for a mobile device while maintaining sound quality as good as possible and protecting the loudspeaker used in the mobile device. The loudness of an audio (e.g., speech) signal may be maximized while controlling the excursion of the diaphragm of the loudspeaker (in a mobile device) to stay within the allowed range. In an implementation, the peak excursion is predicted (e.g., estimated) using the input signal and an excursion transfer function. The signal may then be modified to limit the excursion and to maximize loudness.
    Type: Grant
    Filed: August 9, 2011
    Date of Patent: October 7, 2014
    Assignee: QUALCOMM Incorporated
    Inventors: Sang-Uk Ryu, Jongwon Shin, Roy Silverstein, Andre Gustavo P. Schevciw, Pei Xiang
  • Publication number: 20140233725
    Abstract: A personalized (i.e., speaker-derivable) bandwidth extension is provided in which the model used for bandwidth extension is personalized (e.g., tailored) to each specific user. A training phase is performed to generate a bandwidth extension model that is personalized to a user. The model may be subsequently used in a bandwidth extension phase during a phone call involving the user. The bandwidth extension phase, using the personalized bandwidth extension model, will be activated when a higher band (e.g., wideband) is not available and the call is taking place on a lower band (e.g., narrowband).
    Type: Application
    Filed: February 15, 2013
    Publication date: August 21, 2014
    Applicant: Qualcomm Incorporated
    Inventors: Lae-Hoon Kim, Sang-Uk Ryu, Jongwon Shin
  • Patent number: 8805697
    Abstract: Decomposition of a multi-source signal using a basis function inventory and a sparse recovery technique is disclosed.
    Type: Grant
    Filed: October 24, 2011
    Date of Patent: August 12, 2014
    Assignee: QUALCOMM Incorporated
    Inventors: Erik Visser, Yinyi Guo, Mofei Zhu, Sang-Uk Ryu, Lae-Hoon Kim, Jongwon Shin
  • Patent number: 8728583
    Abstract: The present invention provides a composite material comprising a glass cloth; and an organic-inorganic hybrid composition comprising diphenylsilanediol and alkoxy silane, a composite film manufactured by using the same, and a method for manufacturing the composite film.
    Type: Grant
    Filed: February 15, 2013
    Date of Patent: May 20, 2014
    Assignee: LG Chem, Ltd.
    Inventors: Dong-Ryul Kim, Hee-Jung Kim, Sang-Uk Ryu, Jang-Yeon Hwang, Seung-Lac Ma, Myeong-Geun Ko, Gi-Cheul Kim, Boong-Goon Jeong, Ho-Jun Lee, Ju-Eun Cha
  • Publication number: 20140087162
    Abstract: A multi-layered plastic substrate is provided, in which a first organic or organic-inorganic hybrid layer, a gas barrier layer and a second organic or organic-inorganic hybrid layer are stacked on both surfaces of two plastic films joined to each other. At least one of the first and second organic or organic-inorganic hybrid layers is formed of a composition including at least one of: at least one organic silane selected from the group consisting of compounds represented by Formula 1, polycaprolactone, polytetrahydrofuran, epoxy and xylene glycol.
    Type: Application
    Filed: November 15, 2013
    Publication date: March 27, 2014
    Applicant: LG CHEM, LTD.
    Inventors: Seung Lac Ma, Dong Ryul Kim, Jang Yeon Hwang, Gi Cheul Kim, Myeong Geun Ko, Sang Uk Ryu, Ho Jun Lee
  • Patent number: 8620644
    Abstract: Encoder-assisted frame loss concealment (FLC) techniques for decoding audio signals are described. A decoder may discard an erroneous frame of an audio signal and may implement the encoder-assisted FLC techniques in order to accurately conceal the discarded frame based on neighboring frames and side-information transmitted from the encoder. The encoder-assisted FLC techniques include estimating magnitudes of frequency-domain data for the frame based on frequency-domain data of neighboring frames, and estimating signs of the frequency-domain data based on a subset of signs transmitted from the encoder as side-information. Frequency-domain data for a frame of an audio signal includes tonal components and noise components. Signs estimated from a random signal may be substantially accurate for the noise components of the frequency-domain data.
    Type: Grant
    Filed: May 10, 2006
    Date of Patent: December 31, 2013
    Assignee: QUALCOMM Incorporated
    Inventors: Sang-Uk Ryu, Eddie L. T. Choy, Samir Kumar Gupta
  • Patent number: 8575239
    Abstract: The present invention relates to a curing composition comprising a polyarylate having epoxy group and a cyanate ester resin, and a cured product prepared by using the same. The curing composition according to the present invention is used to provide a cured product which is excellent in terms of heat resistance and toughness.
    Type: Grant
    Filed: December 24, 2008
    Date of Patent: November 5, 2013
    Assignee: LG Chem, Ltd.
    Inventors: Sang-Uk Ryu, Dong-Ryul Kim, Gi-Cheul Kim, Ho-Jun Lee, Jang-Yeon Hwang, Seung-Lac Ma
  • Publication number: 20130260059
    Abstract: Disclosed is a negative C-type retardation compensator for a liquid crystal display. The negative C-type retardation compensator for the liquid crystal display includes polyarlate having a thio group or a sulfur oxide group in a polymer main chain thereof Accordingly, the retardation compensator has an absolute value of negative retardation that is larger in a thickness direction that a retardation compensator which includes polyarylate having no thio group or sulfur oxide group in a polymer main chain thereof even though the retardation compensator having the thio group or sulfur oxide group and the retardation compensator having no thio group or sulfur oxide group are the same as each other in thickness. Thereby, the negative C-type retardation compensator for liquid crystal displays is capable of being desirably applied to the liquid crystal displays.
    Type: Application
    Filed: May 21, 2013
    Publication date: October 3, 2013
    Applicant: LG CHEM, LTD.
    Inventors: HEE-JUNG KIM, DONG-RYUL KIM, HO-JUN LEE, SANG-UK RYU, HYO-SUN LEE, BOONG-GOON JEONG, DAE-WOO NAM, JU-EUN CHA
  • Patent number: 8470413
    Abstract: Disclosed is a negative C-type retardation compensator for a liquid crystal display. The negative C-type retardation compensator for the liquid crystal display includes polyarylate having a thio group or a sulfur oxide group in a polymer main chain thereof. Accordingly, the retardation compensator has an absolute value of negative retardation that is larger in a thickness direction than a retardation compensator which includes polyarylate having no thio group or sulfur oxide group in a polymer main chain thereof even though the retardation compensator having the thio group or sulfur oxide group and the retardation compensator having no thio group or sulfur oxide group are the same as each other in thickness. Thereby, the negative C-type retardation compensator for liquid crystal displays is capable of being desirably applied to the liquid crystal displays.
    Type: Grant
    Filed: January 11, 2007
    Date of Patent: June 25, 2013
    Assignee: LG Chem, Ltd.
    Inventors: Hee-Jung Kim, Dong-Ryul Kim, Ho-Jun Lee, Sang-Uk Ryu, Hyo-Sun Lee, Boong-Goon Jeong, Dae-Woo Nam, Ju-Eun Cha
  • Patent number: 8445108
    Abstract: The present invention provides a composite material comprising a glass cloth; and an organic-inorganic hybrid composition comprising diphenylsilanediol and alkoxy si lane, a composite film manufactured by using the same, and a method for manufacturing the composite film.
    Type: Grant
    Filed: October 17, 2008
    Date of Patent: May 21, 2013
    Assignee: LG Chem, Ltd.
    Inventors: Gi-Cheul Kim, Dong-Ryul Kim, Hee-Jung Kim, Jang-Yeon Hwang, Seung-Lac Ma, Boong-Goon Jeong, Sang-Uk Ryu, Ju-Eun Cha, Myeong-Geun Ko, Eun-Sil Lee