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).

  • Patent number: 11962990
    Abstract: In general, disclosed is a device that includes one or more processors, coupled to the memory, configured to perform an energy analysis with respect to one or more audio objects, in the ambisonics domain, in the first time segment. The one or more processors are also configured to perform a similarity measure between the one or more audio objects, in the ambisonics domain, in the first time segment, and the one or more audio objects, in the ambisonics domain, in the second time segment. In addition, the one or more processors are configured to perform a reorder of the one or more audio objects, in the ambisonics domain, in the first time segment with the one or more audio objects, in the ambisonics domain, in the second time segment, to generate one or more reordered audio objects in the first time segment.
    Type: Grant
    Filed: October 11, 2021
    Date of Patent: April 16, 2024
    Assignee: QUALCOMM Incorporated
    Inventors: Dipanjan Sen, Sang-Uk Ryu
  • Publication number: 20240098444
    Abstract: In one aspect, a computer-implemented method, includes obtaining object audio and metadata that spatially describes the object audio, converting the object audio to Ambisonics audio based on the metadata, encoding, in a first bit stream, the Ambisonics audio, and encoding, in a second bit stream, at least a subset of the metadata.
    Type: Application
    Filed: August 23, 2023
    Publication date: March 21, 2024
    Inventors: Sina Zamani, Moo Young Kim, Dipanjan Sen, Sang Uk Ryu, Juha O. Merimaa, Symeon Delikaris Manias
  • Publication number: 20240096335
    Abstract: In one aspect, a computer-implemented method, includes obtaining object audio and metadata that spatially describes the object audio, converting the object audio to time-frequency domain Ambisonics audio based on the metadata, and encoding the time-frequency domain Ambisonics audio and a subset of the metadata as one or more bitstreams to be stored in computer-readable memory or transmitted to a remote device.
    Type: Application
    Filed: August 23, 2023
    Publication date: March 21, 2024
    Inventors: Sina Zamani, Moo Young Kim, Dipanjan Sen, Sang Uk Ryu, Juha O. Merimaa, Symeon Delikaris Manias
  • Publication number: 20230344080
    Abstract: Disclosed is a separator for a lithium secondary battery including a porous polymer substrate and a hydrophilic modification layer disposed inside of the porous polymer substrate, or disposed inside of the porous polymer substrate and on at least one surface of the porous polymer substrate, the hydrophilic modification layer including a polymer compound represented by the disclosed Chemical Formula 1 and a surfactant. According to an embodiment of the present disclosure, it is possible to increase the electrolyte wettability and lithium-ion transport rate in a separator by using a polymer compound having a specific structure and a surfactant. Therefore, a battery using the separator may provide improved output characteristics and cycle characteristics.
    Type: Application
    Filed: September 27, 2021
    Publication date: October 26, 2023
    Applicant: LG Chem, Ltd.
    Inventors: Kong-Kyeom Kim, Hyok-Joon Kwon, A-Young Lee, Joo-Sung Lee, Sang-Uk Ryu, Min-Choon Park
  • Publication number: 20230283977
    Abstract: A data structure stored in memory includes a scene description that defines a hierarchy of scene components that are in digital audio content received from a producer. The hierarchy has several stages including a fourth stage in which a scene composition is defined that contains all scene components needed to render the digital audio content in a single presentation, for instance as intended by the producer, and for input to a spatial audio renderer, wherein the scene composition contains one or more composition selection groups. Other aspects are also described and claimed.
    Type: Application
    Filed: February 14, 2023
    Publication date: September 7, 2023
    Inventors: Frank BAUMGARTE, Moo Young KIM, Dipanjan SEN, Sang Uk RYU
  • Publication number: 20230108378
    Abstract: A method includes receiving first data associated with a first power amplifier and second data associated with a second power amplifier. The method also includes generating a first amplitude limiting signal having gain parameters that are based on the first data and the second data. The first data includes at least one of a temperature measurement associated with the first power amplifier, a supply voltage measurement associated with the first power amplifier, a load resistance associated with the first power amplifier, or a gain associated with the first power amplifier. The method further includes modifying an audio signal based at least in part on the first amplitude limiting signal to generate a first gain-adjusted audio signal. The method also includes providing a first output audio signal to the first power amplifier for amplification. The first output audio signal is based at least in part on the first gain-adjusted audio signal.
    Type: Application
    Filed: September 21, 2021
    Publication date: April 6, 2023
    Inventors: Earl Schreyer, Sherif Galal, Sang-Uk Ryu, Hui-ya Liao Nelson, Subbarao Surendra Chakkirala, Shreyas Srikanth Payal
  • Patent number: 11450305
    Abstract: Aspects of the disclosure relate to using a display as a sound emitter and may relate to an electronic device including a display. In particular a vibration sensor such as an accelerometer is physically coupled to the display and senses display vibration to provide a high accuracy feedback loop with respect to representing actual audio output from the display. The electronic device includes an actuator physically coupled to the display and configured to cause vibration of the display in response to an audio signal. The electronic device further includes a vibration sensor physically coupled to the display and configured to output a vibration sensor signal proportional to the vibration of the display due to the actuator. The electronic device further includes a processor operably coupled to the vibration sensor. The processor is configured to adjust the audio signal based on the vibration sensor signal from the vibration sensor.
    Type: Grant
    Filed: February 20, 2020
    Date of Patent: September 20, 2022
    Assignee: QUALCOMM Incorporated
    Inventors: Ricardo De Jesus Bernal Castillo, Wade Heimbigner, Andre Gustavo Schevciw, Sang-Uk Ryu
  • Patent number: 11348567
    Abstract: Aspects of the disclosure relate to using a display as a sound emitter and may relate to an electronic device including a display. In particular a vibration sensor such as an accelerometer is physically coupled to the display and senses display vibration to provide a high accuracy feedback loop with respect to representing actual audio output from the display. The electronic device includes an actuator physically coupled to the display and configured to cause vibration of the display in response to an audio signal. The electronic device further includes a vibration sensor physically coupled to the display and configured to output a vibration sensor signal proportional to the vibration of the display due to the actuator.
    Type: Grant
    Filed: February 20, 2020
    Date of Patent: May 31, 2022
    Assignee: QUALCOMM Incorporated
    Inventors: Ricardo De Jesus Bernal Castillo, Wade Heimbigner, Dinesh Ramakrishnan, Andre Schevciw, Sang-Uk Ryu
  • Publication number: 20220030372
    Abstract: In general, disclosed is a device that includes one or more processors, coupled to the memory, configured to perform an energy analysis with respect to one or more audio objects, in the ambisonics domain, in the first time segment. The one or more processors are also configured to perform a similarity measure between the one or more audio objects, in the ambisonics domain, in the first time segment, and the one or more audio objects, in the ambisonics domain, in the second time segment. In addition, the one or more processors are configured to perform a reorder of the one or more audio objects, in the ambisonics domain, in the first time segment with the one or more audio objects, in the ambisonics domain, in the second time segment, to generate one or more reordered audio objects in the first time segment.
    Type: Application
    Filed: October 11, 2021
    Publication date: January 27, 2022
    Inventors: Dipanjan Sen, Sang-Uk Ryu
  • Patent number: 11194194
    Abstract: An optical device is disclosed herein. In some embodiments, an optical device includes an active liquid crystal element, wherein the active liquid crystal element comprises two base layers, an active liquid crystal layer disposed between the two base layers, wherein the active liquid crystal layer includes a liquid crystal compound and is capable of switching between first and second oriented states, and a hard coating layer formed on one of the base layers, wherein the hard coating layer is formed on an active liquid crystal layer-facing surface or an opposite surface of the base layer, and wherein the hard coating layer having a thickness of 2 ?m or more. The optical device is capable of varying transmittance, and can be used for various applications such as eyewear, for example, sunglasses or AR (augmented reality) or VR (virtual reality) eyewear, an outer wall of a building or a vehicle sunroof.
    Type: Grant
    Filed: August 29, 2018
    Date of Patent: December 7, 2021
    Inventors: Jung Woon Kim, Su Young Ryu, Tae Yong Kim, Doo Young Huh, Byoung Kun Jeon, Sang Uk Ryu
  • Patent number: 11146903
    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: Grant
    Filed: May 28, 2014
    Date of Patent: October 12, 2021
    Assignee: Qualcomm Incorporated
    Inventors: Dipanjan Sen, Sang-Uk Ryu
  • Publication number: 20210223865
    Abstract: Various aspects of the present disclosure generally relate to haptic feedback. In some aspects, a device may receive an input identifying a one-cycle induced acceleration waveform associated with a haptic device, a resonant frequency associated with the haptic device, and a target acceleration waveform for the haptic device. The device may determine a plurality of weights based at least in part on the input. The device may generate a playback waveform based at least in part on the plurality of weights. The device may provide the playback waveform as input to the haptic device. Numerous other aspects are provided.
    Type: Application
    Filed: January 20, 2020
    Publication date: July 22, 2021
    Inventors: Van NGUYEN, Sang-Uk RYU, Shreyas Srikanth PAYAL, Hui-ya Liao NELSON
  • Patent number: 10882275
    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: Grant
    Filed: November 29, 2013
    Date of Patent: January 5, 2021
    Assignee: LG CHEM, LTD.
    Inventors: Sang Uk Ryu, Dong Ryul Kim, Jong Min Moon
  • Patent number: 10858537
    Abstract: The present application relates to gas barrier film having excellent adhesive strength and a method of manufacturing the same. Particularly, the present application is directed to providing a gas barrier film having excellent adhesion performance between an inorganic layer and a protective coating layer under harsh conditions by protective coating layer including inorganic nano particles surface-modified with organic silane on the inorganic layer.
    Type: Grant
    Filed: November 26, 2014
    Date of Patent: December 8, 2020
    Assignee: LG CHEM, LTD.
    Inventors: Sang Uk Ryu, Dong Ryul Kim, Seung Lac Ma, Jang Yeon Hwang, Jong Min Moon
  • Publication number: 20200275222
    Abstract: Aspects of the disclosure relate to using a display as a sound emitter and may relate to an electronic device including a display. In particular a vibration sensor such as an accelerometer is physically coupled to the display and senses display vibration to provide a high accuracy feedback loop with respect to representing actual audio output from the display. The electronic device includes an actuator physically coupled to the display and configured to cause vibration of the display in response to an audio signal. The electronic device further includes a vibration sensor physically coupled to the display and configured to output a vibration sensor signal proportional to the vibration of the display due to the actuator. The electronic device further includes a processor operably coupled to the vibration sensor. The processor is configured to adjust the audio signal based on the vibration sensor signal from the vibration sensor.
    Type: Application
    Filed: February 20, 2020
    Publication date: August 27, 2020
    Inventors: Ricardo De Jesus BERNAL CASTILLO, Wade HEIMBIGNER, Andre Gustavo SCHEVCIW, Sang-Uk RYU
  • Publication number: 20200275221
    Abstract: Aspects of the disclosure relate to using a display as a sound emitter and may relate to an electronic device including a display. In particular a vibration sensor such as an accelerometer is physically coupled to the display and senses display vibration to provide a high accuracy feedback loop with respect to representing actual audio output from the display. The electronic device includes an actuator physically coupled to the display and configured to cause vibration of the display in response to an audio signal. The electronic device further includes a vibration sensor physically coupled to the display and configured to output a vibration sensor signal proportional to the vibration of the display due to the actuator.
    Type: Application
    Filed: February 20, 2020
    Publication date: August 27, 2020
    Inventors: Ricardo De Jesus BERNAL CASTILLO, Wade HEIMBIGNER, Dinesh RAMAKRISHNAN, Andre Gustavo SCHEVCIW, Sang-Uk RYU
  • Publication number: 20200241338
    Abstract: The present application relates to an optical device. The present application provides an optical device capable of varying transmittance, and such an optical device can be used for various applications such as eyewear, for example, sunglasses or AR (augmented reality) or VR (virtual reality) eyewear, an outer wall of a building or a vehicle sunroof.
    Type: Application
    Filed: August 29, 2018
    Publication date: July 30, 2020
    Applicant: LG Chem, Ltd.
    Inventors: Jung Woon Kim, Su Young Ryu, Tae Yong Kim, Doo Young Huh, Byoung Kun Jeon, Sang Uk Ryu
  • Patent number: 10499176
    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: Grant
    Filed: May 28, 2014
    Date of Patent: December 3, 2019
    Assignee: Qualcomm Incorporated
    Inventors: Dipanjan Sen, Sang-Uk Ryu
  • Patent number: 9980074
    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: Grant
    Filed: May 28, 2014
    Date of Patent: May 22, 2018
    Assignee: QUALCOMM Incorporated
    Inventors: Dipanjan Sen, Sang-Uk Ryu
  • Patent number: 9884469
    Abstract: The present invention provides a multilayered plastic substrate that simultaneously satisfies improvement in high temperature thermal deformation according to low linear expansion coefficient and excellent dimensional stability and excellent gas barrier property, and is capable of being used instead of a glass substrate that has brittleness and heavy disadvantages without a problem caused by a difference in linear expansion coefficient between layers, and a method for manufacturing the same.
    Type: Grant
    Filed: November 19, 2009
    Date of Patent: February 6, 2018
    Assignee: LG CHEM, LTD.
    Inventors: Seung-Lac Ma, Dong-Ryul Kim, Gi-Cheul Kim, Sang-Uk Ryu, Ho-Jun Lee, Eun-Sil Lee, Jang-Yeon Hwang