Patents by Inventor Chung-a Han

Chung-a Han 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: 20210368186
    Abstract: A three-dimensional data encoding method includes: calculating coefficient values from pieces of attribute information of three-dimensional points included in point cloud data; quantizing the coefficient values individually to generate quantized values; and generating a bitstream including the quantized values. Each of the coefficient values belongs to any one of layers. In the quantizing, each of the coefficient values is quantized using a quantization parameter for a layer to which the coefficient value belongs among the layers, and the bitstream includes first information and pieces of second information, the first information indicating a reference quantization parameter, the pieces of second information being for calculating quantization parameters for the layers from the reference quantization parameter.
    Type: Application
    Filed: July 30, 2021
    Publication date: November 25, 2021
    Inventors: Toshiyasu SUGIO, Noritaka IGUCHI, Chung Dean HAN, Chi WANG, Pongsak LASANG
  • Publication number: 20210352323
    Abstract: A three-dimensional data encoding method includes: obtaining geometry information which includes first three-dimensional positions on a measurement target, and is generated by a measurer that radially emits an electromagnetic wave in different directions and obtains a reflected wave which is the electromagnetic wave that is reflected by the measurement target; generating a two-dimensional image including first pixels corresponding to the directions, based on the geometry information; and encoding the two-dimensional image to generate a bitstream. Each of the first pixels has a pixel value indicating a first three-dimensional position or attribute information of a three-dimensional point which is included in a three-dimensional point cloud and corresponds to a direction to which the first pixel corresponds among the directions.
    Type: Application
    Filed: July 21, 2021
    Publication date: November 11, 2021
    Inventors: Toshiyasu SUGIO, Noritaka IGUCHI, Pongsak LASANG, Chi WANG, Chung Dean HAN
  • Publication number: 20210295569
    Abstract: A three-dimensional data encoding method includes: generating combined point cloud data by combining pieces of point cloud data; and generating a bitstream by encoding the combined point cloud data. The bitstream includes (i) first information indicating a maximum number of duplicated points that are included in each of the pieces of point cloud data and are three-dimensional points having same geometry information, and (ii) pieces of second information corresponding one-to-one with point indexes and each indicating which of the pieces of point cloud data three-dimensional points having a corresponding one of the point indexes belong to, the point indexes being indexes to which values a total number of which is equal to the maximum number are assigned, and being used for identifying duplicated points belonging to same point cloud data.
    Type: Application
    Filed: May 28, 2021
    Publication date: September 23, 2021
    Inventors: Toshiyasu SUGIO, Noritaka IGUCHI, Chung Dean HAN, Chi WANG, Pongsak LASANG
  • Publication number: 20210276538
    Abstract: A device for controlling wheel slip of a vehicle includes: a displacement sensor for measuring a suspension displacement of drive wheels; and a controller configured to control braking of the drive wheels in consideration of the suspension displacement of the drive wheels when slip occurs on the drive wheels. The device may control braking of a slip-occurred wheel in consideration of a displacement of a suspension corresponding to the slip-occurred wheel of the vehicle.
    Type: Application
    Filed: July 15, 2020
    Publication date: September 9, 2021
    Inventors: Hyun Su KIM, Chung Hee HAN
  • Publication number: 20210233284
    Abstract: A three-dimensional data encoding method includes: encoding first information of a first current node or second information a second current node, the first current node being included in an N-ary tree structure of first three-dimensional points included in a first three-dimensional point cloud, N being 2 or 4, the second current node being included in an octree structure of second three-dimensional points included in a second three-dimensional point cloud The encoding of the first information or the second information includes encoding the first information using a first encoding pattern including a pattern common to a second encoding pattern used in encoding the second information.
    Type: Application
    Filed: April 12, 2021
    Publication date: July 29, 2021
    Inventors: Toshiyasu SUGIO, Noritaka IGUCHI, Chi WANG, Pongsak LASANG, Chung Dean HAN
  • Publication number: 20210233281
    Abstract: A three-dimensional data encoding method includes: generating a bitmap indicating which of pieces of three-dimensional data a three-dimensional point belongs to, the three-dimensional point being included in a unit space; generating a conversion code using a look-up table and the bitmap generated; and generating encoded data including duplicated point information indicating a total number of three-dimensional points included in the unit space, and conversion code information indicating the conversion code. The generating of the conversion code includes: generating the conversion code from the bitmap when the total number of the three-dimensional points included in the unit space is less than or equal to a predetermined threshold value; and generating the conversion code from an inverted bitmap when the total number of the three-dimensional points included in the unit space is greater than the predetermined threshold value, the inverted bitmap being obtained by inverting 0 and 1 included in the bitmap.
    Type: Application
    Filed: April 9, 2021
    Publication date: July 29, 2021
    Inventors: Chi WANG, Pongsak LASANG, Chung Dean HAN, Noritaka IGUCHI, Toshiyasu SUGIO
  • Publication number: 20210168400
    Abstract: A three-dimensional data encoding method includes: combining first point cloud data and second point cloud data to generate third point cloud data; and encoding the third point cloud data to generate encoded data. The encoded data includes identification information indicating whether each of three-dimensional points included in the third point cloud data belongs to the first point cloud data or the second point cloud data.
    Type: Application
    Filed: January 19, 2021
    Publication date: June 3, 2021
    Inventors: Chung Dean HAN, Chi WANG, Pongsak LASANG, Noritaka IGUCHI, Toshiyasu SUGIO
  • Publication number: 20210168392
    Abstract: A three-dimensional data encoding method includes: encoding subspaces obtained by dividing a current space which includes three-dimensional points, to generate pieces of encoded data; and generating a bitstream including the pieces of encoded data and first information indicating a shape of each of the subspaces.
    Type: Application
    Filed: January 21, 2021
    Publication date: June 3, 2021
    Inventors: Chi WANG, Pongsak LASANG, Chung Dean HAN, Noritaka IGUCHI, Toshiyasu SUGIO
  • Publication number: 20210166432
    Abstract: A three-dimensional data encoding method includes: generating a bitmap for combined three-dimensional data that is a combination of pieces of three-dimensional data, the bitmap indicating which of the pieces of three-dimensional data a three-dimensional point belongs to, the three-dimensional point being a three-dimensional point of the combined three-dimensional data and included in a unit space; generating a conversion code using the bitmap; and generating encoded data including duplicated point information indicating a total number of three-dimensional points included in the unit space, and conversion code information indicating the conversion code. Each of values of the bitmap corresponds to a combination of the conversion code and the total number of the three-dimensional points included in the unit space.
    Type: Application
    Filed: January 21, 2021
    Publication date: June 3, 2021
    Inventors: Chi WANG, Pongsak LASANG, Chung Dean HAN, Noritaka IGUCHI, Toshiyasu SUGIO
  • Patent number: 11016009
    Abstract: Disclosed is a method of isolating extracellular vesicles using an aqueous two-phase system (ATPS), including (a) preparing an ATPS by mixing a first material and a second material, which are immiscible with each other, with a body fluid or an aqueous solution containing extracellular vesicles and (b) isolating extracellular vesicles concentrated in the second material of the ATPS. This method can exhibit very high isolation efficiency, a simple isolation manner, and a very short isolation time. The isolation of extracellular vesicles using the ATPS requires no ultracentrifuge and achieves almost 100% isolation efficiency within a short time of about 10˜20 min, and thus the method of the invention is practical, is economical due to low costs thereof, can increase the purity of extracellular vesicles contaminated with protein, enables the diagnosis of disease using the isolated extracellular vesicles, and can be applied to various fields using extracellular vesicles.
    Type: Grant
    Filed: March 3, 2016
    Date of Patent: May 25, 2021
    Assignees: POSTECH ACADEMY-INDUSTRY FOUNDATION, THE REGENTS OF THE UNIVERSITY OF MICHIGEN
    Inventors: Jae Sung Park, Joseph M Labuz, Shuichi Takayama, Hyun Woo Shin, Chung Min Han
  • Publication number: 20210144379
    Abstract: A three-dimensional data encoding method includes: quantizing geometry information of each of three-dimensional points, using a first quantization parameter; quantizing a first luminance using a second quantization parameter and quantizing a first chrominance using a third quantization parameter, the first luminance and the first chrominance indicating a first color among attribute information of each of the three dimensional points; and generating a bitstream including the geometry information quantized, the first luminance quantized, the first chrominance quantized, the first quantization parameter, the second quantization parameter, and a first difference between the second quantization parameter and the third quantization parameter.
    Type: Application
    Filed: January 15, 2021
    Publication date: May 13, 2021
    Inventors: Chung Dean HAN, Pongsak LASANG, Chi WANG, Noritaka IGUCHI, Toshiyasu SUGIO
  • Publication number: 20210127136
    Abstract: A three-dimensional data encoding method includes: generating a bitstream by encoding subspaces included in a current space in which three-dimensional points are included. The bitstream includes encoded data respectively corresponding to the subspaces. In the generating of the bitstream, a list of information about the subspaces is stored in first control information included in the bitstream. The subspaces are respectively associated with identifiers assigned to the subspaces, and the first control information is common to the encoded data. Each of the identifiers assigned to the subspaces respectively corresponding to the encoded data is stored in a header of a corresponding one of the encoded data.
    Type: Application
    Filed: January 6, 2021
    Publication date: April 29, 2021
    Inventors: Chung Dean HAN, Pongsak LASANG, Chi WANG, Noritaka IGUCHI, Toshiyasu SUGIO
  • Publication number: 20210099697
    Abstract: A three-dimensional data encoding method includes: encoding a first flag indicating whether a node having a parent node different from a parent node of a current node is to be referred to in encoding of the current node included in an n-ary tree structure of three-dimensional points included in three-dimensional data; selecting a coding table from N coding tables according to occupancy states of neighboring nodes of the current node, and performing arithmetic encoding on information of the current node using the coding table selected, when the first flag indicates that the node is to be referred to; and selecting a coding table from M coding tables according to the occupancy states of the neighboring nodes of the current node, and performing arithmetic encoding on information of the current node using the coding table selected, when the first flag indicates that the node is not to be referred to.
    Type: Application
    Filed: December 11, 2020
    Publication date: April 1, 2021
    Inventors: Toshiyasu SUGIO, Chi WANG, Pongsak LASANG, Chung Dean HAN, Noritaka IGUCHI
  • Publication number: 20210084312
    Abstract: A three-dimensional data encoding method of encoding three-dimensional points obtained by a sensor includes: encoding local coordinate information indicating sets of local coordinates that are coordinates of the three-dimensional points and are dependent on a location of the sensor; and generating an encoded bitstream including the local coordinate information encoded and global coordinate information indicating global coordinates that are coordinates of a reference point or at least one of the three-dimensional points and are independent from the location of the sensor.
    Type: Application
    Filed: November 27, 2020
    Publication date: March 18, 2021
    Inventors: Pongsak LASANG, Zheng WU, Chi WANG, Chung Dean HAN, Toshiyasu SUGIO
  • Publication number: 20210056732
    Abstract: A three-dimensional data encoding method includes generating a bitstream by encoding subspaces included in a current space including three-dimensional points. In the generating of the bitstream: first information is stored in a first header which is common to the subspaces and included in the bitstream, the first information indicating first coordinates which are coordinates of the current space; and second information is stored in a second header which is provided on a subspace basis and included in the bitstream, the second information indicating a difference between second coordinates which are coordinates of a corresponding subspace among the subspaces and the first coordinates.
    Type: Application
    Filed: November 6, 2020
    Publication date: February 25, 2021
    Inventors: Chung Dean HAN, Pongsak LASANG, Chi WANG, Toshiyasu SUGIO
  • Publication number: 20210021869
    Abstract: A three-dimensional data encoding method includes encoding information of a current node included in an N-ary tree structure of three-dimensional points included in three-dimensional data, where N is an integer greater than or equal to 2. In the encoding, first information is encoded, the first information indicating a range for one or more referable neighboring nodes among neighboring nodes spatially neighboring the current node, and the current node is encoded with reference to a neighboring node within the range.
    Type: Application
    Filed: October 7, 2020
    Publication date: January 21, 2021
    Inventors: Chi WANG, Pongsak LASANG, Chung Dean HAN, Toshiyasu SUGIO
  • Publication number: 20210012538
    Abstract: A three-dimensional data encoding method includes: dividing three-dimensional points included in three-dimensional data into three-dimensional point sub-clouds including a first three-dimensional point sub-cloud and a second three-dimensional point sub-cloud; appending first information indicating a space of the first three-dimensional point sub-cloud to a header of the first three-dimensional point sub-cloud, and appending second information indicating a space of the second three-dimensional point sub-cloud to a header of the second three-dimensional point sub-cloud; and encoding the first three-dimensional point sub-cloud and the second three-dimensional point sub-cloud so that the first three-dimensional point sub-cloud and the second three-dimensional point sub-cloud are decodable independently of each other.
    Type: Application
    Filed: September 30, 2020
    Publication date: January 14, 2021
    Inventors: Chi WANG, Pongsak LASANG, Chung Dean HAN, Toshiyasu SUGIO
  • Publication number: 20200284848
    Abstract: Inspection apparatus is provided for inspecting a first electronic device and a second electronic device. The inspection apparatus includes a first signal transfer unit, a second signal transfer unit, a first signal output unit and a second signal output unit. The first signal transfer unit is adapted to receive a first input signal. The second signal transfer unit is adapted to receive a second input signal. The first signal output unit is selectively coupled to the first signal transfer unit or the second signal transfer unit to output a first output signal to inspect the first electronic device. The second signal output unit is selectively coupled to the first signal transfer unit or the second signal transfer unit to output a second output signal to inspect the second electronic device. The inspection apparatus can realize automatic inspection.
    Type: Application
    Filed: June 26, 2019
    Publication date: September 10, 2020
    Inventors: Chung Kai HAN, Yu Shan HUANG, Po-Chuan KU, Chun Yen TSAI
  • Patent number: 10196600
    Abstract: The disclosure provides a method for manufacturing an active substance for inducing self-lysis in microalga cells, including: inoculating a bacterial strain belonging to Bacillus into a culturing medium to obtain a bacterial suspension; culturing the bacterial strain belonging to Bacillus at least to a stationary phase to a condition in which the bacterial strain belonging to Bacillus aggregates in the bacterial suspension and the bacterial suspension becomes pellucid; and after the bacterial strain belonging to Bacillus aggregates in the bacterial suspension and the bacterial suspension becomes pellucid, performing a vacuum distillation procedure on the bacterial suspension to obtain an active solution, wherein the active solution contains an active substance for inducing self-lysis in microalga cells.
    Type: Grant
    Filed: June 11, 2015
    Date of Patent: February 5, 2019
    Assignee: INDUSTRIAL TECHNOLOGY RESEARCH INSTITUTE
    Inventors: Ming-Der Bai, Chung-Cheng Han, Wen-Chang Lu, Hou-Peng Wan, Jo-Shu Chang, Chun-Yen Chen, Hsin-Yueh Chang
  • Patent number: 10111025
    Abstract: A method and apparatuses for device control performed by a first device to control services provided by a service providing device is provided. The method includes connecting, through out-of-band communication, to a second device that includes identification information related to the service providing device, receiving, through the out-of-band communication, the identification information related to the service providing device from the second device, executing at least one application related to the identification information, and connecting, through in-band communication, to the service providing device using the identification information, and controlling, from the first device, services provided by the service providing device.
    Type: Grant
    Filed: December 26, 2013
    Date of Patent: October 23, 2018
    Assignee: SAMSUNG ELECTRONICS CO., LTD.
    Inventors: Jae-eun Kang, Chil-youl Yang, Myoung-hwan Lee, Chun-ho Lee, Tae-young Lee, Chung-suk Han