Patents by Inventor Chang Su Ryu

Chang Su 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: 11929389
    Abstract: An integrated circuit device includes a lower electrode, an upper electrode, and a dielectric layer structure between the lower electrode and the upper electrode, the dielectric layer structure including a first surface facing the lower electrode and a second surface facing the upper electrode. The dielectric layer structure includes a first dielectric layer including a first dielectric material and a plurality of grains extending from the first surface to the second surface and a second dielectric layer including a second dielectric material and surrounding a portion of a sidewall of each of the plurality of grains of the first dielectric layer in a level lower than the second surface. The second dielectric material includes a material having bandgap energy which is higher than bandgap energy of the first dielectric material.
    Type: Grant
    Filed: May 19, 2021
    Date of Patent: March 12, 2024
    Assignee: Samsung Electronics Co., Ltd.
    Inventors: Youn-soo Kim, Seung-min Ryu, Chang-su Woo, Hyung-suk Jung, Kyu-ho Cho, Youn-joung Cho
  • Patent number: 9589304
    Abstract: Provided are method and system of providing a social network service (SNS) in which life cycle concepts of creatures are a motif. Particularly, user's personal connection information and relationships between users are separately expressed as a structure of a creature made in a graphic, and a non-disclosure information portion for private use and a disclosure information portion for public use are clearly divided.
    Type: Grant
    Filed: May 23, 2014
    Date of Patent: March 7, 2017
    Inventor: Chang Su Ryu
  • Publication number: 20140351333
    Abstract: Provided are method and system of providing a social network service (SNS) in which life cycle concepts of creatures are a motif. Particularly, user's personal connection information and relationships between users are separately expressed as a structure of a creature made in a graphic, and a non-disclosure information portion for private use and a disclosure information portion for public use are clearly divided.
    Type: Application
    Filed: May 23, 2014
    Publication date: November 27, 2014
    Inventor: Chang Su RYU
  • Patent number: 7162295
    Abstract: Provided are an apparatus and a method for recognizing positive/negative intention using a fine change of gamma wave of a brainwave comprising the steps of detecting the brainwave from a head of a user, receiving and amplifying the brainwave detected from the step of detecting the brainwave, converting the amplified analog brainwave to one of a digital type, and recognizing the positive/negative intention of the user by detecting the fine change of the gamma wave of the brainwave in the digital type, which is transmitted from the A/D converting portion, whereby it is possible to implement an application of a real time interface and minimizes inconvenience for the user, and it requires no separate user practice.
    Type: Grant
    Filed: March 16, 2004
    Date of Patent: January 9, 2007
    Assignee: Electronics and Telecommunications Research Institute
    Inventors: Chang Su Ryu, Yoon Seon Song, Seung Hoon Nam, Tae Gyu Yim, Chang Yong Ryu
  • Patent number: 7035685
    Abstract: An electroencephalogram measuring apparatus and method. The electroencephalogram measuring method includes detecting electroencephalogram data of an experimentee, amplifying the detected electroencephalogram data, and converting the data into a digital signal. Also, provided is a high-speed Fourier transforming the converted digital electroencephalogram data, calculating an output value for each frequency of the Fourier transformed electroencephalogram, calculating an output value for each frequency of the electroencephalogram for a predetermined time interval and calculating a relative output value for the ground state of the experimentee. Further provided is comparing the calculated relative output value for each frequency for each predetermined time interval for the ground state of the experimentee, with a predetermined value.
    Type: Grant
    Filed: June 6, 2002
    Date of Patent: April 25, 2006
    Assignee: Electronics and Telecommunications Research Institute
    Inventors: Chang-su Ryu, Yoon-seon Song, Seung-chul Shin, Seung-hoon Nam
  • Patent number: 6928354
    Abstract: Disclosed are an apparatus and method for controlling vehicle brake using the brain waves. A driver controls the brake using the characteristic of the brain waves appearing before the driver's movement in the course of stepping on the brake pedal for braking in a dangerous condition. Therefore, the brake can be operated faster, and a condition where the brake is operated in an unwanted situation is prevented to prevent a traffic accident in advance. Further, the present invention does not require a driver's specific intentional behavior or psychological action except for natural behavior for braking (behavior to step on the brake pedal). Accordingly, the present invention makes a user convenient and is suitable for an ordinary person.
    Type: Grant
    Filed: September 24, 2003
    Date of Patent: August 9, 2005
    Assignee: Electronics and Telecommunications Research Institute
    Inventors: Chang Su Ryu, Yoon Seon Song, Seung Hoon Nam, Tae Gyu Yim
  • Publication number: 20040117098
    Abstract: Disclosed are an apparatus and method for controlling vehicle brake using the brain waves. A driver controls the brake using the characteristic of the brain waves appearing before the driver's movement in the course of stepping on the brake pedal for braking in a dangerous condition. Therefore, the brake can be operated faster, and a condition where the brake is operated in an unwanted situation is prevented to prevent a traffic accident in advance. Further, the present invention does not require a driver's specific intentional behavior or psychological action except for natural behavior for braking (behavior to step on the brake pedal). Accordingly, the present invention makes a user convenient and is suitable for an ordinary person.
    Type: Application
    Filed: September 24, 2003
    Publication date: June 17, 2004
    Inventors: Chang Su Ryu, Yoon Seon Song, Seung Hoon Nam, Tae Gyu Yim
  • Patent number: 6609024
    Abstract: A method of making a judgment on emotional positivist or negativity of a person, comprises the steps of obtaining asymmetry ratio between the brain waves of the left and right cerebral hemisphere measured in a given unit time by means of electrodes attached to the left and right side of the scalp, calculating asymmetry ratio versus time at each frequency of the measured brain waves if the time taken for measuring the brain waves exceeds a given time interval, calculating an increase and a decrease of the asymmetry ratio of the previous step with time, and entering the increase and decrease into an artificial neural network to make a judgment on the emotional positivity or negativity.
    Type: Grant
    Filed: October 13, 1999
    Date of Patent: August 19, 2003
    Assignee: Electronics and Telecommunications Research Institute
    Inventors: Chang-Su Ryu, Yoon-Seon Song
  • Publication number: 20030139683
    Abstract: An electroencephalogram measuring apparatus which can remove an electroencephalogram in which noise waves are combined, by considering individual differences, and a method therefor are provided.
    Type: Application
    Filed: June 6, 2002
    Publication date: July 24, 2003
    Inventors: Chang-su Ryu, Yoon-seon Song, Seung-chul Shin, Seung-hoon Nam
  • Publication number: 20030046254
    Abstract: The present invention relates to an apparatus for controlling an electrical device using a bio-signal measured when a user moves his/her face, and method thereof. The apparatus according to the present invention comprises a bio-signal detection unit for detecting the bio-signal generated when the user firmly shuts his/her mouth and when the user moves his/her head; a bio-signal amplification unit for amplifying the amount of the bio-signal detected in the bio-signal detection unit; an A/D converter for converting the amplified bio-signal into the bio-signal of a digital mode; a control unit for analyzing the bio-signal of the digital mode to determine a corresponding command of the user and then generating a determined command of the user; and a transmission unit for transmitting the determined command to the electrical device via infrared rays.
    Type: Application
    Filed: February 26, 2002
    Publication date: March 6, 2003
    Inventors: Chang Su Ryu, Yoon Seon Song, Min Joon Kim, Seung Chul Shin
  • Patent number: 6040641
    Abstract: A method for manufacturing a probabilistic switch using multiplicative noise, which can be used in a probabilistic computer is disclosed. The probabilistic switch, in which the probability varies with the initial condition and multiplicative noise intensity, is realized by applying the multiplicative noise whose intensity varies with the state of a nonlinear device to the nonlinear device. When the switch is applied to a probabilistic computer, a complicated problem can be solved rapidly in shorter time.
    Type: Grant
    Filed: June 26, 1997
    Date of Patent: March 21, 2000
    Assignee: Electronics and Telecommunications Research Institute
    Inventors: Seung-Hwan Kim, Seon-Hee Park, Chang-Su Ryu
  • Patent number: 6021346
    Abstract: The present invention to provide a method for determining positive and negative emotional states by using a relative power in a subband of a specific frequency band increases or decreases in the course of time. In order to realize the above object, the present invention determines positive and negative emotional states by using a relative power in a subband of a specific frequency band increases or decreases with the lapse of time. The present invention performs a Fourier transform for a unit time not an entire response time regarding a stimulus, and can be used in real time by using a time-frequency analysis method continuously executed with the lapse of time.
    Type: Grant
    Filed: July 23, 1998
    Date of Patent: February 1, 2000
    Assignee: Electronics and Telecommunications Research Institute
    Inventors: Chang Su Ryu, Seon Hee Park, Seung Hwan Kim
  • Patent number: 5959483
    Abstract: The present invention discloses a method for amplifying voltage to which a test will be given in Josephon junction having external current, and more particularly, to a method for amplifying voltage in Josephon junction in which the voltage in a simple Josephon junction having an external current can be amplified by inserting an external colored noise into the external current.
    Type: Grant
    Filed: November 25, 1997
    Date of Patent: September 28, 1999
    Assignee: Electronics and Telecommunications Research Institute
    Inventors: Seon Hee Park, Seung Hwan Kim, Chang Su Ryu
  • Patent number: 5857979
    Abstract: This invention provides a method for analyzing an electroencephalogram(EEG) using the correlation dimension by which the brain states can be discriminated. The method uses a time-delay determining method necessary for reconstructing vectors from the EEG time series, and a relative ratio of a correlation exponent.
    Type: Grant
    Filed: July 15, 1997
    Date of Patent: January 12, 1999
    Assignee: Electronics and Telecommunications Research Institute
    Inventors: Chang-Su Ryu, Seon-Hee Park, Seung-Hwan Kim