Patents by Inventor Jin Ho Chang

Jin Ho Chang 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: 9299174
    Abstract: Provided is an apparatus of determining the number of synthetic beams, comprising: a motion measurement unit which measures the degree of motion in an output beam-forming image; a synthetic beam number determination unit which determines the optimum number of synthetic beams based on the measured degree of motion in case of applying the synthetic aperture beam forming; and a display unit which displays the number of synthetic beams determined by the synthetic beam number determination unit. A system using synthetic aperture beam forming detects motion in an image and displays a degree of the motion in various manners, and thus, a user is allowed to actively cope with the motion by adjusting the number of synthetic beams, or the system is allowed to immediately change the number of synthetic beams with reference to data stored in advance.
    Type: Grant
    Filed: January 13, 2012
    Date of Patent: March 29, 2016
    Assignee: INDUSTRY-UNIVERSITY COOPERATION FOUNDATION SOGANG UNIVERSITY
    Inventors: Yang Mo Yoo, Tai-Kyong Song, Jin Ho Chang, Jeong Cho, Jong Ho Park
  • Publication number: 20160010267
    Abstract: A washing machine and a method of controlling the washing machine are provided. In the washing machine and the method of controlling the washing machine, a liquid detergent is automatically supplied into a washing tub, thereby improving user convenience. In addition, in the washing machine and the method of controlling the washing machine, a liquid detergent is supplied into the washing tub by water circulated by a circulation unit. Thus, no liquid detergent remains in a liquid detergent supply path, and the liquid detergent supply path can be prevented from being blocked due to the solidification of a liquid detergent.
    Type: Application
    Filed: September 21, 2015
    Publication date: January 14, 2016
    Inventors: Kyeong Hwan KIM, Il Hyeon JO, Jin Ho CHANG
  • Publication number: 20150343079
    Abstract: The present invention relates to an ultrasound contrast agent with drug-encapsulating nanoparticles and a method for preparing the same that increase drug delivery capabilities and drug penetration effects. According to the present invention, exposure to the focussed ultrasound triggers the cavitation of an ultrasound contrast agent, resulting in the local release of drug-encapsulating nanoparticles, which are conjugated onto the surface of the ultrasound contrast agent, and enhanced penetration of nanoparticles and drug delivery capabilities. Moreover, the present invention simultaneously and selectively diagnoses and treats cancers by conjugation cancer-targeting ligands on the surface of nanoparticles.
    Type: Application
    Filed: September 27, 2013
    Publication date: December 3, 2015
    Inventors: Hyuncheol Kim, Hyungwon Moon, Tai-Kyong Song, Jin Ho Chang, Yang Mo Yoo
  • Publication number: 20150221081
    Abstract: Provided is a method for discriminating a tissue of interest and a method for generating photo-acoustic images to detect a calcified tissue, which includes: detecting an intensity of each pixel of a tissue-of-interest image obtained for each wavelength; matching an index corresponding to an image, which has a greatest intensity corresponding to each pixel, to each pixel; generating a signal weight corresponding to each pixel in consideration of a wavelength absorbed by the tissue of interest; and applying the generated signal weight of each pixel to each pixel of an image obtained with a wavelength, which is the most absorbed by the tissue of interest, to generate an image in which a background is discriminated. A photo-acoustic image obtained while changing an optical wavelength may be analyzed to endow an index to each pixel of the image, and a background signal and a signal to be obtained may be discriminated by using the endowed index.
    Type: Application
    Filed: December 12, 2012
    Publication date: August 6, 2015
    Inventors: Jin Ho Chang, Jeeun Kang, Tai-Kyong Song, Yang Mo Yoo
  • Patent number: 8887536
    Abstract: Disclosed are a fragrance supply apparatus and a washing/drying machine having the same, wherein the washing/drying machine comprises a fragrance supply apparatus installed in a washing/drying machine body for collecting clothes to be treated such that a fragrance solution contained therein is uniformly effused by a pressure difference to be supplied into the clothes within the washing/drying machine body, whereby the fragrance solution can be supplied at a desired time so as to prevent an unnecessary consumption thereof, and also prevent an occurrence of a deviation of an effused amount due to an amount of the fragrance solution contained in the fragrance supply apparatus.
    Type: Grant
    Filed: September 8, 2008
    Date of Patent: November 18, 2014
    Assignee: LG Electronics Inc.
    Inventors: Kyeong-Hwan Kim, Jin-Ho Chang, Kyung-Chul Woo
  • Publication number: 20140316275
    Abstract: A high frequency ultrasonic transducer may include a plurality of adjacent ultrasonic transducer elements. The adjacent transducer elements may be sized and configured so as to resonate at a frequency that is at least 15 MHz. The adjacent transducer elements may collectively form an aperture that is substantially convex along a lateral dimension spanning the cascaded width of the adjacent transducer elements. The aperture may be substantially concave along an elevation spanning the height of each of the transducer elements. The ultrasonic transducer and an associated transmitter system may be configured so as to enable ultrasound that is radiated from the plurality of the transducer elements to be focused on and to scan across locations that are no more than 30 millimeters from the aperture and that span across a field of view of at least 50 degrees without movement of the ultrasonic transducer or tissue during the scanning.
    Type: Application
    Filed: July 3, 2014
    Publication date: October 23, 2014
    Applicant: UNIVERSITY OF SOUTHERN CALIFORNIA
    Inventors: Hyung Ham Kim, Jin Ho Chang, K. Kirk Shung
  • Patent number: 8739578
    Abstract: A washing machine and a method of controlling the washing machine are provided. In the washing machine and the method of controlling the washing machine, a liquid detergent is automatically supplied into a washing tub, thereby improving user convenience. In addition, in the washing machine and the method of controlling the washing machine, a liquid detergent is supplied into the washing tub by water supplied by a water supply unit. Thus, no liquid detergent remains in a liquid detergent supply path, and the liquid detergent supply path can be prevented from being blocked due to the solidification of a liquid detergent.
    Type: Grant
    Filed: March 29, 2008
    Date of Patent: June 3, 2014
    Assignee: LG Electronics Inc.
    Inventors: Kyeong Hwan Kim, Il Hyeon Jo, Jin Ho Chang
  • Publication number: 20140071792
    Abstract: The present disclosure relates to a method for generating a synthetic image. In the method, image data is generated using a receiving dynamic beamforming method, image data is generated using a synthetic aperture beamforming method, and the image data generated using the receiving dynamic beamforming method and the image data generated using the synthetic aperture beamforming method are synthesized with being applied with weighting factors according to advancing distances of ultrasonic waves. By using a zone blending method, in which image data according to a receiving dynamic beamforming method is mainly used for an ultrasonic image having a predetermined depth or less, and image data according to a synthetic aperture beamforming method is mainly used for an ultrasonic image having any other depth, a grating lobe and distortion of image brightness are eliminated.
    Type: Application
    Filed: November 8, 2011
    Publication date: March 13, 2014
    Applicant: Industrial Cooperation Sogang University
    Inventors: Yang Mo Yoo, Tai-Kyong Song, Jin Ho Chang, Jeong Cho, Jong Ho Park
  • Publication number: 20130335423
    Abstract: Provided is an apparatus of determining the number of synthetic beams, comprising: a motion measurement unit which measures the degree of motion in an output beam-forming image; a synthetic beam number determination unit which determines the optimum number of synthetic beams based on the measured degree of motion in case of applying the synthetic aperture beam forming; and a display unit which displays the number of synthetic beams determined by the synthetic beam number determination unit. A system using synthetic aperture beam forming detects motion in an image and displays a degree of the motion in various manners, and thus, a user is allowed to actively cope with the motion by adjusting the number of synthetic beams, or the system is allowed to immediately change the number of synthetic beams with reference to data stored in advance.
    Type: Application
    Filed: January 13, 2012
    Publication date: December 19, 2013
    Inventors: Yang Mo Yoo, Tai-Kyong Song, Jin Ho Chang, Jeong Cho, Jong Ho Park
  • Publication number: 20130144170
    Abstract: Provided is a method of producing an ultrasound image using a concave array, which includes locating a concave array having at least one ultrasound transducer on a cornea, generating an ultrasound image by using an ultrasound transmitted or received through the concave array, and displaying the generated ultrasound image, wherein a focusing point of the concave array is on a vitreous humor, thereby minimizing ultrasound refraction, minimizing a loss of ultrasound energy, and resultantly makes a posterior segment into an ultrasound image.
    Type: Application
    Filed: July 7, 2011
    Publication date: June 6, 2013
    Inventors: Jin Ho Chang, Tai-Kyong Song
  • Patent number: 8448478
    Abstract: Disclosed is the washing/drying machine including a fragrance supplying means for supplying fragrance, and a heat supplying means for supplying heat to promote evaporation of a fragrance source stored in the fragrance supplying means. The washing/drying machine uses heat supplied by the heat supplying means so as to promote evaporation of a fragrance source in the fragrance supplying means, thereby increasing efficiency in fragrance supply.
    Type: Grant
    Filed: December 11, 2007
    Date of Patent: May 28, 2013
    Assignee: LG Electronics Inc.
    Inventors: Myong-Hun Im, Jin-Ho Chang, Kyung-Chul Woo, Kyeong-Hwan Kim
  • Publication number: 20120213035
    Abstract: The present invention relates to a board for a synthetic aperture ultrasound imaging apparatus which includes an analog to digital converter converting M analog channel data into M digital channel data; a partial beamformer unit including N partial beamformers generating N partial beams from the M digital channel data; and an adder adding a partial beam stored in a k-th synthetic aperture memory among a plurality of synthetic aperture memories and a partial beam outputted from a k+1-th partial beamformer to input the added partial beam to a k+1-th synthetic aperture memory. The present invention can facilitate an increase in the number of channels by adding a board without transmitting a lot of channel data between boards by exchanging and synthesizing a part of the scanline data between the boards at rear ends of the boards.
    Type: Application
    Filed: November 10, 2011
    Publication date: August 23, 2012
    Applicant: Industrial Cooporation Foundation Sogang University
    Inventors: Yang Mo YOO, Tai-Kyong SONG, Jin Ho CHANG, Jeong CHO, Jong Ho PARK
  • Publication number: 20120179043
    Abstract: A diagnosis system, a medical image system, and a method of displaying a diagnosis image are provided. The diagnosis system includes a probe including a plurality of sub-arrays, each of the sub-arrays including at least one line of array transducers, the array transducers being configured to transmit and receive signals to and from a subject being diagnosed, and a hybrid beamformer configured to perform analog beamforming in a direction in which the sub-arrays are arranged, and perform digital beamforming in a direction perpendicular to the direction in which the sub-arrays are arranged.
    Type: Application
    Filed: January 6, 2012
    Publication date: July 12, 2012
    Applicants: Industry-University Cooperation Foundation Sogang University, Samsung Electronics Co., Ltd.
    Inventors: Bae-hyung KIM, Jin-ho CHANG, Tai-kyong SONG, Kyung-il CHO, Dong-wook KIM, Jong-keun SONG, Yang-mo YOO
  • Publication number: 20120136253
    Abstract: An ultrasound diagnostic apparatus to improve picture quality of images by automatically adjusting image parameters, and a control method thereof are provided. The ultrasound diagnostic apparatus includes an image signal processor to perform envelope detection processing on ultrasound image data, and an image parameter processor to calculate a Time Gain Compensation (TGC) parameter from the envelope detection processed ultrasound image data, adjust the envelope detection processed ultrasound image data based on the TGC parameter, and calculate a Dynamic Range (DR) parameter from the envelope detection processed ultrasound image data adjusted based on the TGC parameter to apply the DR parameter to the envelope detection processed ultrasound image data.
    Type: Application
    Filed: November 23, 2011
    Publication date: May 31, 2012
    Applicants: INDUSTRY-UNIVERSITY COOPERATION FOUNDATION SOGANG UNIVERSITY, SAMSUNG ELECTRONICS CO., LTD.
    Inventors: Kang Sik KIM, Tai Kyong SONG, Jin Ho CHANG, Yang Mo YOO, Jae Hee SONG, Seong Min JIN, Choye KIM
  • Patent number: 8006522
    Abstract: A washing machine is provided. The washing machine includes a support frame, which supports the main housing of the washing machine, and a liquid detergent container, which is disposed in the support frame and contains a liquid detergent therein. Therefore, the washing machine can improve the efficiency of the use of a liquid detergent.
    Type: Grant
    Filed: February 26, 2008
    Date of Patent: August 30, 2011
    Assignee: LG Electronics Inc.
    Inventors: Kyeong Hwan Kim, Il Hyeon Jo, Jin Ho Chang
  • Patent number: 7980102
    Abstract: Disclosed is a washing machine, which prevents solidification of liquid detergent by rapidly recovering the liquid detergent left in a liquid detergent supply passage and a liquid detergent supply pump by forming a negative pressure differential by use of the liquid detergent supply pump for a set period of time after the supply of liquid detergent is finished.
    Type: Grant
    Filed: March 19, 2008
    Date of Patent: July 19, 2011
    Assignee: LG Electronics Inc.
    Inventors: Kyeong Hwan Kim, Il Hyeon Jo, Jin Ho Chang, Woo Young Kim
  • Publication number: 20110138863
    Abstract: Disclosed are a fragrance supply apparatus and a washing/drying machine having the same, wherein the washing/drying machine comprises a fragrance supply apparatus installed in a washing/drying machine body for collecting clothes to be treated such that a fragrance solution contained therein is uniformly effused by a pressure difference to be supplied into the clothes within the washing/drying machine body, whereby the fragrance solution can be supplied at a desired time so as to prevent an unnecessary consumption thereof, and also prevent an occurrence of a deviation of an effused amount due to an amount of the fragrance solution contained in the fragrance supply apparatus.
    Type: Application
    Filed: September 8, 2008
    Publication date: June 16, 2011
    Inventors: Kyeong-Hwan Kim, Jin-Ho Chang, Kyung-Chul Woo
  • Patent number: 7930510
    Abstract: Provided is a method of dynamically reallocating a thread stack in a multi-threaded operating system, and more particularly, a method of dynamically allocating a thread stack of a multi-threaded operating system in an embedded system for wireless sensor nodes. The method includes the steps of: measuring sizes of data and non-data sections of a stack with respect to each thread; determining a new size of the non-data section of each stack based on the size of the data section of the stack measured with respect to each thread; and adjusting the size of the non-data section of each stack to the determined new size. According to the method, even without the source code analysis, an amount of memory spaces to be used can be reduced compared to that of a conventional static stack allocation method.
    Type: Grant
    Filed: February 14, 2008
    Date of Patent: April 19, 2011
    Assignee: Electronics and Telecommunications Research Institute
    Inventors: Sang Cheol Kim, Hae Yong Kim, Chang Min Shin, Jin Won Kim, Mi Sun Yu, Jin Ho Chang, Pyeong Soo Mah
  • Patent number: 7921493
    Abstract: Disclosed is a washing machine, which can automatically supply a liquid detergent into a washing tub and automatically clean inner flow passages through which the liquid detergent has flown with a cleaning solution. A liquid detergent supply mechanism supplies at least one kind of liquid detergent to the washing tub, and the inner flow passages of the liquid detergent supply mechanism through which the liquid detergent has flown are cleaned with the cleaning solution supplied from outside.
    Type: Grant
    Filed: March 28, 2008
    Date of Patent: April 12, 2011
    Assignee: LG Electronics Inc.
    Inventors: Kyeong Hwan Kim, Il Hyeon Jo, Jin Ho Chang
  • Patent number: 7850627
    Abstract: An exercise machine is provided. The exercise machine includes a support defining a longitudinal direction and a transverse direction, a first motion unit coupled to the support to provide a combined translational and pivotal movement of the first motion unit in the transverse direction, a second motion unit coupled to the first motion unit to provide one of a translational movement and a pivotal movement of the second motion unit in the longitudinal direction, and a driving source configured to impart movement to the first and second motion units.
    Type: Grant
    Filed: July 16, 2009
    Date of Patent: December 14, 2010
    Assignee: LG Electronics Inc.
    Inventors: Ki Chul Woo, Jin Ho Chang, Seon Woong Hwang, Hyung Kyu Youk