Patents by Inventor Yong Chang

Yong 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).

  • GLYCOSYLATION METHOD OF ALGAE OR AGRICULTURAL BY-PRODUCTS COMPRISING HIGH-PRESSURE EXTRUSION PULVERIZATION STEP
    Publication number: 20150132818
    Abstract: Disclosed is a method of saccharifying biomass, such as algae or agricultural by-products by performing a high-pressure extrusion pulverization process for the biomass, such as algae or agricultural by-products, and more particularly to a method of saccharifying biomass, which includes homogenizing and crushing algae or agricultural by-products, and extruding the algae or agricultural by-products through a micro-diameter tube to pulverize the algae or agricultural by-products. Non-biodegradable polymers, such as cellulose, which is a polysaccharide included in biomass, such as algae or agricultural by-products, hemicelluloses, starch, and complex polysaccharide, are hydrolyzed at high glycosylation efficiency through an eco-friendly pretreatment process using water.
    Type: Application
    Filed: May 2, 2012
    Publication date: May 14, 2015
    Inventors: Do-Hyung Kang, Hyeon-Yong Lee, Woon-Yong Choi, Choon-Geun Lee, Yong-Chang Seo, Ji-Seon Kim, Chi-Ho Song, Kyung-Hwan Jung, Sang-Eun Lee
  • Method for determining if refrigerant charge is sufficient and charging refrigerant
    Patent number: 9027357
    Abstract: An air-conditioner and the refrigerant charging method of the air-conditioner are disclosed. When a refrigerant amount determining mode is requested to be performed, whether or not the refrigerant amount in the air-conditioner is proper is automatically determined and a shortage amount of refrigerant can be charged. Thus, a user can easily check whether or not the refrigerant charged in the air-conditioner is sufficient or insufficient, and if the refrigerant is not sufficient, the user can automatically charge the refrigerant without having to entirely remove the refrigerant from the air-conditioner, thus increasing the user convenience and reducing time and costs.
    Type: Grant
    Filed: March 19, 2009
    Date of Patent: May 12, 2015
    Assignee: LG Electronics Inc.
    Inventors: Seung Yong Chang, Chang Min Choi
  • Method for performing cooperative function automatically and device using the same
    Patent number: 8995913
    Abstract: A method for performing a cooperative function and a device thereof are provided. It is determined whether another device is in a surrounding area of a device. When it is determined that the other device is in the surrounding area, the cooperative function is performed by the device with the other device according to a location of the other device. Accordingly, the cooperative function may be performed automatically if devices are in adjacent areas without a user's command.
    Type: Grant
    Filed: August 24, 2010
    Date of Patent: March 31, 2015
    Assignee: Samsung Electronics Co., Ltd
    Inventors: Seung-dong Yu, Woo-yong Chang, Se-jun Park, Min-jeong Moon
  • BUTTON DEVICE OF AUTOMATIC VENDING MACHINE
    Publication number: 20150041297
    Abstract: A button device includes a circuit board, a switch secured to the circuit board, a button, and a resilient member. The button includes a main body. The main body includes a pressing portion and an extending portion extending from the pressing portion. A resisting portion extends from the pressing portion and abuts the extending portion. A gap is defined between the resisting portion and the circuit board, and a resilient member is attached to the resisting portion. The button is moveable along a direction that is substantially perpendicular to the circuit board to deform the resilient member, and the resisting portion is pressed against the circuit board for preventing the button from further moving along the direction.
    Type: Application
    Filed: May 1, 2014
    Publication date: February 12, 2015
    Applicants: HON HAI PRECISION INDUSTRY CO., LTD., HONG FU JIN PRECISION INDUSTRY (WUHAN) CO., LTD.
    Inventor: YONG-CHANG FAN
  • HEAT EXCHANGING SYSTEM OF VENDING MACHINE
    Publication number: 20150034275
    Abstract: A heat exchanging system is disclosed. The heat exchanging system includes an evaporator configured for cooling an electronic device, a heater configured for heating an electronic device, and a fan located between the evaporator and the heater. When the evaporator is operated to cool air, the heater is stopped, and the cooled air flows in the electronic device under an action of the fan to cool the electronic device. When the heater is operated to heat air, the evaporator is stopped, and the heated air flows in the electronic device under the action of the fan to heat the electronic device.
    Type: Application
    Filed: August 5, 2014
    Publication date: February 5, 2015
    Inventors: XU LI, YONG-CHANG FAN, LI-FU XU
  • Method and system for providing service in a communication system
    Patent number: 8929890
    Abstract: A method for providing service in a communication system. A base station (BS) receives a request message for requesting a service from a mobile station (MS) located in a first service zone; and transmits to the MS a response message including information on a BS located in a service zone supporting the requested service. The MS transmits a request message for requesting a service to the BS located in the first service zone, and receives a response message including information on a BS located in a service zone supporting the requested service, from the BS located in the first service zone.
    Type: Grant
    Filed: July 9, 2007
    Date of Patent: January 6, 2015
    Assignee: Samsung Electronics Co., Ltd.
    Inventors: Geun-Hwi Lim, Nae-Hyun Lim, Jun-Hyung Kim, Yong Chang
  • METHOD AND APPARATUS FOR MANAGING PERSONAL HEALTH
    Publication number: 20140379368
    Abstract: A method and an apparatus for managing personal health are provided. A gateway capable of communicating with a health device and a non-health device sets up a communication link with a communication device according to a first communication protocol, and determines whether the health device. When the communication device is determined as a health device, the gateway executes a health security algorithm which provides a higher level of security than a security of a security algorithm applied to the first communication protocol, and communicates with the health device by using the health security algorithm.
    Type: Application
    Filed: December 26, 2012
    Publication date: December 25, 2014
    Inventors: Do-Young Kim, Nae-Hyun Lim, Dong-Keon Kong, Yong Chang, Hyoung-Kyu Lim
  • RESONANT CONVERTER, POWER SUPPLY AND POWER CONTROLLING METHOD THEREOF
    Publication number: 20140369083
    Abstract: A resonant converter, a power supply and a power controlling method thereof are provided. The power supply includes a resonant converter which includes a square wave generator configured to alternately turn on and off first and second switches according to a frequency to generate a square wave, a resonant wave generator configured to generate a resonant wave corresponding to the square wave and a rectifier configured to output a voltage corresponding to the resonant wave; and a controller configured to control a frequency modulation of the resonant converter, wherein the controller includes a variable switching circuit configured to increase the frequency of the resonant converter in response to the resonant converter entering a capacitive mode.
    Type: Application
    Filed: April 11, 2014
    Publication date: December 18, 2014
    Applicant: SAMSUNG ELECTRONICS CO., LTD.
    Inventors: Won-myung WOO, Jin-hyung LEE, Gil-yong CHANG
  • 3D display apparatus and 3D display method thereof
    Patent number: 8913106
    Abstract: A three-dimensional (3D) display apparatus and method controlling thereof are provided. The 3D display apparatus includes: a reception unit which receives a 3D image signal from another 3D display apparatus; a conversion unit which converts a disparity of the 3D image signal based on transmitter information of the other 3D display apparatus and receiver information of the 3D display apparatus, and generates an output 3D image signal having depth information which is proportional to depth information of the 3D image signal; and a display unit which outputs the output 3D image signal.
    Type: Grant
    Filed: December 6, 2011
    Date of Patent: December 16, 2014
    Assignee: Samsung Electronics Co., Ltd.
    Inventors: Jin-sung Lee, Ju-yong Chang, Jong-sul Min, Sung-jin Kim
  • METHOD AND APPARATUS FOR CONTROLLING POWER OF TERMINAL
    Publication number: 20140364175
    Abstract: A terminal communicating with at least one wireless communication device determines whether a first data is received from the at least one wireless communication device in a first mode, in which power is supplied to a display portion, determines whether a second data is received during a first time period from the time when the first data is received, and switches to a second mode in which the power supplied to the display portion is blocked according to whether the second data is received.
    Type: Application
    Filed: December 20, 2012
    Publication date: December 11, 2014
    Inventors: Do-Young Kim, Dong-Keon Kong, Hyeon-Cheol Pu, Nae-Hyun Lim, Hyoung-Kyu Lim, Yong Chang
  • ANALYZING SYSTEM AND METHOD FOR POWER DATA
    Publication number: 20140354447
    Abstract: An analyzing system includes a retrieving module, a filtering module, an extracting module, a display module, and a storing module. The retrieving module is used to retrieve a data package. The filtering module is used to filter a power data parameter from the data package. The extracting module is used to extract a power data parameter value from the power data parameter. The display module is used to display the power data parameter value. The storing module is used to store the power data parameter value. The disclosure further offers an analyzing method.
    Type: Application
    Filed: January 14, 2014
    Publication date: December 4, 2014
    Applicants: HON HAI PRECISION INDUSTRY CO., LTD., HONG FU JIN PRECISION INDUSTRY (WUHAN) CO., LTD.
    Inventors: YONG-CHANG FAN, LI-FU XU
  • Control device and method thereof
    Patent number: 8903563
    Abstract: A control device which controls the power of a plurality of apparatuses in a home network, and a method thereof are provided. The control device includes an input unit which receives a power off command, and a control unit which concurrently turns off apparatuses which are currently turned on among the plurality of apparatuses in response to the power off command received by the input unit. Therefore, it is possible for a user to concurrently turn off currently running apparatuses so user convenience can increase.
    Type: Grant
    Filed: November 11, 2008
    Date of Patent: December 2, 2014
    Assignee: Samsung Electronics Co., Ltd.
    Inventors: Eun-hee Park, Seung-dong Yu, Woo-yong Chang, Ju-il Eom, Chang-hwan Hwang
  • METHOD AND DEVICE FOR PREVENTING ACCESS TO ADMINISTRATIVE PRIVILEGE
    Publication number: 20140344562
    Abstract: A method and a device for preventing access to an administrative privilege are provided. The method includes acquiring a flash memory identifier from a flash memory, starting kernel loading, decoding an encrypted administrative privilege granting code using the flash memory identifier, and completing booting when the decoding succeeds. According to an embodiment of the present disclosure, the code for accessing the administrative privilege is encrypted using the identifier of the flash memory so that the unique password code can be loaded for each device, thereby enhancing the system security.
    Type: Application
    Filed: May 20, 2014
    Publication date: November 20, 2014
    Applicant: Samsung Electronics Co., Ltd.
    Inventors: Inkyo KIM, Sangho LEE, Doyoung KIM, Eunhui BAE, Kyunggeun LEE, Yong CHANG
  • Light source assembly and backlight assembly having the same
    Patent number: 8888350
    Abstract: A light source assembly includes a first substrate, a plurality of first light source units mounted on the first substrate and spaced apart from each other by a first distance, a second substrate and a plurality of second light source units mounted on the second substrate and spaced apart from each other by a second distance, each of the second light source units being disposed between the first light source units adjacent to each other.
    Type: Grant
    Filed: September 23, 2011
    Date of Patent: November 18, 2014
    Assignee: Samsung Display Co., Ltd.
    Inventor: Yong-Chang Park
  • Backlight unit and method for controlling LED
    Patent number: 8890443
    Abstract: A backlight unit is provided, which includes a light-emitting diode LED, an LED driving unit which drives the LED, a control unit which measures a temperature of the LED driving unit, and, if the temperature exceeds a preset threshold temperature, interrupts an operation of the LED driving unit, and a threshold temperature adjustment unit which changes the preset threshold temperature based on a limit temperature of a circuit element included in the LED driving unit.
    Type: Grant
    Filed: February 17, 2012
    Date of Patent: November 18, 2014
    Assignee: Samsung Electronics Co., Ltd.
    Inventors: Jeong-il Kang, Ju-taek Lee, Gil-yong Chang
  • Method and apparatus for providing standby power for visual display device
    Patent number: 8872469
    Abstract: Provided are an apparatus and method thereof for providing standby power to a visual display, the apparatus including: a light collection unit which is operable to receive light and output a charging current; a battery which is operable to receive the charging current and providing the standby power to the visual display; and a controller which determines whether the battery has a voltage below a predetermined value, wherein if the voltage is below the predetermined value, the controller controls the battery to receive the charging current from the light collection unit, and wherein if the voltage is not below the predetermined value, the controller controls the battery to provide the standby power to the visual display.
    Type: Grant
    Filed: February 24, 2010
    Date of Patent: October 28, 2014
    Assignee: Samsung Electronics Co., Ltd.
    Inventors: Sung-yong Joo, Gil-yong Chang, Jin-hyung Lee
  • APPARATUS COMPRISING MAGNETICALLY SOFT UNDERLAYER
    Publication number: 20140313615
    Abstract: Provided herein is an apparatus, including a magnetically soft underlayer (SUL); an interlayer stack overlying the SUL, wherein the interlayer stack comprises a seed layer of an fcc material; and a perpendicular magnetic recording layer overlying the interlayer stack, wherein a thickness of the SUL in combination with a distance of the SUL from the perpendicular recording layer is sufficient to orient a total magnetic field corresponding to a magnetic transducer head at an angle of about 45°.
    Type: Application
    Filed: March 28, 2014
    Publication date: October 23, 2014
    Applicant: SEAGATE TECHNOLOGY LLC
    Inventors: Thomas P. Nolan, Li Tang, Yong-Chang Feng, Zhong (Stella) Wu, Samuel D. Harkness, Hans J. Richter, Youfeng Zheng
  • METHOD AND SYSTEM FOR TRANSMITTING/RECEIVING NEIGHBOR BASE-STATION ADVERTISEMENT MESSAGE IN BROADBAND WIRELESS ACCESS SYSTEM
    Publication number: 20140308950
    Abstract: Methods and apparatuses are provided for receiving neighbor BS information by a mobile station in a wireless communication system. The mobile station receives a neighbor BS information message. It is determined whether operator ID information identifying a network operator of a neighbor BS is not included in the neighbor BS information message. Operator information related to the neighbor BS is identified as operator information related to a serving BS, if it is determined that the operator ID information is not included in the neighbor BS information message.
    Type: Application
    Filed: June 24, 2014
    Publication date: October 16, 2014
    Inventors: Jun-Hyung KIM, Hong-Sung Chang, Yong Chang, Geun-Hwi Lim, Jung-Won Kim
  • Sheet of nail appliques
    Patent number: D715000
    Type: Grant
    Filed: May 15, 2013
    Date of Patent: October 7, 2014
    Assignee: KMC EXIM Corp.
    Inventor: Sung Yong Chang
  • Device for applying nail decals
    Patent number: D715001
    Type: Grant
    Filed: July 31, 2013
    Date of Patent: October 7, 2014
    Assignee: KMC EXIM Corp.
    Inventors: Margaret Pak, Sung Yong Chang