Patents by Inventor Won Joo

Won Joo 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: 8901498
    Abstract: A unit pixel of a depth sensor includes a light-receiver configured to perform photoelectric conversion of an incident light to output an electrical signal and at least two sensors adjacent to the light-receiver to receive the electrical signal from the light-receiver such that a line connecting the sensors forms an angle greater than zero degrees with respect to a first line, the first line passing through a center of the light-receiver in a horizontal direction.
    Type: Grant
    Filed: May 4, 2012
    Date of Patent: December 2, 2014
    Assignee: Samsung Electronics Co., Ltd.
    Inventors: Hyoung-Soo Ko, Shin-Wook Yi, Won-Joo Kim, Ju-Hwan Jung
  • Publication number: 20140305143
    Abstract: The present disclosure relates to a device and method for detecting an abnormality in a refrigeration cycle of a refrigerator that is capable of detecting whether connection pipes disposed between a refrigerant passage valve and a freezer evaporator and between the refrigerant passage valve and a cold room evaporator are blocked and switched.
    Type: Application
    Filed: April 3, 2013
    Publication date: October 16, 2014
    Inventor: Won Joo Kwon
  • Publication number: 20140269757
    Abstract: An apparatus and method for allowing a plurality of playback devices to stream content of a master device simultaneously is provided. When the master device selects one of the playback devices as a reference device and multicasts a synchronization packet to the playback devices, the playback devices determine a synchronization time by comparing their own synchronization packet reception time with a synchronization packet reception time of the reference device. When the master device streams content, into which a time stamp is inserted based on the time of the reference device, the playback devices play the content based on the determined synchronization time. Therefore, even when the playback devices have different network latencies from the master device, the playback devices may accurately perform synchronized content playback.
    Type: Application
    Filed: March 12, 2014
    Publication date: September 18, 2014
    Applicant: Samsung Electronics Co., Ltd.
    Inventors: Hyun-cheol PARK, Won-joo PARK, Jae-hoon KO, Woo-jin PARK, Hun-je YEON, Jin-wook LEE
  • Patent number: 8830297
    Abstract: An Open Internet Protocol Television (IPTV) platform is provided. By providing remote medical services to users in the Open IPTV environment using a remote medical service providing apparatus including: an application programming interface (API) calling unit to call, when receiving a request for receiving a remote medical service from a counselor's terminal, an API of an Open Internet Protocol Television (IPTV) platform; and a service provider to provide the remote medical service to a user through the API, it is possible to provide remote medical service operators with environments where they can develop and share various remote medical to services and content.
    Type: Grant
    Filed: September 8, 2010
    Date of Patent: September 9, 2014
    Assignee: Electronics and Telecommunications Research Institute
    Inventors: Eung-Ha Kim, Sun-Joong Kim, Won-Joo Park, Kee-Seong Cho, Won Ryu
  • Publication number: 20140226553
    Abstract: A terminal apparatus and a method for time synchronization are provided. The method includes setting a reference time for a time synchronization with another terminal apparatus, transmitting a sync signal comprising the set reference time to the other terminal apparatus, and if a response signal to the sync signal is received from the other terminal apparatus, performing the time synchronization with the other terminal apparatus based on a transmission time of the sync signal and a reception time of the response signal. Therefore, a terminal apparatus further simply and rapidly performs a time synchronization with another terminal apparatus.
    Type: Application
    Filed: February 6, 2014
    Publication date: August 14, 2014
    Applicant: Samsung Electronics Co., Ltd.
    Inventors: Jae-hoon KO, Woo-jin PARK, Won-joo PARK, Hyun-cheol PARK, Hun-je YEON, Si-jun LEE, Jin-wook LEE
  • Publication number: 20140182569
    Abstract: An oil filter system for a vehicle is provided at a cylinder block of an engine and collects engine oil from blow-by gas generated in a crank case. The oil filter system may include a blow-by path configured to recirculate the blow-by gas so that the blow-by gas generated in the crank case is combusted together with a fuel-air mixture, a filter case formed between the crank case and the blow-by path, filters disposed in the filter case to collect the engine oil contained in the blow-by gas, and an oil pan mounted in the cylinder block to collect the engine oil collected at the filters, wherein the filters collect the engine oil in a forward direction flow and a reverse direction flow of the blow-by gas.
    Type: Application
    Filed: December 6, 2013
    Publication date: July 3, 2014
    Applicant: Hyundai Motor Company
    Inventors: Yun Sung HWANG, Won Joo ROH, Bong Whoa JEONG
  • Publication number: 20140182568
    Abstract: An oil filter system for a vehicle may provided at a cylinder block of an engine for collecting engine oil from a blow-by gas generated in a crank case. The oil filter system may include a blow-by path to recirculate the blow-by gas so that the blow-by gas generated in the crank case is combusted together with a fuel-air mixture, a filter case that is a space formed between the crank case and the blow-by path, a filter partition disposed to divide the filter case into two spaces, and configured to collect the engine oil contained in the blow-by gas, and an oil pan mounted in the cylinder block for collecting the engine oil that have been collected by the filter partition. The filter partition may collect the engine oil in a forward direction flow and a reverse direction flow of the blow-by gas.
    Type: Application
    Filed: December 6, 2013
    Publication date: July 3, 2014
    Applicant: Hyundai Motor Company
    Inventors: Yun Sung HWANG, Kyu Sup Kim, Won Joo Roh, Bong Whoa Jeong
  • Publication number: 20140157805
    Abstract: A refrigerator having a dew prevention and/or control device and a method for preventing the formation of dew in and/or on the refrigerator includes a compressor adapted to compress a refrigerant, a condenser adapted to condense the refrigerant from the compressor, an evaporator adapted to cool air existing therearound by evaporating the refrigerant that passes through the condenser, a pipe between the condenser and the evaporator, configured to pass through the refrigerator body, humidity sensors and/or detectors configured to determine a humidity around the refrigerator, and a controller adapted to vary rotational speed of the fan in accordance with the humidity determined by the humidity sensors and/or detectors, thereby efficiently preventing the formation of dew on or in the refrigerator.
    Type: Application
    Filed: November 8, 2013
    Publication date: June 12, 2014
    Applicant: Dongbn Daewoo Electronics Corporation
    Inventor: Won Joo KWON
  • Publication number: 20140158937
    Abstract: A process of synthesizing nanocrystals, the process including contacting a first precursor, a ligand compound, and a second precursor in a solvent having a boiling point of less than or equal to about 150° C. and a polarity index of less than or equal to 5, and performing a thermal decomposition reaction between the first precursor and the second precursor at a higher pressure than atmospheric pressure and at a higher temperature than a boiling point of the solvent, wherein at least one of the first precursor and the second precursor is a metal-containing precursor.
    Type: Application
    Filed: May 29, 2013
    Publication date: June 12, 2014
    Inventors: Eun Joo JANG, Hyo Sook JANG, Won Joo LEE
  • Patent number: 8742806
    Abstract: A method of controlling a power control circuit includes enabling a power cutoff signal when a delay locking operation of a Delay Locked Loop (DLL) circuit is completed, disabling the power cutoff signal for a predetermined time, and detecting a phase difference between a reference clock and a feedback clock to re-determine, on the basis of the detection result, whether or not to enable the power cutoff signal.
    Type: Grant
    Filed: April 9, 2012
    Date of Patent: June 3, 2014
    Assignee: SK hynix Inc.
    Inventors: Won Joo Yun, Hyun Woo Lee, Dong Suk Shin
  • Publication number: 20140131740
    Abstract: A light emitting device including: a blue light source; a phosphor; and a semiconductor nanocrystal, and emits white light having a R1-R8 average color rendering index (“CRI”) of greater than or equal to about 90, and a R9 red color rendering index (R9) of greater than or equal to about 90.
    Type: Application
    Filed: October 22, 2013
    Publication date: May 15, 2014
    Applicant: Samsung Electronics Co., Ltd.
    Inventors: Hyun A. KANG, Oul CHO, Eun Joo JANG, Hyo Sook JANG, Shin Ae JUN, Soo Kyung KWON, Won Joo LEE
  • Publication number: 20140117292
    Abstract: A nanocrystal including a core including a Group III element and a Group V element, and a monolayer shell on the surface of the core, the shell including a compound of the formula ZnSexS(1-x), wherein 0?x?1, and wherein an average mole ratio of Se:S in the monolayer shell ranges from about 2:1 to about 20:1.
    Type: Application
    Filed: September 27, 2013
    Publication date: May 1, 2014
    Applicant: Samsung Electronics Co., Ltd.
    Inventors: Shin Ae JUN, Eun Joo JANG, Soo Kyung KWON, Taek Hoon KIM, Won Joo LEE
  • Publication number: 20140116667
    Abstract: A heat exchanger is provided capable of suppressing formation of frost, thereby achieving enhanced heat exchange efficiency refrigerator. The heat exchanger includes refrigerant tubes vertically spaced apart from one another, and heat exchanging fins spaced apart from another in a longitudinal direction of the refrigerant tubes while being coupled to surfaces of the refrigerant tubes. Each heat exchanging fin includes fitting slots formed at one lateral end of the heat exchanging fin and vertically arranged to receive a plurality of refrigerant tubes, and moisture guide valleys extending vertically to downwardly guide moisture on the heat exchanging fin. Each moisture guide valley includes a first moisture guide valley arranged along a virtual line extending through a boundary between a curved portion of the corresponding fitting slot and each straight portion of the fitting slot, and a second moisture guide valley to guide moisture to the first moisture guide valley.
    Type: Application
    Filed: October 29, 2013
    Publication date: May 1, 2014
    Applicant: SAMSUNG ELECTRONICS CO., LTD.
    Inventors: Yong Hwa CHOI, Gaku HAYASE, Young Min KIM, Won Joo LEE
  • Publication number: 20140111423
    Abstract: A mobile system may comprise a three-dimensional (3D) image sensor on a first surface of the mobile system configured to perform a first sensing to detect proximity of a subject and a second sensing to recognize a gesture of the subject by acquiring distance information for the subject; and/or a display device on the first surface of the mobile system to display results of the first sensing and the second sensing. A mobile system may comprise a light source unit; a plurality of depth pixels; and/or a plurality of color pixels. The light source unit, the plurality of depth pixels, or the plurality of color pixels may be activated based on an operation mode of the mobile system.
    Type: Application
    Filed: October 23, 2013
    Publication date: April 24, 2014
    Inventors: Yoon-Dong PARK, Won-Joo KIM, Young-Gu JIN, Dong-Wook KWON, Kyung-Il KIM, Min-Ho KIM, Gi-Sang LEE, Sang-Bo LEE, Jin-Kyung LEE, Jin-Wuk CHOI
  • Publication number: 20140083129
    Abstract: The present disclosure relates to a refrigerator having a temperature changing room, including a body including a freezer and a separate cold room; doors adapted to open and close the freezer and the cold room; and the temperature changing room in the cold room to maintain a low temperature state to keep an item stored therein fresh, wherein a rear surface of the temperature changing room communicates with a rear surface of an inner case of the body in contact with the temperature changing room, and the temperature changing room has a cool air supplier adapted to supply cool air directly to an interior thereof from an evaporator behind the rear surface of the inner case of the body through a communicating structure thereof.
    Type: Application
    Filed: April 3, 2013
    Publication date: March 27, 2014
    Inventors: Jae Hwan Yeom, Won Joo Kwon, Jin Hwan Kim
  • Publication number: 20140085199
    Abstract: A method comprising measuring a change of capacitance associated with a user input approaching a display of an electronic device, determining whether the user input is within a proximity range of the display of the electronic device based on the change of capacitance, displaying a Graphical User Interface (GUI) object at a location of the display of the electronic device according to whether the user input is within the proximity range of the display of the electronic device, determining whether the user input is within a touch range of the display of the electronic device based on the change of capacitance, and performing a function at the location according to whether the user input is within the touch range of the display of the electronic device.
    Type: Application
    Filed: December 2, 2013
    Publication date: March 27, 2014
    Applicant: Samsung Electronics Co., Ltd.
    Inventors: Jin Woo PARK, Won Joo JI
  • Patent number: 8683385
    Abstract: A mobile terminal and a method of displaying a menu thereof are provided. The method includes displaying a list of upper-level menus in an order on a display screen, displaying a first upper-level menu at an upper end of the display panel, a second upper-level menu that is next to the first upper-level menu in the order at a lower end of the display screen, and lower-level menus of the first upper-level menu in a list between the first upper-level menu and the second upper-level menu in response to selection of the first upper-level menu from the list of upper-level menus, and executing a selected lower-level menu in response to selection of one of the lower-level menus.
    Type: Grant
    Filed: October 2, 2008
    Date of Patent: March 25, 2014
    Assignee: Samsung Electronics Co., Ltd.
    Inventors: Won Joo Park, Hyung Min Yook, Min Suk Jang, Mi Jung Park, Keun Young Kim
  • Patent number: 8643623
    Abstract: A portable terminal including a touch screen and method for displaying a cursor thereof are provided. The method includes determining whether a capacitance is equal to or greater than a first critical value and is less than a second critical value, if the change of the capacitance is sensed in the touch screen, displaying a cursor in an area where the change of the capacitance is sensed, if the capacitance is equal to or greater than the first critical value and is less than the second critical value, and performing a function corresponding to the area where the cursor is displayed, if the capacitance sensed in the area where the cursor is displayed is equal to or greater than the second critical value.
    Type: Grant
    Filed: April 2, 2013
    Date of Patent: February 4, 2014
    Assignee: Samsung Electronics Co., Ltd.
    Inventors: Jin Woo Park, Won Joo Ji
  • Publication number: 20140015932
    Abstract: A 3D image sensor includes a first color filter configured to pass wavelengths of a first region of visible light and wavelengths of infrared light; a second color filter configured to pass wavelengths of a second region of visible light and the wavelengths of infrared light; and an infrared sensor configured to detect the wavelengths of infrared light passed through the first color filter.
    Type: Application
    Filed: July 12, 2013
    Publication date: January 16, 2014
    Inventors: Won Joo KIM, Doo Cheol PARK, Yoon Dong PARK, Jung Bin YUN, Kwang Min LEE
  • Patent number: 8624665
    Abstract: Provided is a method of operating a semiconductor device, wherein an operating mode is set by adjusting timing of a voltage pulse or by adjusting a voltage level of the voltage pulse.
    Type: Grant
    Filed: July 30, 2009
    Date of Patent: January 7, 2014
    Assignee: Samsung Electronics Co., Ltd.
    Inventors: Sang-moo Choi, Won-joo Kim, Tae-hee Lee, Dae-kil Cha