Patents by Inventor Jae-Hyuk Oh
Jae-Hyuk Oh 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).
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Publication number: 20240118543Abstract: A picture generation apparatus and a control method thereof are disclosed. An embodiment of the present disclosure provides a picture generation apparatus including a light source; a Spatial Light Modulator (SLM) configured to output an image using light transmitted from the light source; and a control unit configured to control the light source and the SLM based on at least one of illuminance of the surroundings or content of the image.Type: ApplicationFiled: July 12, 2023Publication date: April 11, 2024Applicant: HYUNDAI MOBIS CO., LTD.Inventors: Ki Hyuk SONG, Yu Jin SHIN, Jeong Ho CHO, Hyun Woo KANG, Yoo Na KIM, Jae Ho OH
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Patent number: 10184707Abstract: A heat pump and a control method thereof, the control method of the heat pump which heats a heated space through heat exchange between outdoor air and a refrigerant and heat exchange between the refrigerant and circulation water, includes calculating the maximum allowable frequency of a compressor based on the temperature of the outdoor air and the heating load of the heated space, calculating the mean operating frequency of the compressor while the compressor is operated at the calculated maximum allowable frequency, recalculating the maximum allowable frequency based on a result of comparison between the mean operating frequency and the maximum allowable frequency, and operating the compressor at the recalculated maximum allowable frequency, thereby improving coefficient of performance (COP) of the heat pump.Type: GrantFiled: October 25, 2013Date of Patent: January 22, 2019Assignee: SAMSUNG ELECTRONICS CO., LTD.Inventors: Dong Woon Jeong, Sung Goo Kim, Chang Seo Park, Jae Hyuk Oh, Yong Hyun Jeon
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Patent number: 9528732Abstract: A heat pump apparatus is provided. The heat pump raises the water temperature during a hot-water supply without using a separate heat source such as a heater. The heat pump apparatus includes an outdoor unit including a first compressor, a first heat exchanger, and a first expansion valve. The heat pump apparatus includes an indoor unit including a second heat exchanger and a second expansion valve, a hydro unit including a second compressor, a third heat exchanger, a fourth heat exchanger, a fifth heat exchanger, a third expansion valve, a fourth expansion valve, and a fifth expansion valve. The heat pump apparatus includes a refrigerant flow path switching unit to switch among flow paths, and a water flow path switching unit to switch between flow paths of the water.Type: GrantFiled: October 24, 2013Date of Patent: December 27, 2016Assignee: SAMSUNG ELECTRONICS CO., LTD.Inventors: Sung Goo Kim, Hyo Ju Moon, Jong Youb Kim, Jae Hyuk Oh
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Patent number: 9312087Abstract: Disclosed is an electronic contactor including: a lower body; a magnetic force generator disposed within the lower body and magnetized by electric power transferred from outside to perform suctioning operation; a crossbar coupled to an upper portion of the magnetic force generator and provided with a movable contact to be lifted or lowered; a pair of separable upper bodies each being provided at one side thereof with a stationary contact and an auxiliary stationary contact and respectively coupled to upper opposite ends of the lower body such that the movable contact and auxiliary movable contacts are placed therein, facing ends of the upper bodies being coupled to each other inside the upper bodies so as to face each other; and a cover coupling upper ends of the upper bodies such that an upper end of the crossbar and the movable contact are exposed.Type: GrantFiled: December 21, 2012Date of Patent: April 12, 2016Assignee: HYUNDAI HEAVY INDUSTRIES CO., LTDInventors: Young-Myoung Yeon, Ki-Jeong Kwon, Young-Ho Jin, Jae-Hyuk Oh
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Publication number: 20150061797Abstract: Disclosed is an electronic contactor including: a lower body; a magnetic force generator disposed within the lower body and magnetized by electric power transferred from outside to perform suctioning operation; a crossbar coupled to an upper portion of the magnetic force generator and provided with a movable contact to be lifted or lowered; a pair of separable upper bodies each being provided at one side thereof with a stationary contact and an auxiliary stationary contact and respectively coupled to upper opposite ends of the lower body such that the movable contact and auxiliary movable contacts are placed therein, facing ends of the upper bodies being coupled to each other inside the upper bodies so as to face each other; and a cover coupling upper ends of the upper bodies such that an upper end of the crossbar and the movable contact are exposed.Type: ApplicationFiled: December 21, 2012Publication date: March 5, 2015Inventors: Young-Myoung Yeon, Ki-Jeong Kwon, Young-Ho Jin, Jae-Hyuk Oh
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Publication number: 20140116074Abstract: A heat pump and a control method thereof, the control method of the heat pump which heats a heated space through heat exchange between outdoor air and a refrigerant and heat exchange between the refrigerant and circulation water, includes calculating the maximum allowable frequency of a compressor based on the temperature of the outdoor air and the heating load of the heated space, calculating the mean operating frequency of the compressor while the compressor is operated at the calculated maximum allowable frequency, recalculating the maximum allowable frequency based on a result of comparison between the mean operating frequency and the maximum allowable frequency, and operating the compressor at the recalculated maximum allowable frequency, thereby improving coefficient of performance (COP) of the heat pump.Type: ApplicationFiled: October 25, 2013Publication date: May 1, 2014Applicant: SAMSUNG ELECTRONICS CO., LTD.Inventors: Dong Woon JEONG, Sung Goo KIM, Chang Seo PARK, Jae Hyuk OH, Yong Hyun JEON
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Publication number: 20140116072Abstract: A heat pump apparatus is provided. The heat pump raises the water temperature during a hot-water supply without using a separate heat source such as a heater. The heat pump apparatus includes an outdoor unit including a first compressor, a first heat exchanger, and a first expansion valve. The heat pump apparatus includes an indoor unit including a second heat exchanger and a second expansion valve, a hydro unit including a second compressor, a third heat exchanger, a fourth heat exchanger, a fifth heat exchanger, a third expansion valve, a fourth expansion valve, and a fifth expansion valve. The heat pump apparatus includes a refrigerant flow path switching unit to switch among flow paths, and a water flow path switching unit to switch between flow paths of the water.Type: ApplicationFiled: October 24, 2013Publication date: May 1, 2014Applicant: Samsung Electronics Co., Ltd.Inventors: Sung Goo KIM, Hyo Ju Moon, Jong Youb Kim, Jae Hyuk Oh
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Patent number: 8365800Abstract: A solar battery is partially attached to each blade of a blind. The position of each blade is adjusted based on position information such that each blade tracks sunlight. Electric energy obtained by the generation of electricity using an indoor illumination source is used to charge a battery. In addition to the generation of electricity, some of the blades are folded to let in light.Type: GrantFiled: November 16, 2009Date of Patent: February 5, 2013Assignee: Samsung Electronics Co., Ltd.Inventors: Jae Hyuk Oh, See Young Choi, Seong Je Wu, Seong Joo Han
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Patent number: 8253548Abstract: An elevator system (10) includes a wireless batteryless hall call switch module (22) that transmits a unique wireless code when a person presses a hall call button (32, 34) requesting elevator service. A hall indicator module (24) includes an RF transceiver (64) that receives the wireless code from the switch module (22), activates a display to indicate that a button has been pushed, and transmits the hall call information to the elevator control system (14). When the elevator controller (14) informs the transceiver (64) of car arrival, the hall indicator module (24) causes the display to indicate car arrival.Type: GrantFiled: September 7, 2005Date of Patent: August 28, 2012Assignee: Otis Elevator CompanyInventors: Jae-Hyuk Oh, Norbert A. M. Hootsmans
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Patent number: 8227125Abstract: A stable fuel supply system in a fuel cell system produces heat and electricity by combining hydrogen modified from a major raw material selected from various hydrogen compounds, with oxygen existing in air. A fuel supply device and a fuel supply method in a fuel cell system, which automate a steam to carbon ratio (S/C) control and a lamda control, and achieve a fuel cell system operation efficiently and stably coping with pressure loss and pulsation occurring within the system, while using a minimum number of balance-of-plant (BOP) units. A method more efficiently and precisely supplies fuel during the start-up and operation of the fuel cell system, while preventing flame failure of a burner and maintaining an appropriate carbon monoxide concentration even when an abrupt flow rate variation occurs.Type: GrantFiled: February 19, 2009Date of Patent: July 24, 2012Assignee: Samsung Electronics Co., Ltd.Inventors: Jin S. Heo, Takami Higashi, Jae Hyuk Oh
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Patent number: 8222775Abstract: A method of electromechanical energy harvesting includes sensing electrical current generated by relative movement of a coil and a magnetic flux source produced by movement of a cantilevered beam in response to ambient vibration energy, determining a vibration characteristic of the ambient vibration energy, and adjusting an effective flexible length of the cantilevered beam as a function of the vibration characteristic and the sensed electrical current.Type: GrantFiled: August 30, 2011Date of Patent: July 17, 2012Assignee: Chubb International Holdings LimitedInventors: Jacek F. Gieras, Jae-Hyuk Oh, Mihai Huzmezan, Harshad S. Sane
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Publication number: 20120055177Abstract: An air conditioner controls supply of refrigerant so that the refrigerant is first supplied to one or more indoor units in operation from an outdoor unit, and is then supplied to a hot water generator, thereby sufficiently supplying refrigerant to the indoor units in heating operation even when the hot water generator is operated.Type: ApplicationFiled: August 26, 2011Publication date: March 8, 2012Applicant: SAMSUNG ELECTRONICS CO., LTD.Inventors: Sung Goo Kim, Jae Hyuk Oh, Seong Je Wu, Dong Woon Jeong, Yong Hyun Jeon, Chang Seo Park
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Publication number: 20110309618Abstract: A method of electromechanical energy harvesting includes sensing electrical current generated by relative movement of a coil and a magnetic flux source produced by movement of a cantilevered beam in response to ambient vibration energy, determining a vibration characteristic of the ambient vibration energy, and adjusting an effective flexible length of the cantilevered beam as a function of the vibration characteristic and the sensed electrical current.Type: ApplicationFiled: August 30, 2011Publication date: December 22, 2011Applicant: CHUBB INTERNATIONAL HOLDINGS LIMITEDInventors: Jacek F. Gieras, Jae-Hyuk Oh, Mihai Huzmezan, Harshad S. Sane
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Patent number: 8069959Abstract: An elevator includes a car follower associated with each of a pair of guide rails, and carrying electromagnets which are spaced from electromagnets on an elevator car. The electromagnets on the car and car follower create a repulsive force tending to center the car between the car follower electromagnets associated with the two guide rails. Preferably, the car follower electromagnets are interconnected into a single car follower such that they move together.Type: GrantFiled: June 20, 2003Date of Patent: December 6, 2011Assignee: Otis Elevator CompanyInventors: Jae-Hyuk Oh, Pei-Yuan Peng, Howard Winston, Alan Finn
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Patent number: 8030807Abstract: An ambient energy harvesting system, and method of use thereof, includes a magnetic flux-generating assembly (28), a coil (30) positioned adjacent to the magnetic flux-generating assembly (28), and a cantilevered arm (24). Vibration of the cantilevered arm (24) enables relative movement between the magnetic flux-generating assembly (28) and the coil (30) to generate an electric current in the coil (30). An effective flexible length (L) of the cantilevered arm (24) is selected such that applied kinetic energy causes the cantilevered arm (24) to vibrate at approximately its resonant frequency.Type: GrantFiled: December 9, 2005Date of Patent: October 4, 2011Assignee: Chubb International Holdings LimitedInventors: Jacek F. Gieras, Jae-Hyuk Oh, Mihai Huzmezan, Hashad S. Sane
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Publication number: 20110214437Abstract: A heat pump system which executes cooling and heating operations of an A2A indoor unit and cooling and heating operations and a hot water operation of an A2W indoor unit in a time division multiplexing (TDM) method, and a control method thereof. Further, the heat pump system solves shortage of a refrigerant during a heating operation of the A2A indoor unit or the A2W indoor unit when the TDM method is used. Therefore, the heat pump system includes a control unit to alternately operate the A2A indoor unit or the A2W indoor unit, upon judging that a simultaneous operating condition of the A2A indoor unit or the A2W indoor unit is satisfied. The heat pump system further includes a refrigerant distribution unit to circulate a refrigerant selectively to the A2A indoor unit or the A2W indoor unit.Type: ApplicationFiled: January 20, 2011Publication date: September 8, 2011Applicant: SAMSUNG ELECTRONICS CO., LTD.Inventors: Dong Woon Jeong, Sung Goo Kim, Jae Hyuk Oh, Seong Je Wu
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Patent number: 8013737Abstract: A system and method for monitoring a location having at least one sensor for sensing a change in at least one condition using voice tags to announce alarms. The system includes a registration process where a voice recorder and a digital conversion unit form digital voice tags from recorded speech representing the type and location of sensors. The voice tag is sent as part of an alarm message or pre-stored in a control panel for later retrieval such that the type and location of an alarm is reproduced vocally at the time of the alarm. The registration process may be completed with a registration module which may be a keypad or the voice recorder may be included in the sensors. Additional features include sensor location change notification to ensure the stored voice tag represents the current location of the sensor.Type: GrantFiled: September 3, 2008Date of Patent: September 6, 2011Assignee: UTC Fire and Security CorporationInventors: Ankit Tiwari, Jae-Hyuk Oh, Christian M. Netter, Luiz Fer Bacellar, Thomas M. Gillis
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Publication number: 20110203298Abstract: A heat pump system, the operation of which is controlled using a temperature difference between a water inlet and a water outlet of a heat exchanger, exchanging heat between a refrigerant and water, and a control method thereof. The heat pump system includes temperature sensors installed on a water circulation pipe unit at water inlet and outlet sides of a heat exchanger, and heats a load to a set temperature by controlling a compressor or an expander according to a difference between temperatures sensed by the temperature sensors. Here, a temperature of water transmitted to the load is set to be greater than a target load temperature by a reference value, and if the temperature difference is smaller than a designated value, the operation of the heat pump system is stopped.Type: ApplicationFiled: February 1, 2011Publication date: August 25, 2011Applicant: Samsung Electronics Co., Ltd.Inventors: Sung Goo Kim, Jae Hyuk Oh, Dong Woon Jeong, Chang Seo Park
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Publication number: 20100171614Abstract: A security breach in the integrity of a container (10), such as a cargo container or a security vault, is detected using an apparatus (12) formed of a transmitter (18) and a processor (20). The transmitter (18) includes an antenna (26) that radiates electromagnetic waves from within the container (10). The processor (20) measures an impedance of the antenna (26) and produces an alarm if the impedance of the antenna (26) strays indicating a security breach in the integrity of the container (10).Type: ApplicationFiled: February 22, 2005Publication date: July 8, 2010Applicant: CHUBB INTERNATIONAL HOLDING LIMITEDInventors: Julio I. Concho, Jae-Hyuk Oh, Joseph Zacchio
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Publication number: 20100154865Abstract: Disclosed herein is a photovoltaic-thermal hybrid apparatus. The photovoltaic-thermal hybrid apparatus includes at least one condenser to change a direction of some incident solar energy therein in a radial direction and emit some incident solar energy outside, a solar cell disposed at least one side of the condenser, and a frame to surround the condenser, the frame having a cooling channel to cool the solar cell disposed at at least one side therein.Type: ApplicationFiled: September 30, 2009Publication date: June 24, 2010Applicant: SAMSUNG ELECTRONICS CO., LTD.Inventors: Jae Hyuk Oh, Seong Je Wu, Seong Joo Han, See Young Choi