Patents by Inventor Jong-Hun Ha

Jong-Hun Ha 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: 11555914
    Abstract: Disclosed is a compact integrated apparatus of an interferometric radar altimeter (IRA) and a radar altimeter (RA) capable of performing individual missions by altitude, which includes: a plurality of antennas; a signal processing control unit selecting an RA mode at a low altitude and selecting an IRA mode at a high altitude based on a mode threshold and selecting an FMCW waveform at the low altitude and selecting an FM pulse waveform at the high altitude based on a waveform threshold; and a transceiving unit transmitting a signal by a first antenna positioned at an outermost portion among the plurality of antennas and receiving a signal by an nth antenna positioned at another outermost portion among the plurality of antennas in the RA mode and transmitting a signal through the first antenna and receiving signals through the plurality of antennas in the IRA mode.
    Type: Grant
    Filed: May 2, 2022
    Date of Patent: January 17, 2023
    Assignee: AGENCY FOR DEFENSE DEVELOPMENT
    Inventors: Jong Soo Ha, Soo Ji Lee, Seok Woo Lee, Jong Hun Jang, Han Jin Lee, Young Sik Park, Jin Eep Roh, Wan Joo Kim
  • Publication number: 20220365202
    Abstract: Disclosed is a compact integrated apparatus of an interferometric radar altimeter (IRA) and a radar altimeter (RA) capable of performing individual missions by altitude, which includes: a plurality of antennas; a signal processing control unit selecting an RA mode at a low altitude and selecting an IRA mode at a high altitude based on a mode threshold and selecting an FMCW waveform at the low altitude and selecting an FM pulse waveform at the high altitude based on a waveform threshold; and a transceiving unit transmitting a signal by a first antenna positioned at an outermost portion among the plurality of antennas and receiving a signal by an nth antenna positioned at another outermost portion among the plurality of antennas in the RA mode and transmitting a signal through the first antenna and receiving signals through the plurality of antennas in the IRA mode.
    Type: Application
    Filed: May 2, 2022
    Publication date: November 17, 2022
    Applicant: AGENCY FOR DEFENSE DEVELOPMENT
    Inventors: Jong Soo HA, Soo Ji LEE, Seok Woo LEE, Jong Hun JANG, Han Jin LEE, Young Sik PARK, Jin Eep ROH, Wan Joo KIM
  • Patent number: 10887951
    Abstract: Disclosed are a cooking apparatus and a method of controlling the same. The cooking apparatus includes a plurality of light sources configured to emit light toward a cooking container and grouped into a plurality of groups and a light emission driving controller configured to perform control in a manner that flame images are displayed by performing group controlling on the basis of at least one of a control command input by a user, a grouping form of the plurality of groups and a preset operation pattern.
    Type: Grant
    Filed: January 3, 2018
    Date of Patent: January 5, 2021
    Assignee: Samsung Electronics Co., Ltd.
    Inventors: Hyo Suk Kim, Jeong Heon Kim, Hwa-Sung Kim, Chang Hyun Park, O Do Yu, Su-Ho Jo, Jong Hun Ha
  • Publication number: 20180192480
    Abstract: Disclosed are a cooking apparatus and a method of controlling the same. The cooking apparatus includes a plurality of light sources configured to emit light toward a cooking container and grouped into a plurality of groups and a light emission driving controller configured to perform control in a manner that flame images are displayed by performing group controlling on the basis of at least one of a control command input by a user, a grouping form of the plurality of groups and a preset operation pattern.
    Type: Application
    Filed: January 3, 2018
    Publication date: July 5, 2018
    Inventors: Hyo Suk KIM, Jeong Heon KIM, Hwa-Sung KIM, Chang Hyun PARK, O Do YU, Su-Ho JO, Jong Hun HA
  • Patent number: 8564982
    Abstract: A power supply circuit to detect whether or not abnormal current is generated in a power factor compensation circuit and forcibly stop an operation of an interleaved power factor compensation circuit controller if abnormal current is generated. The power supply circuit includes a rectifier, a power factor compensation circuit including a plurality of reactors, a plurality of switches and a plurality of current detectors, a power factor compensation circuit controller to control switching of the switches and to control a power factor compensation operation, and a power factor compensation circuit protection circuit to receive the voltages output from the plurality of current detectors and to stop the operation of the power factor compensation circuit controller if at least one of the voltages output from the plurality of current detectors is abnormal. Thus, it is possible to prevent failure of the switches and the current detectors due to abnormal current.
    Type: Grant
    Filed: August 29, 2011
    Date of Patent: October 22, 2013
    Assignee: Samsung Electronics Co., Ltd.
    Inventors: Ho Gul Song, Kyoung Hoe Kim, Jong Hun Ha, Dae Hee Han, Yong Wook Kim
  • Patent number: 8437155
    Abstract: A device correcting a power factor caused by an input current delay of a three-phase inverter and a method of controlling the same are disclosed. In case of a product having a high-current power environment and a high-capacity inverter, a three-phase power factor correction (PFC) device detects any erroneous PFC operation of the three-phase inverter using a current sensor located at a common potential terminal. So, if the input current delay occurs, the three-phase PFC device delays an ON time of a switching element from a zero-crossing point of the input voltage, and performs an optimum switching operation caused by the input-current delay, resulting in the implementation of an increased power factor.
    Type: Grant
    Filed: February 20, 2009
    Date of Patent: May 7, 2013
    Assignee: Samsung Electronics Co., Ltd.
    Inventors: Jong Hun Ha, Ho Gul Song
  • Patent number: 8300436
    Abstract: A power factor correction (PFC) protection device used when an abnormal current of a three-phase inverter occurs and a method of controlling the same are disclosed. If any mis-connection (or non-connection) occurs due to a mistake of a producer at a power-supply input terminal applied to the reactor and the switching element, a current applied to the switching element becomes an abnormal current, such that the PFC cannot be controlled. During the PFC control, the device detects a current waveform generated from the switching element at a current sensor of the common potential terminal, and determines whether there is a mis-connection caused by the abnormal current. If the mis-connection is decided, the device compares a current pattern with a mis-connection pattern, and changes the PFC control output applied to the switching element according to the searched mis-connection pattern, such that the PFC control can be normally carried out.
    Type: Grant
    Filed: February 20, 2009
    Date of Patent: October 30, 2012
    Assignee: Samsung Electronics Co., Ltd.
    Inventors: Jong Hun Ha, Ho Gul Song
  • Publication number: 20120056604
    Abstract: A power supply circuit to detect whether or not abnormal current is generated in a power factor compensation circuit and forcibly stop an operation of an interleaved power factor compensation circuit controller if abnormal current is generated. The power supply circuit includes a rectifier, a power factor compensation circuit including a plurality of reactors, a plurality of switches and a plurality of current detectors, a power factor compensation circuit controller to control switching of the switches and to control a power factor compensation operation, and a power factor compensation circuit protection circuit to receive the voltages output from the plurality of current detectors and to stop the operation of the power factor compensation circuit controller if at least one of the voltages output from the plurality of current detectors is abnormal. Thus, it is possible to prevent failure of the switches and the current detectors due to abnormal current.
    Type: Application
    Filed: August 29, 2011
    Publication date: March 8, 2012
    Applicant: SAMSUNG ELECTRONICS CO., LTD.
    Inventors: Ho Gul Song, Kyoung Hoe Kim, Jong Hun Ha, Dae Hee Han, Yong Wook Kim
  • Publication number: 20100073975
    Abstract: A device correcting a power factor caused by an input current delay of a three-phase inverter and a method of controlling the same are disclosed. In case of a product having a high-current power environment and a high-capacity inverter, a three-phase power factor correction (PFC) device detects any erroneous PFC operation of the three-phase inverter using a current sensor located at a common potential terminal. So, if the input current delay occurs, the three-phase PFC device delays an ON time of a switching element from a zero-crossing point of the input voltage, and performs an optimum switching operation caused by the input-current delay, resulting in the implementation of an increased power factor.
    Type: Application
    Filed: February 20, 2009
    Publication date: March 25, 2010
    Applicant: SAMSUNG ELECTRONICS CO., LTD.
    Inventors: Jong Hun Ha, Ho Gul Song
  • Publication number: 20100073973
    Abstract: A power factor correction (PFC) protection device used when an abnormal current of a three-phase inverter occurs and a method of controlling the same are disclosed. If any mis-connection (or non-connection) occurs due to a mistake of a producer at a power-supply input terminal applied to the reactor and the switching element, a current applied to the switching element becomes an abnormal current, such that the PFC cannot be controlled. During the PFC control, the device detects a current waveform generated from the switching element at a current sensor of the common potential terminal, and determines whether there is a mis-connection caused by the abnormal current. If the mis-connection is decided, the device compares a current pattern with a mis-connection pattern, and changes the PFC control output applied to the switching element according to the searched mis-connection pattern, such that the PFC control can be normally carried out.
    Type: Application
    Filed: February 20, 2009
    Publication date: March 25, 2010
    Applicant: SAMSUNG ELECTRONICS CO., LTD.
    Inventors: Jong Hun Ha, Ho Gul Song
  • Patent number: 7431571
    Abstract: A muffler for a hermetic rotary compressor including a muffler body forming a plurality of noise reducing spaces in which refrigerant gas flows; a discharge port formed on the muffler body so as to be located on the nose reducing spaces side; and a guide cover coupled to an inner wall of the muffler body in radial direction for guiding the refrigerant gas flowing in the noise reducing spaces to be discharged to the discharge port, and therefore the noise generated during the discharge of the compressed refrigerant gas to inside a sealed chamber, and a flow resistance for the discharged refrigerant gas is reduced, whereby the electric power consumption is reduced, and the structure and assembling processes can be simplified.
    Type: Grant
    Filed: November 16, 2001
    Date of Patent: October 7, 2008
    Assignee: LG Electronics Inc.
    Inventors: Young-Jong Kim, Jong-Hun Ha, Byung-Ha Ahn, Kwang-Ho Kim, Sang-Myung Byun
  • Publication number: 20060171829
    Abstract: A chamber (10) for a compressor is disclosed in which at least one portion has a multi-layer structure (11) and plates having the multi-layer structure are tightly attached to thereby reduce noise and vibration by virtue of mutual frictional force. Vibration energy is transformed to thermal energy according to friction and transmitted externally through the chamber (10) during the operation of the compressor. Thus, noise and vibration generated during the operation of the compressor can be considerably reduced.
    Type: Application
    Filed: December 20, 2002
    Publication date: August 3, 2006
    Inventor: Jong-Hun Ha
  • Patent number: 6997002
    Abstract: Disclosed herein is an air conditioning unit and method of operating the same. The air conditioning unit has a power level control unit (6) for controlling the level of power supplied to a motor (2a) of a compressor. The power level control unit (6) is comprised of a first supplying unit (6a) for supplying first level power to the compressor motor (2a), and a second supplying unit (6b) for supplying second level power to the compressor motor (2a). If an operation cycle of the compressor corresponds to a loading operation, the power level control unit (6) supplies first level power for compressing a cooling agent through the first supplying unit (6a). Further, if an operation cycle of the compressor corresponds to an unloading operation, the power level control unit (6) supplies second level power less than the first level power through the second supplying unit (6b).
    Type: Grant
    Filed: June 5, 2002
    Date of Patent: February 14, 2006
    Assignee: Samsung Electronics Co., Ltd.
    Inventors: Joong-Ki Moon, Je-Myoung Moon, Dong-Kue Lee, Jong-Hun Ha
  • Publication number: 20050097906
    Abstract: An air conditioner and a method of controlling the air conditioner are disclosed. It is an aspect of the present invention to provide an air conditioner and a method of controlling the air conditioner, which is capable of improving a structure to supply stable power, and effectively reset an outdoor unit and at least one indoor unit, in a multi-unit type air conditioner that is operated with the plurality of indoor units connected to the outdoor unit through a communication line. The air conditioner further includes reset control units, which are provided on the outdoor unit and the at least one indoor unit, respectively, to receive a reset signal transmitted through the communication line and to reset the outdoor unit or the at least one indoor unit.
    Type: Application
    Filed: May 28, 2004
    Publication date: May 12, 2005
    Inventor: Jong-Hun Ha
  • Publication number: 20040241012
    Abstract: A muffler for a hermetic rotary compressor comprises: a muffler body (100) forming a plurality of noise reducing spaces (140) in which refrigerant gas flows; a discharge port (110) formed on the muffler body (100) so as to be located on the nose reducing spaces side; and a guide cover (200) coupled to an inner wall of the muffler body in radial direction for guiding the refrigerant gas flowing in the noise reducing spaces to be discharged to the discharge port (110), and therefore the noise generated during the discharge of the compressed refrigerant gas to inside a sealed chamber, and a flow resistance for the discharged refrigerant gas is reduced, whereby the electric power consumption is reduced, and the structure and assembling processes can be simplified.
    Type: Application
    Filed: April 14, 2004
    Publication date: December 2, 2004
    Inventors: Young-Jong Kim, Sang-Myung Byun, Byung-Ha Ahn, Jong-Hun Ha, Kwang-Ho Kim
  • Publication number: 20040177633
    Abstract: Disclosed herein is an air conditioning unit and method of operating the same. The air conditioning unit has a power level control unit (6) for controlling the level of power supplied to a motor (2a) of a compressor. The power level control unit (6) is comprised of a first supplying unit (6a) for supplying first level power to the compressor motor (2a), and a second supplying unit (6b) for supplying second level power to the compressor motor (2a). If an operation cycle of the compressor corresponds to a loading operation, the power level control unit (6) supplies first level power for compressing a cooling agent through the first supplying unit (6a). Further, if an operation cycle of the compressor corresponds to an unloading operation, the power level control unit (6) supplies second level power less than the first level power through the second supplying unit (6b).
    Type: Application
    Filed: January 2, 2004
    Publication date: September 16, 2004
    Inventors: Joong-Ki Moon, Je-Myoung Moon, Dong-Kue Lee, Jong-Hun Ha
  • Patent number: 6773244
    Abstract: A discharge part structure of a compressor is disclosed. In the compressor comprising a cylinder assembly having a suction flow path and a discharge flow path, a Z-plate in the cylinder assembly for dividing an inner space into a plurality of compression spaces and for making a fluid be sucked, compressed, and discharged by being rotated by a motor unit, and vanes contacted to both sides of the Z-plate for dividing the respective compression spaces into a suction region and a compression region by reciprocation, an oil filtering space or a buffering space having a predetermined volume is formed at an outer side of a discharge flow path of the cylinder assembly. According to this, oil mixed with a fluid can be efficiently separated when the fluid is discharged, and vibration noise can be minimized.
    Type: Grant
    Filed: March 7, 2003
    Date of Patent: August 10, 2004
    Assignee: LG Electronics Inc.
    Inventors: Jang-Woo Lee, Byung-Ha Ahn, Jae-Sul Shim, Young-Jong Kim, Jong-Hun Ha
  • Publication number: 20040105772
    Abstract: A discharge part structure of a compressor is disclosed. In the compressor comprising a cylinder assembly having a suction flow path and a discharge flow path, a Z-plate in the cylinder assembly for dividing an inner space into a plurality of compression spaces and for making a fluid be sucked, compressed, and discharged by being rotated by a motor unit, and vanes contacted to both sides of the Z-plate for dividing the respective compression spaces into a suction region and a compression region by reciprocation, an oil filtering space or a buffering space having a predetermined volume is formed at an outer side of a discharge flow path of the cylinder assembly. According to this, oil mixed with a fluid can be efficiently separated when the fluid is discharged, and vibration noise can be minimized.
    Type: Application
    Filed: March 7, 2003
    Publication date: June 3, 2004
    Inventors: Jang-Woo Lee, Byung-Ha Ahn, Jae-Sul Shim, Young-Jong Kim, Jong-Hun Ha
  • Publication number: 20040031283
    Abstract: A compressor having a vibration reducing structure comprising: a hermetic container having a suction pipe and a discharge pipe communicated thereto, a driving force generating means located in the hermetic container for generating a driving force, a compression unit for compressing gas by receiving the driving force from the driving force generating means; and an accumulator arranged at one side of the hermetic container and connected to one side of the suction pipe for filtering gas, wherein the suction pipe is provided with a vibration preventing means which absorbs vibration so as to prevent vibration generated at the compression unit from being transmitted to the accumulator through the suction pipe, thereby reducing noise due to the vibration and increasing a reliability of the compressor.
    Type: Application
    Filed: March 20, 2003
    Publication date: February 19, 2004
    Inventors: Byoung-Ha Ahn, Jong-Hun Ha
  • Publication number: 20030138340
    Abstract: A cylinder assembly of a compressor includes: a cylinder having a cylindrical inner space partitioned into a first space and a second space as partition plate of a rotational shaft is inserted thereinto and a step insertion portion formed at both sides thereof in a ring shape; a first bearing having the rotational shaft coupled at a central portion and being inserted to be coupled into the step insertion portion formed at one side of the cylinder so as to cover the inner space of the cylinder; and a second bearing having the rotational shaft coupled at the central portion thereof and being inserted to be coupled into the step insertion portion formed at the other side of the cylinder so as to cover the inner space of the cylinder. A dead volume is reduced and thus a re-expansion loss of a refrigerant gas can be reduced.
    Type: Application
    Filed: November 25, 2002
    Publication date: July 24, 2003
    Inventors: Young-Jong Kim, Jong-Hun Ha, Byung-Ha Ahn