Patents Assigned to LSI
  • Data processing device and method for high voltage direct current transmission system
    Patent number: 10250154
    Abstract: A data processing device is provided. The data processing device in a high voltage direct current (HVDC) transmission system includes a measurement module measuring a voltage or current for one or more points in the HVDC system; and a data processing and control unit generating measurement data units using measurement values measured at the measurement module and performing serial transmission on the generated measurement data units through time division multiplexing (TDM), wherein the data processing and control unit includes a plurality of data unit generation parts, and each of the plurality of data unit generation parts outputs a transmission completion signal representing that the transmission of a measurement data unit is completed.
    Type: Grant
    Filed: April 27, 2015
    Date of Patent: April 2, 2019
    Assignee: LSIS CO., LTD.
    Inventor: Ho Hwan Park
  • Heat radiation apparatus using modular cooling apparatus
    Patent number: 10251319
    Abstract: Disclosed herein is a heat radiation apparatus using modular cooling apparatuses. The heat radiation apparatus includes one or more modular apparatuses, and a housing in which the modular apparatuses are inserted. The housing includes an outer frame, and one or more bridges that support the modular cooling apparatuses in the outer frame. A step is formed at the outer frame and the bridges to mount a radiation plate thereon.
    Type: Grant
    Filed: September 5, 2017
    Date of Patent: April 2, 2019
    Assignee: LSIS CO., LTD.
    Inventor: Soo-Yong Hwang
  • Apparatus for correcting of temperature measurement signal
    Patent number: 10247625
    Abstract: The present invention relates to an apparatus for correcting a temperature sensing signal of an IGBT temperature sensing device which outputs only a temperature sensing signal having a voltage value equal to or higher than a preset voltage value, by using an output limiting diode. The apparatus includes: a calculating part configured to calculate a conduction current value of the output limiting diode by using the resistance of an NTC thermistor included in the IGBT temperature sensing device; a determining part configured to determine a drop voltage value of a voltage drop occurring in the output limiting diode based on the conduction current value; and a correcting part configured to correct the temperature sensing signal by increasing the voltage of the temperature sensing signal output from the IGBT temperature sensing device by the drop voltage value.
    Type: Grant
    Filed: November 14, 2016
    Date of Patent: April 2, 2019
    Assignee: LSIS CO., LTD.
    Inventors: Hong-Seok Kim, Jae-Moon Lee, Chun-Suk Yang
  • Method for displaying monitoring screen at a display location
    Patent number: 10248304
    Abstract: The method for displaying a monitoring screen for a control program includes: providing a list of files of monitoring screens via a display unit; receiving a file of a monitoring screen to be displayed among the files of the list and a display location of the monitoring screen from a user; and executing the file of the monitoring screen input from the user to display the monitoring screen at the display location.
    Type: Grant
    Filed: May 5, 2017
    Date of Patent: April 2, 2019
    Assignee: LSIS CO., LTD.
    Inventor: Seung-Ju Lee
  • System for controlling power device
    Patent number: 10250254
    Abstract: The present disclosure provides a system for controlling a power device including one or more power elements, one or more drive modules configured to provide a drive signal with respect to the one or more power elements through a signal line and provided with a first wireless module, and an upper level controller configured to a control signal with respect to the one or more drive modules through a signal line and provided with a second wireless module corresponding to the first wireless module, wherein each of the one or more drive modules transmits state information of the one or more power elements and the one or more drive modules to the second wireless module through the first wireless module, and the upper level controller transmits a control signal corresponding to the state information to the first wireless module through the second wireless module.
    Type: Grant
    Filed: December 28, 2016
    Date of Patent: April 2, 2019
    Assignee: LSIS CO., LTD.
    Inventors: Sung-Hee Kang, Gyoung-Hun Nam, Gyu-Sung Bae
  • Photovoltaic system
    Patent number: 10243504
    Abstract: A data collection device for photovoltaic power generation is provided. The data collection device for collecting photovoltaic power generation data includes a reception unit receiving, from a photovoltaic device, generation that absorbed solar energy is converted into electrical energy, and photovoltaic power generation related information; a storage unit storing the photovoltaic power generation related information on the photovoltaic device; a control unit determining a predicted life of the photovoltaic device based on the photovoltaic power generation related information received from the reception unit and accumulated related information stored in the storage unit; and a transceiver transmitting a result of determination to an external device.
    Type: Grant
    Filed: January 21, 2016
    Date of Patent: March 26, 2019
    Assignee: LSIS CO., LTD.
    Inventor: Choong Kun Cho
  • Communication device and communication method
    Patent number: 10237018
    Abstract: A first communication device calculates a plurality of data error codes for detecting an error in a plurality of data fields by using the plurality of data fields. The first communication device generates a packet comprising the plurality of data fields and the plurality of data error codes, and then transmits the packet which is generated to a second communication device.
    Type: Grant
    Filed: October 22, 2012
    Date of Patent: March 19, 2019
    Assignee: LSIS CO., LTD.
    Inventors: Sung Han Lee, Dae Hyun Kwon, Joon Seok Oh
  • Ferrule holder with suture relief lobes
    Patent number: 10231729
    Abstract: A surgical suturing instrument has a chamber for receiving and aligning a ferrule with a reciprocating needle. The chamber includes a plurality of protuberant concave and convex surfaces for positioning and aligning the ferrule within the chamber and the plurality of suture receiving chambers disposed between the aligning ridges for receiving a suture and preventing the suture from jamming the ferrule in the chamber.
    Type: Grant
    Filed: December 22, 2016
    Date of Patent: March 19, 2019
    Assignee: LSI Solutions, Inc.
    Inventor: Jude S. Sauer
  • Apparatus and method for data synchronizing of energy management system
    Patent number: 10237345
    Abstract: Disclosed embodiments relate to a synchronizing method of a client device in an energy management system. In some embodiments, the method includes: deciding a synchronization object server for downloading synchronization data; downloading the synchronization data from the decided synchronization object server; determining whether or not the status of operation of the client device is synchronizable, based on the downloaded synchronization data; and performing a synchronization operation for the downloaded synchronization data based on a result of the determination.
    Type: Grant
    Filed: September 1, 2016
    Date of Patent: March 19, 2019
    Assignee: LSIS CO., LTD.
    Inventors: Jong-Ho Park, Myung-Hwan Lee, Seung-Ju Lee, Yeo-Chang Yoon, Shin-Jo Kong, Jang-Hyeok Yun
  • Molded-case circuit breaker for DC
    Patent number: 10236150
    Abstract: The present invention relates to a molded-case circuit breaker for direct current (DC), and more particularly, to a molded-case circuit breaker for DC in which a connecting conductor for connecting terminals in the DC circuit breaker is configured as an assembly unit and contained in a terminal receiving portion to improve insulation performance and assemblability and reduce occupied space. There is provided a molded-case circuit breaker for DC that contains a plurality of interruption units, the DC circuit breaker including a terminal connecting unit that connects terminals of adjacent interruption units, the terminal connecting unit being placed within a terminal receiving portion on the front or rear of an outer casing of the circuit breaker.
    Type: Grant
    Filed: December 14, 2017
    Date of Patent: March 19, 2019
    Assignee: LSIS CO., LTD.
    Inventor: Kyunghwan Oh
  • Surgical rib cutter and methods thereof
    Patent number: 10231723
    Abstract: A surgical rib cutter is disclosed. The surgical rib cutter includes a housing defining one or more guide slots. The surgical rib cutter also includes an anterior arm unit comprising an anterior effector configured to interact with an anterior side of a rib. The surgical rib cutter further includes a posterior arm unit comprising a posterior effector configured to interact with a posterior side of said rib. The surgical rib cutter also has an actuator movable relative to the housing and operationally coupled to at least one of the anterior and posterior arm units to move said at least one of the anterior and posterior arm units within at least one of the one or more guide slots to create a relative movement between the anterior and posterior arm units, said relative movement causing one of the anterior effector or the posterior effector to create a green stick break in said rib.
    Type: Grant
    Filed: April 10, 2015
    Date of Patent: March 19, 2019
    Assignee: LSI Solutions, Inc.
    Inventor: Jude S. Sauer
  • Communications device having relay
    Patent number: 10230539
    Abstract: A communications device includes a master unit and a block of slave units including a plurality of slave units control by the master unit. Each of the slave units include first and second ports to which different communications lines are connected, respectively, and a relay disposed between the first port and the second port and open/closed depending on whether power is supplied.
    Type: Grant
    Filed: November 17, 2016
    Date of Patent: March 12, 2019
    Assignee: LSIS CO., LTD.
    Inventor: Choong-Kun Cho
  • Method for estimating parameter of induction machines
    Patent number: 10230318
    Abstract: Disclosed embodiments relate to methods, apparatuses, and systems for estimating parameters of an induction machine. In some embodiments, a method for estimating parameter of an induction machine includes estimating parameters of the induction machine more accurately even when it is stationary by utilizing voltage equations of the induction machine and signal processing techniques, with no additional hardware.
    Type: Grant
    Filed: September 13, 2016
    Date of Patent: March 12, 2019
    Assignee: LSIS CO., LTD.
    Inventors: Anno Yoo, Yong-Doo Yoon
  • Surgical clamp and clamp jaw
    Patent number: 10219817
    Abstract: A surgical clamp jaw is disclosed, having an inner profile and a deflection control profile opposite the inner profile. In one embodiment, the inner profile has a first substantially concave profile in an unclamped position and a second substantially flat profile in a clamped position. In one embodiment, the deflection control profile has one or more sets of corresponding abutment surfaces, at least one set of which is not contacting each other when the inner profile is in the unclamped position and which is contacting each other when the inner profile is in the clamped position. In one embodiment, the surgical clamp jaw defines one or more flexion assistance voids, wherein at least one of the one or more flexion assistance voids is in contact with a gap between one of the one or more sets of corresponding abutment surfaces.
    Type: Grant
    Filed: March 13, 2014
    Date of Patent: March 5, 2019
    Assignee: LSI Solutions, Inc.
    Inventor: Jude S. Sauer
  • Operating method of synchronous machine
    Patent number: 10224850
    Abstract: An operating method of a synchronous machine is provided, the operating method including: generating an MTPA (Maximum Torque Per Ampere) curve, based on a current limiting circle depending on a rated current of an inverter or a motor and a torque curve depending on a torque command; generating a voltage limiting ellipse, based on a DC-link voltage; displaying, on an X-Y plane, the current limiting circle, the torque curve, the MTPA curve, and the voltage limiting ellipse; and computing a d-axis current and a q-axis current, based on an intersection point between at least two of the current limiting circle, the torque curve, the MTPA curve, and the voltage limiting ellipse, displayed on the X-Y plane.
    Type: Grant
    Filed: April 21, 2016
    Date of Patent: March 5, 2019
    Assignee: LSIS CO., LTD.
    Inventor: Eun Woo Lee
  • Depth limiter for suturing devices and methods thereof
    Patent number: 10213269
    Abstract: A depth limiter for surgical suturing is disclosed. The depth limiter has a tissue stop. The depth limiter also has at least one attachment point coupled to the tissue stop and configured to removably engage a surgical suturing device to position the tissue stop relative to a tissue bite area of the surgical suturing device. A further depth limiter for surgical suturing is disclosed. The depth limiter has a tissue stop. The depth limiter also has at least one attachment point coupled to the tissue stop and configured to engage a surgical suturing device to position the tissue stop relative to a tissue bite area of the surgical suturing device.
    Type: Grant
    Filed: August 12, 2016
    Date of Patent: February 26, 2019
    Assignee: LSI Solutions, Inc.
    Inventor: Jude S. Sauer
  • Enclosed type electromagnetic switch having status indication function
    Patent number: 10217588
    Abstract: The present invention relates to an enclosed type electromagnetic switch having a status indication function, and more particularly, to and enclosed-type electromagnetic switch having a status indication function that can show the electromagnetic switch's status on an enclosure.
    Type: Grant
    Filed: January 14, 2017
    Date of Patent: February 26, 2019
    Assignee: LSIS CO., LTD.
    Inventor: Jaehyuk Choi
  • Method for electrical contact materials including Ag plated CNTs
    Patent number: 10210965
    Abstract: In some embodiments, the effect of uniformly dispersing carbon nanotubes in the material is achieved by including Ag in the carbon nanotubes to suppress the aggregation of carbon nanotubes when the electrical contacts are prepared.
    Type: Grant
    Filed: May 23, 2016
    Date of Patent: February 19, 2019
    Assignees: LSIS CO., LTD., Research & Business Foundation SungKyunKwan University
    Inventors: Wookdong Cho, Chuldong Moon, Hyeonjeong Choi, Wonyoung Kim, Seunghyun Baik, Dongmok Lee, Jeonghyun Sim
  • Apparatus and method for analyzing power system
    Patent number: 10210291
    Abstract: Methods for analyzing a power system is presented. In some embodiments, a method may analyze system data, reduce the analyzed system data based on a set reduction level, model a device and a high voltage direct-current (HVDC) system interlinked to the device, and reflect the modeled result to the reduced system data.
    Type: Grant
    Filed: July 1, 2016
    Date of Patent: February 19, 2019
    Assignee: LSIS CO., LTD.
    Inventor: Kyoung Ho Park
  • Data processing device and method for high voltage direct current transmission system
    Patent number: 10211749
    Abstract: A data processing device in a high voltage direct current (HVDC) transmission system is provided. The data processing device includes a measurement module measuring a voltage or current for one or more points in the HVDC system; a data processing unit generating measurement data units using measurement values measured at the measurement module; and a communication module using wavelength division multiplexing to transmit the measurement data units to the outside through one optical fiber, wherein the optical fiber includes a plurality of cores.
    Type: Grant
    Filed: May 13, 2015
    Date of Patent: February 19, 2019
    Assignee: LSIS CO., LTD.
    Inventors: Ho Hwan Park, Ming Sheng, Iwa Kartiwa