Patents Assigned to LSI
  • System and method for security authentication of power system
    Patent number: 9054878
    Abstract: A method for security authentication of a power system includes transmitting, by at least one power system, a signal for requesting performing authentication on at least one remote control server or an external terminal with which the power system is to perform communication, to an authentication server, receiving, by the power system, an authentication certificate generated by the authentication server, and perform authentication on the remote control server or the external terminal by using the authentication certificate, and when authentication is completed by the authentication server, performing communication, by the power system, with the authentication-completed remote control server or the external terminal through an open-type communication network.
    Type: Grant
    Filed: September 27, 2013
    Date of Patent: June 9, 2015
    Assignee: LSIS Co., Ltd.
    Inventors: Won Seok Choi, Jong Ho Park, Yong Hark Shin
  • Apparatus for diagnosing relay contact of electric vehicle and method thereof
    Patent number: 9052364
    Abstract: Disclosed are an apparatus for diagnosing a relay contact of an electric vehicle and a method thereof. The method includes measuring a first voltage input from a high-voltage battery to an inverter; comparing the first voltage with a second voltage output through the high-voltage battery; identifying a detection time point of the first voltage when the first voltage is greater than the second voltage; and determining whether a high-voltage relay, which intermits an output voltage of the high-voltage battery, is malfunctioned based on the identified detection time point.
    Type: Grant
    Filed: May 13, 2013
    Date of Patent: June 9, 2015
    Assignee: LSIS Co., Ltd.
    Inventor: Duk Yun Cho
  • Ratio-adjustable sync mark detection system
    Patent number: 9053217
    Abstract: Systems, methods, devices, circuits for data processing, and more particularly to systems and methods for detecting a sync mark with a ratio-adjustable detection system.
    Type: Grant
    Filed: February 26, 2013
    Date of Patent: June 9, 2015
    Assignee: LSI Corporation
    Inventors: Rui Cao, Yu Kou, Shaohua Yang
  • Method of controlling multi level converter
    Patent number: 9052726
    Abstract: A method of controlling a multilevel converter is provided. In the method of controlling a multilevel converter according to an embodiment, a sub-module having the maximum voltage and a sub-module having the minimum voltage respectively are extracted from among a plurality of sub-modules. An amount of state variation of each of the plurality of sub-modules is determined. When the amount of state variation is not determined to be 0, a direction of a current flowing through the plurality of sub-modules is detected. A subsequent state of at least one sub-module is determined according to at least one of the amount of the state variation and current direction. Subsequently an arrangement time for sub-module values can be efficiently reduced while the number of the sub-modules increases in the voltage balancing.
    Type: Grant
    Filed: December 28, 2012
    Date of Patent: June 9, 2015
    Assignees: LSIS Co., Ltd., Industry-Academic Cooperation Foundation, Yonsei University
    Inventors: Seung Taek Baek, Gum Tae Son, Kyeon Hur, Jung Wook Park, Hee Jin Lee, Yong Ho Chung, Wook Hwa Lee
  • Electric vehicle charging apparatus, electric vehicle charging system including the same, and electric vehicle charging method
    Patent number: 9050901
    Abstract: Provided is an electric vehicle charging apparatus, and more particularly, an electric vehicle charging apparatus that periodically transmits a consumed amount of power to a cost claim server, so as to claim a cost per unit time. The charging apparatus includes a charging certification unit receiving certification information of the electric vehicle, a power measurement unit generating power consumption information as a result obtained by calculating an amount of power consumed for charging the electric vehicle, and a communication unit transmitting the certification information to a certification server, and transmitting the power consumption information to a cost claim server.
    Type: Grant
    Filed: September 28, 2012
    Date of Patent: June 9, 2015
    Assignee: LSIS Co., Ltd.
    Inventors: Yeong Chan Kim, Chauhdary Sajjad Hussain
  • SYSTEM AND METHOD TO INTERLEAVE MEMORY
    Publication number: 20150154114
    Abstract: A memory interleaving apparatus includes first and second interleavers. The first interleaver selectively interleaves information stored in a first memory in response to a sector select signal. The second interleaver selectively interleaves information stored in a second memory in response the sector select signal. The first interleaver is coupled with the second interleaver. A memory interleaving system includes an interleaver and a storage device. The interleaver is associated with a first sector size and a second sector size. The interleaver selectively interleaves information stored in a first memory and/or a second memory in response to a sector select signal. The storage device selectively provides the first masking seed and/or a second masking seed to the interleaver in response to the sector select signal. Corresponding methods are also disclosed.
    Type: Application
    Filed: January 31, 2014
    Publication date: June 4, 2015
    Applicant: LSI Corporation
    Inventors: Yang Han, Zongwang Li, Shaohua Yang, Kaichi Zhang
  • ELECTRIC VEHICLE CHARGER
    Publication number: 20150151643
    Abstract: Provided is an electric vehicle charger.
    Type: Application
    Filed: July 17, 2014
    Publication date: June 4, 2015
    Applicant: LSIS CO., LTD.
    Inventor: Ki Young MOON
  • INVERTER FOR ELECTRIC VEHICLE
    Publication number: 20150151695
    Abstract: An inverter for an electric vehicle is provided. The inverter for an electric vehicle, which controls an RPM of a motor for the electric vehicle, the inverter including a busbar connected to a power semiconductor module for supplying current, a current sensor measuring the current passing through the busbar, and a control board on which the current sensor is mounted, the control board controlling the motor for the electric vehicle according to a result measured by the current sensor. The busbar is disposed to vertically pass through the current sensor and control board.
    Type: Application
    Filed: November 21, 2014
    Publication date: June 4, 2015
    Applicant: LSIS CO., LTD.
    Inventors: SUNG JUN OH, CHANG MIN JUNG, BEUM JUN KIM, UNG HOE KIM, KI YOUNG MOON
  • BUSBAR COUPLING DEVICE ASSEMBLY
    Publication number: 20150155692
    Abstract: Provided is a busbar coupling device. The busbar coupling device includes: a plate including a first side and a second side disposed opposite to each other; a first end wall part protruding and extending in a direction that the first side faces at a first end part in a length direction of the plate; a first protrusion part disposed at the plate, spaced from the first end wall part, and protruding in the direction that the first side faces; a second end wall part protruding and extending from a second end part disposed opposite to the first end part to a direction that the second side faces in the length direction of the plate; and a second protrusion part disposed at the plate, spaced from the first end wall part, and protruding in the direction that the first side faces.
    Type: Application
    Filed: November 21, 2014
    Publication date: June 4, 2015
    Applicant: LSIS CO., LTD.
    Inventors: Hyun Si HWANG, Sung Jun OH, Ki Young MOON
  • APPARATUS AND METHOD FOR CONTROLLING INVERTER
    Publication number: 20150155773
    Abstract: An apparatus and a method for controlling an inverter are disclosed. The apparatus determines a 3-phase current by receiving a 2-phase current from a leg-shunt resistor arranged at an emitter terminal of a lower switching element in an inverter unit of an inverter, and determines whether there is an abnormality generated in the 3-phase current, to correct the abnormality in the current.
    Type: Application
    Filed: November 21, 2014
    Publication date: June 4, 2015
    Applicant: LSIS CO., LTD.
    Inventors: YUSEUK JUNG, JAE MOON LEE
  • ELECTRICAL CONTACT MATERIALS AND METHOD FOR PREPARING THE SAME
    Publication number: 20150155066
    Abstract: Disclosed are electrical contact materials and a method for preparing the same. The electrical contact material includes (i) one or more kinds of metals selected from the group consisting of silver (Ag), copper (Cu) and gold (Au), and an alloy of nickel (Ni); and (ii) carbon nano tubes (CNTs) coated with Ag nanoparticles, Ag plated CNTs, or Ag nanowires, or (i) one or more kinds of metals selected from the group consisting of Ag, Cu, Ni and Au; (ii) a metal oxide that is cadmium oxide, indium oxide, tin oxide, zinc oxide or mixture thereof; and (iii) CNTs coated with Ag nanoparticles, Ag plated CNTs, or Ag nanowires. Accordingly, it is possible to reduce the content of high-priced Ag and to obtain excellent electrical and mechanical properties.
    Type: Application
    Filed: November 6, 2014
    Publication date: June 4, 2015
    Applicants: LSIS CO., LTD., Research & Business Foundation SUNGKYUNKWAN UNIVERSITY
    Inventors: Ki Hun PARK, In Chan SONG, Seung Hyun BAIK, Dong Mok LEE, Jeong Hyeon SIM
  • ELECTRIC DEVICE FOR ELECTRIC VEHICLE
    Publication number: 20150156896
    Abstract: An electric device for an electric vehicle is provided. The electric device includes a lower case, an upper case coupled to an upper portion of the lower case, a first printed circuit board (PCB) fixed to the lower case and comprising a first connector, and a second PCB fixed to the upper case and comprising a second connector. The first connector and the second connector are vertically disposed to correspond to each other, and the first connector is coupled to the second connector by coupling the lower case to the upper case to connect the first PCB to the second PCB.
    Type: Application
    Filed: November 17, 2014
    Publication date: June 4, 2015
    Applicant: LSIS CO., LTD.
    Inventor: Han Uk JEONG
  • APPARATUS FOR CONTROLLING INDUCTION MOTOR
    Publication number: 20150155815
    Abstract: An apparatus for controlling an induction machine is disclosed, wherein a magnitude of a current outputted to the induction machine to an inverter is determined by the apparatus to determine a voltage amount that compensates the command voltage in response to the magnitude of the current, and a voltage compensation amount is added to a command voltage determined from a voltage-frequency relationship according to a relevant voltage compensation amount to output a final command voltage.
    Type: Application
    Filed: November 5, 2014
    Publication date: June 4, 2015
    Applicant: LSIS CO., LTD.
    Inventor: Anno YOO
  • BIDIRECTIONAL PACKET TRANSFER FAIL-OVER SWITCH FOR SERIAL COMMUNICATION
    Publication number: 20150156060
    Abstract: Disclosed is a bidirectional packet transfer fail-over switch for serial communication. The bidirectional packet transfer fail-over switch for serial communication includes a memory configured to divide packet data, which is transmitted or received for bidirectional communication between a plurality of communication devices, in units of certain data, and store the divided data, and a control unit configured to receive a trigger signal, indicating whether the packet data is received, from the memory, determine a priority according to an order where the packet data is received, and transmit the packet data to another communication device.
    Type: Application
    Filed: November 13, 2014
    Publication date: June 4, 2015
    Applicant: LSIS CO., LTD.
    Inventor: Sung Sik HAM
  • WIDE PORT EMULATION AT SERIAL ATTACHED SCSI EXPANDERS
    Publication number: 20150154138
    Abstract: Methods and structure for emulating wide ports at an expander are provided. An exemplary system includes a Serial Attached Small Computer System Interface (SAS) expander. The expander includes a plurality of physical links, and a controller. The controller is able to identify a physical link coupled with a device, to generate a plurality of virtual physical links that are configured as a virtual wide port coupled with the device, and to present the virtual wide port at the expander in place of the physical link.
    Type: Application
    Filed: December 4, 2013
    Publication date: June 4, 2015
    Applicant: LSI CORPORATION
    Inventors: Shankar More, Mandar Joshi, Vidyadhar Pinglikar
  • INVERTER FOR ELECTRIC VEHICLE
    Publication number: 20150156901
    Abstract: Provided is an inverter for an electric vehicle. The inverter for the electric vehicle includes a heat sink, a power semiconductor module disposed on an upper portion of the heat sink, a control board connected to the power semiconductor module, a light source coupled to the control board, a case coupled to the upper portion of the heat sink to cover the power semiconductor module and the control board, and an indicator coupled to the case to transmit light emitted from the light source therethrough. The indicator is double injection-molded to the case.
    Type: Application
    Filed: December 1, 2014
    Publication date: June 4, 2015
    Applicant: LSIS CO., LTD.
    Inventors: SEUNG HUN LEE, KI YOUNG MOON, SUNG JUN OH
  • Lighting
    Patent number: D731690
    Type: Grant
    Filed: July 11, 2014
    Date of Patent: June 9, 2015
    Assignee: LSI Industries, Inc.
    Inventors: John D. Boyer, Daniel Hutchens, Eric Jon Mooar
  • Lighting
    Patent number: D731691
    Type: Grant
    Filed: July 11, 2014
    Date of Patent: June 9, 2015
    Assignee: LSI Industries, Inc.
    Inventors: John D. Boyer, Daniel Hutchens, Eric Jon Mooar
  • Lighting
    Patent number: D731692
    Type: Grant
    Filed: July 11, 2014
    Date of Patent: June 9, 2015
    Assignee: LSI Industries, Inc.
    Inventors: John D. Boyer, Daniel Hutchens, Eric Jon Mooar
  • Lighting
    Patent number: D731693
    Type: Grant
    Filed: July 11, 2014
    Date of Patent: June 9, 2015
    Assignee: LSI Industries, Inc.
    Inventors: John D. Boyer, Daniel Hutchens, Eric Jon Mooar