Patents Assigned to LSI
  • Content-Addressable Memory Architecture for Routing Raw Hit Lines Using Minimal Base Metal Layers
    Publication number: 20130170273
    Abstract: A CAM circuit includes a plurality of core memory cells, each cell including comparison logic for generating a local match signal based on a comparison between stored data in the cell and a compare value. The CAM circuit includes a plurality of local match lines, each local match line coupled with a corresponding cell and adapted to convey the local match signal generated by the cell. The CAM circuit includes combination logic for receiving respective local match signals generated by a subset of the cells and for generating an output word match signal having a value indicative of the local match signals. The subset of cells is arranged with at least one block having a word size that is limited based on available space for routing tracks used to convey the local match signals and at least one word match signal in a base metal layer across the cells.
    Type: Application
    Filed: December 29, 2011
    Publication date: July 4, 2013
    Applicant: LSI CORPORATION
    Inventors: Vinod Rachamadugu, Uddip Roy, Setti Shanmuhkheswara Rao
  • DC POWER RELAY
    Publication number: 20130169389
    Abstract: Provided is a DC power relay. The DC power relay includes a pair of fixed contacts disposed parallel to each other, a movable contact vertically movable with respect to the pair of fixed contacts, the movable contact being in connect with or being separated from the pair of fixed contacts, a pair of permanent magnets for guide an arc generated when the movable contact is in contact with or is separated from the pair of fixed contacts to the outside, and a damping magnet reducing a force generated in a direction in which the movable contact is separated from the fixed contacts when the movable contact is in contact with the fixed contacts.
    Type: Application
    Filed: December 27, 2012
    Publication date: July 4, 2013
    Applicant: LSIS CO., LTD.
    Inventor: Lsis Co., Ltd
  • Biquad Infinite Impulse Response System Transformation
    Publication number: 20130170585
    Abstract: A BIIR system includes a first delay line for receiving at least one input data sample and generating delayed input samples as a function of the input data sample. The BIIR system further includes a second delay line including multiple delay elements connected in series for generating delayed output samples. An input of one of the delay elements receives at least one output data sample of the BIIR system. A summation element in the BIIR system generates the output data sample of the BIIR system as a function of an addition of at least first and second signals and a subtraction of at least a third signal. The third signal includes a first delayed output sample generated by the second delay line multiplied by a first prescribed value. The first delayed output sample and the output data sample are temporally nonadjacent to one another.
    Type: Application
    Filed: January 4, 2012
    Publication date: July 4, 2013
    Applicant: LSI CORPORATION
    Inventors: Alexander Rabinovitch, Leonid Dubrovin
  • APPARATUS FOR CHARGING BATTERY IN ELECTRIC VEHICLE
    Publication number: 20130169212
    Abstract: Provided is an apparatus for charging battery in electric vehicle that includes a DC-DC converter unit formed in two channels for converting a charge of the low voltage battery to a power source by receiving a power source from the high voltage battery.
    Type: Application
    Filed: December 19, 2012
    Publication date: July 4, 2013
    Applicant: LSIS CO., LTD.
    Inventor: LSIS CO., LTD.
  • ELECTRONIC POWER METER AND METHOD FOR STORING DATA THEREOF
    Publication number: 20130173500
    Abstract: The present disclosure relates to an electronic power meter and a method for storing data thereof. The electronic power meter includes a communication unit that receives a critical peak pricing rate data, a memory that stores first metering data corresponding to the critical peak pricing rate data received via the communication unit, and second metering data corresponding to a predetermined varying pricing rate data, the memory storing the first metering data and the second metering data into different storage areas respectively, and a controller that calculates metering data by applying a corresponding rate for each time slot according to the varying pricing rate or the critical peak pricing rate.
    Type: Application
    Filed: December 19, 2012
    Publication date: July 4, 2013
    Applicant: LSIS CO., LTD.
    Inventor: LSIS Co., Ltd.
  • APPARATUS FOR CONTROLLING INTERIOR PERMANENT MAGNET SYNCHRONOUS MOTOR
    Publication number: 20130169203
    Abstract: Disclosed is an apparatus for controlling an IPMSM, the apparatus according to exemplary embodiments of the present disclosure including a first generating unit generating a q-axis reference voltage of a synchronous reference frame from a reference frequency, a current converter generating a current of the synchronous reference frame from a 3-phase current of the IPMSM, and a voltage controller generating a d-axis reference voltage compensating a voltage in response to a load change.
    Type: Application
    Filed: December 26, 2012
    Publication date: July 4, 2013
    Applicant: LSIS CO., LTD.
    Inventor: LSIS CO., LTD.
  • THREE-POSITION ACTUATOR FOR SWITCHGEAR
    Publication number: 20130168216
    Abstract: An actuator according to the present disclosure comprises: a disconnecting switch drive shaft; a first drive gear axially coupled to the drive shaft; a first follower gear in engagement with the first drive gear; a first drive disc having a first drive roller; a first rotary shaft axially supporting the first follower gear and the first drive disc; an earthing switch drive shaft; a second drive gear axially coupled to the earthing switch drive shaft; a second follower gear in engagement with the second drive gear; a second drive disc having a second drive roller; a second rotary shaft; a zeneva disc having a pair of groove portions which the first drive roller or the second drive roller is inserted into or separated from; and a main shaft for switching the disconnecting switch or the earthing switch in accordance with the rotation of the zeneva disc.
    Type: Application
    Filed: December 18, 2012
    Publication date: July 4, 2013
    Applicant: LSIS CO., LTD.
    Inventor: LSIS CO., LTD.
  • METHOD FOR HEAT DISSIPATION ON SEMICONDUCTOR DEVICE
    Publication number: 20130167895
    Abstract: A device and method wherein a thermo electric generator device is disposed between stacks of a multiple level device, or is provided on or under a die of a package and is conductively connected to the package. The thermo electric generator device is configured to generate a voltage by converting heat into electric power. The voltage which is generated by the thermo electric generator can be recycled back into the die itself, or to a higher-level unit in the system, even to a cooling fan.
    Type: Application
    Filed: February 25, 2013
    Publication date: July 4, 2013
    Applicant: LSI CORPORATION
    Inventor: LSI Corporation
  • POWER SWITCH HAVING SERIES-CONNECTED SWITCHING STAGES
    Publication number: 20130173077
    Abstract: A power switch of a processing device comprises a plurality of series-connected switching stages, with each switching stage comprising a plurality of parallel-connected switching devices and an inverter chain. The switching devices are coupled between a power supply input and a power supply output of the power switch. Each of the switching devices of a given one of the switching stages is driven by an output of a corresponding one of the inverters of the inverter chain of that stage. A control input of the first switching stage receives a control signal for controlling a state of the power switch, and a control input of each remaining switching stage is driven by a control output of an immediately preceding switching stage. The switching devices in one or more of the switching stages are configured to have different switching characteristics than the switching devices in at least one other stage.
    Type: Application
    Filed: December 29, 2011
    Publication date: July 4, 2013
    Applicant: LSI Corporation
    Inventors: Zu Xun Ye, Joseph Gerard Garofalo, Ming Chen, ChunXuan Pei, Xiaopeng Xie
  • METHOD OF CONTROLLING MULTI LEVEL CONVERTER
    Publication number: 20130169257
    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: Application
    Filed: December 28, 2012
    Publication date: July 4, 2013
    Applicants: INDUSTRY-ACADEMIC COOPERATION FOUNDATION YONSEI UNIVERSITY, LSIS CO., LTD.
    Inventors: LSIS CO., LTD., Industry-academic cooperation Foundation Yonsei University
  • APPARATUS AND METHOD FOR PROCESSING PROJECT INFORMATION FOR CROSS-PLATFORM
    Publication number: 20130173748
    Abstract: An apparatus and a method for processing project information for a cross-platform environment in an automation system field are provided. In the apparatus for processing project information according to an embodiment, a web server receives a request signal for project information from a client and transmits projection information corresponding to the request signal. A project server collects heterogeneous data transmitted from an automation system, converts the collected heterogeneous data into data in a predetermined format for transmitting to the client, and outputs the converted data to the client via the web server.
    Type: Application
    Filed: December 27, 2012
    Publication date: July 4, 2013
    Applicant: LSIS CO., LTD.
    Inventor: LSIS CO., LTD
  • APPARATUS AND METHOD FOR DETECTING FAILURE OF SWITCHING DEVICE IN INVERTER
    Publication number: 20130169288
    Abstract: Disclosed is an apparatus and method for detecting failure of a switching device in an inverter, the method including detecting a maximum value and a minimum value of a phase current inputted into a motor from synchronous angle information of the motor through a switching device in a predetermined leg of the inverter unit, and detecting failure of the switching device of the leg through an asymmetry ratio of the phase current.
    Type: Application
    Filed: December 26, 2012
    Publication date: July 4, 2013
    Applicant: LSIS CO., LTD.
    Inventor: LSIS CO., LTD.
  • CIRCUIT BREAKER PROVIDED WITH MECHANICAL TRIP MECHANISM
    Publication number: 20130168213
    Abstract: A circuit breaker having a mechanical trip mechanism enabling a circuit breaker to perform an emergency manual trip operation is provided. The circuit breaker includes: a fixed contactor connected to a circuit; a movable contactor movable to a closed state in which the movable contactor is in contact with the fixed contactor and a broken state in which the movable contactor is separated from the fixed contactor, an opening and closing mechanism configured to convert a rotational motion of a plurality of links and a rotational shaft to enable the movable contactor to be brought into contact with the fixed contactor or separated therefrom; a trip latch locked to or unlocked from a main link provided in the opening and closing mechanism; and an OFF button configured to rotate the trip latch to unlock the trip latch from the main link when manually pressed.
    Type: Application
    Filed: December 26, 2012
    Publication date: July 4, 2013
    Applicant: LSIS CO., LTD.
    Inventor: LSIS CO., LTD.
  • CONTROL APPARATUS FOR REGENERATIVE MEDIUM VOLTAGE INVERTER
    Publication number: 20130170256
    Abstract: A control apparatus for regenerative medium voltage inverter is disclosed. The control apparatus controls a switching of a PWM converter unit by generating a voltage compensating a power difference between an input and an output of the PWM converter unit.
    Type: Application
    Filed: December 11, 2012
    Publication date: July 4, 2013
    Applicant: LSIS CO., LTD.
    Inventor: Lsis Co., Ltd.
  • Scan Test Circuitry with Delay Defect Bypass Functionality
    Publication number: 20130173976
    Abstract: An integrated circuit comprises scan test circuitry and additional circuitry subject to testing utilizing the scan test circuitry. The scan test circuitry comprises at least one scan chain having a plurality of scan cells. The scan test circuitry further comprises scan delay defect bypass circuitry comprising a plurality of multiplexers arranged within said at least one scan chain. At least a given one of the multiplexers is configured to allow a corresponding one of the scan cells to be selectively bypassed in a scan shift configuration of the scan cells responsive to a delay defect associated with that scan cell. A delay defect bypass controller may be used to generate a bypass control signal for controlling the multiplexer between at least a first state in which the corresponding scan cell is not bypassed and a second state in which the corresponding scan cell is bypassed.
    Type: Application
    Filed: December 31, 2011
    Publication date: July 4, 2013
    Applicant: LSI Corporation
    Inventors: Ramesh C. Tekumalla, Prakash Krishnamoorthy
  • Systems and methods for efficient parameter modification
    Patent number: 8479086
    Abstract: Various embodiments of the present invention provide systems and methods for data processing.
    Type: Grant
    Filed: October 3, 2011
    Date of Patent: July 2, 2013
    Assignee: LSI Corporation
    Inventors: Haitao Xia, Shaohua Yang, Kenneth M. Hall, Mark A. Landreth
  • Methods and systems for migrating data between storage tiers
    Patent number: 8478911
    Abstract: Methods and systems for migrating data between storage tiers may include various operations, including, but not limited to: determining at least one activity index of at least one data storage region; receiving an input/output request addressing at least one data segment included in the at least one data storage region; qualifying a data segment addressed by the input/output request for migration to at least one higher-performing storage device; and adding a data segment reference associated with a qualified data segment to a priority queue according to the at least one activity index.
    Type: Grant
    Filed: January 31, 2011
    Date of Patent: July 2, 2013
    Assignee: LSI Corporation
    Inventors: Brian McKean, Donald Humlicek
  • Relative heat index based hot data determination for block based storage tiering
    Patent number: 8478939
    Abstract: Disclosed is a process for determining a heat index for a block of data, such as an extent, for storage tiering. Weighted scores are used for read and write operations, since solid state devices operate better with read operations than write operations. The heat index associated with each extent is a function of a base score, rather than an absolute value. The base score is determined by adding the number of extents in a hot tier plus the access score, divided by the number of extents in the hot tier. In this fashion, the base score measures the weighted I/O activity relative to the size of the hot tier.
    Type: Grant
    Filed: July 7, 2011
    Date of Patent: July 2, 2013
    Assignee: LSI Corporation
    Inventor: Anant Baderdinni
  • Vibration based user input for mobile devices
    Patent number: 8477463
    Abstract: A method, system, and apparatus of a vibration based user input for mobile devices are disclosed. In one embodiment, a method of controlling an electronic device includes receiving an impact signal, (e.g., a vibration generated by a user controlled impact with a surface mechanically coupled to a housing of the electronic device). The method further includes identifying a user command to the electronic device based on the impact signal, and performing a predesignated action (e.g., a mute, a power on, a power off, a volume increase, a volume decrease, a music track change, a call redirect, a call directed to voicemail, etc.) based on the user command. The user command may be identified using a number of user controlled impacts and an interval between a prior user controlled impact and a later user controlled impact.
    Type: Grant
    Filed: October 2, 2008
    Date of Patent: July 2, 2013
    Assignee: LSI Corporation
    Inventor: Ajith Ms
  • Performing data writes in parity protected redundant storage arrays
    Patent number: 8478938
    Abstract: A first and a second physical disk identifier, a physical Logical Block Address (LBA), a data length, and a span identifier are calculated from a data write operation. A first request command frame is created for retrieving the existing data block from the storage array, the first request command frame including at least one of the calculated parameters. At least one second request command frame is created for retrieving the at least one existing parity data block from the storage array, the at least one second request command frame including the calculated at least one second physical disk identifier and at least one of the calculated parameters. At least one new parity data block is calculated utilizing the existing data block, the new data block, and the at least one existing parity data block.
    Type: Grant
    Filed: October 28, 2010
    Date of Patent: July 2, 2013
    Assignee: LSI Corporation
    Inventor: Kapil Sundrani