Patents Assigned to LSI
  • Springy clip type apparatus for fastening power semiconductor
    Patent number: 9030825
    Abstract: The present disclosure relates to an apparatus for fastening a power semiconductor using an integral springy (elastic) clip, capable of fixing a power semiconductor, such as a diode and a MOSFET, using elasticity of a U-shaped clip by integrally molding the clip onto a housing of a plastic module. The apparatus includes an elastic (springy) clip integrally molded onto a lower surface of the housing and downwardly curved into a U-like shape in a bridge module in which a bridge of the power semiconductor protrudes through a through hole of the housing to be connected to a printed circuit board, whereby the power semiconductor is fixed by a force that the housing presses the power semiconductor.
    Type: Grant
    Filed: September 13, 2012
    Date of Patent: May 12, 2015
    Assignee: LSIS Co., Ltd.
    Inventor: Min Heo
  • CIRCUIT BREAKER
    Publication number: 20150123751
    Abstract: A vacuum interrupter includes a fixed contact and a movable contact; a driving unit including a main shaft and a plurality of links interlocked with the main shaft, to supply a driving force to open and close the vacuum interrupter; a power transmission unit to transmit a driving force of the driving unit to the movable contact; an over-current relay to detect a fault current and to output a trip signal to break a large-scaled current conduction; a trip unit to generate and transmit a mechanical operation force to the driving unit when a trip signal is output from the over-current relay; and a Thomson drive including a Thomson coil and a repulsive plate, to rotate the main shaft to an opening position or to transmit the trip signal to the trip unit, to promptly breaking a fault current.
    Type: Application
    Filed: October 22, 2014
    Publication date: May 7, 2015
    Applicant: LSIS CO., LTD.
    Inventors: Hyun Wook LEE, Young Woo JEONG, Jin Hyun PARK
  • DEVICE QUALITY METRICS USING UNSATISFIED PARITY CHECKS
    Publication number: 20150128006
    Abstract: An apparatus having a device and a circuit is disclosed. The device is configured to convey a codeword. The circuit is configured to (i) receive the codeword from the device, (ii) generate a syndrome by performing a portion less than all of an iterative decoding procedure on the codeword, (iii) generate a value by counting a number of unsatisfied parity checks in the syndrome and (iv) generate a quality metric of the device according to the value.
    Type: Application
    Filed: December 10, 2013
    Publication date: May 7, 2015
    Applicant: LSI Corporation
    Inventors: AbdelHakim S. Alhussien, Earl T. Cohen, Erich F. Haratsch
  • REDUCTION OR ELIMINATION OF A LATENCY PENALTY ASSOCIATED WITH ADJUSTING READ THRESHOLDS FOR NON-VOLATILE MEMORY
    Publication number: 20150127883
    Abstract: Channel information and channel conditions that are determined by an Offline Tracking process are used to determine whether or not an adjustment to the read reference voltage can be avoided altogether without detrimentally affecting performance, or, alternatively, to determine a precision with which a read reference voltage adjustment should be made. If it is determined based on the channel conditions that a read reference voltage adjustment can be avoided altogether, read performance is improved by reducing the probability that a read reference voltage adjustment needs to be made during normal read operations. If it is determined based on the channel conditions that a read reference voltage adjustment needs to be made with a particular precision, the read reference voltage is adjusted with that precision.
    Type: Application
    Filed: November 22, 2013
    Publication date: May 7, 2015
    Applicant: LSI Corporation
    Inventors: Zhengang Chen, Erich F. Haratsch, Sundararajan Sankaranarayanan
  • ERGONOMIC, LIGHTED UTERINE MANIPULATOR WITH CAUTERY
    Publication number: 20150127016
    Abstract: A uterine manipulator includes a sound and a body. The sound has a selectively actuatable anchor disposed proximate a distal end and an operating mechanism spaced from the anchor for controlling actuation of the anchor. The body has a passage therethrough adapted to receive the sound passed proximally through the body to a position in which the operating mechanism is accessible proximally of the body and the anchor extends distally.
    Type: Application
    Filed: November 1, 2013
    Publication date: May 7, 2015
    Applicant: LSI Solutions, Inc.
    Inventor: Jude S. Sauer
  • TRANSFORMER FOR POWER LINE COMMUNICATION
    Publication number: 20150123644
    Abstract: Disclosed is a transformer for power line communication, capable of performing power line communication without being influenced by voltage attenuation due to voltage conversion. The transformer for power line communication includes: a transforming unit configured to convert a high primary voltage into a low secondary voltage, or convert a low secondary voltage into a high primary voltage; a separation unit configured to separate a data signal from a primary voltage input thereto; and a coupling unit configured to couple the data signal with the low secondary voltage.
    Type: Application
    Filed: October 10, 2014
    Publication date: May 7, 2015
    Applicant: LSIS CO., LTD.
    Inventors: Chang Sung YOU, Seong Joon LEE
  • CIRCUIT BREAKER
    Publication number: 20150122626
    Abstract: A circuit breaker includes: a main body housing circuit-breaking parts; a terminal portion exposed outside the main body; a lug-type terminal block attached to the terminal portion and connecting a wire to the terminal portion; and an insulating member provided between the lug-type terminal block and the main body.
    Type: Application
    Filed: September 24, 2014
    Publication date: May 7, 2015
    Applicant: LSIS CO., LTD.
    Inventor: Seong Yeol CHO
  • APPARATUS FOR CONTROLLING LDC IN ELECTRIC VEHICLE
    Publication number: 20150123471
    Abstract: Embodiments provide an apparatus controlling a low voltage DC-DC converter (LDC) in an electric vehicle that enables the LDC to autonomously wake up and operate when at least one of an ignition IGN signal and other electric components linked to the LDC is in the ON state and enables the LDC to recognize that other electric components linked to the LDC are all in the OFF state, and autonomously operate in a power-off state when other electric components linked to the LDC are all in the OFF state.
    Type: Application
    Filed: August 11, 2014
    Publication date: May 7, 2015
    Applicant: LSIS CO., LTD.
    Inventors: Dong Su LEE, Woo Sup KIM
  • Data recovery in a raid controller by offloading contents of DRAM to a flash module on an SAS switch
    Patent number: 9026846
    Abstract: Disclosed is a system and method for providing data integrity for pinned cache even if a RAID controller card fails while it has pinned cache or a memory module goes bad. A controller is enabled to use complete cache lines even if pinned cache is present, thereby enabling other virtual disks to run in write-back mode when pinned cache is present.
    Type: Grant
    Filed: May 3, 2013
    Date of Patent: May 5, 2015
    Assignee: LSI Corporation
    Inventors: Prafull Tiwari, Madan Mohan Munireddy
  • Host based enumeration and configuration for computer expansion bus controllers
    Patent number: 9026687
    Abstract: A controller includes a communications interface configured to communicatively couple a host to a computer expansion bus configured to perform peripheral device enumeration and configuration. The computer expansion bus is configured to communicatively couple the host to a peripheral device. The controller also includes a processor configured to facilitate enumeration and configuration by the host of the peripheral device. The controller further includes a memory having computer executable instructions stored thereon. The computer executable instructions are configured for execution by the processor to facilitate enumeration and configuration of a topology associated with the communicative coupling between the host and the peripheral device, where the topology is enumerated and configured by the host.
    Type: Grant
    Filed: December 26, 2013
    Date of Patent: May 5, 2015
    Assignee: LSI Corporation
    Inventors: Nilesh S. Govande, Rajendra Singh
  • Systems and methods for anti-causal noise predictive filtering in a data channel
    Patent number: 9026572
    Abstract: Various embodiments of the present invention provide systems and methods for data processing. As an example, a data processing circuit is disclosed that includes a data detector circuit. The data detector circuit includes an anti-causal noise predictive filter circuit and a data detection circuit. In some cases, the anti-causal noise predictive filter circuit is operable to apply noise predictive filtering to a detector input to yield a filtered output, and the data detection circuit is operable to apply a data detection algorithm to the filtered output derived from the anti-causal noise predictive filter circuit.
    Type: Grant
    Filed: August 29, 2011
    Date of Patent: May 5, 2015
    Assignee: LSI Corporation
    Inventors: Wu Chang, Victor Krachkovsky, Fan Zhang, Shaohua Yang
  • Priority based connection arbitration in a SAS topology to facilitate quality of service (QoS) in SAS transport
    Patent number: 9026704
    Abstract: A method of priority based connection arbitration in a SAS topology is disclosed introducing a PRIORITY field to an SAS open Address Frame (OAF). As the expander arbitrates the multiple OAFs in competition for an Expander Link, it compares the PRIORITY fields of the arbitrating OAFs. The OAF with highest value of PRIORITY is awarded the destination connection path. In case of equal PRIORITY, the next arbitration is based on the value of Arbitration Wait Time (AWT). This priority based arbitration ensures high availability of SAS connection links to the SAS targets with high priority OAFs which in turn will lead to better quality of service for those SAS targets. PRIORITY field in the OAF is set by the SAS targets based on the current OAF priority and also set by directly attached SAS storage expanders through a modification of the OAF during transit through the expander.
    Type: Grant
    Filed: February 25, 2013
    Date of Patent: May 5, 2015
    Assignee: LSI Corporation
    Inventors: Shankar T. More, Vidyadhar C. Pinglikar, Prasad Ramchandra Kadam
  • Method and system for detecting multiple expanders in an SAS topology having the same address
    Patent number: 9026706
    Abstract: Methods, systems, and processor-readable media are disclosed for detecting multiple expanders in a SAS topology having the same address. A root expander can be connected to a plurality of expanders, wherein one or more expanders among the plurality of expanders possesses a same SAS address as the root expander. The same SAS address can be identified and stored in a route table against a physical layer identifier through which the expander(s) communicate with the root expander in order to assist in identifying duplicate expanders in the SAS topology.
    Type: Grant
    Filed: December 14, 2012
    Date of Patent: May 5, 2015
    Assignee: LSI Corporation
    Inventors: Raghavendra Channagiri Nagendra, Giridhar Danayakanakeri, Prashant Prakash Yendigiri
  • Method for controlling inverter
    Patent number: 9024554
    Abstract: A method for controlling an inverter in a system including a load, a motor for driving the load, and an inverter for operating the motor comprises when a load amount of the load is reduced to below a sleep level, checking whether a time corresponding to a sleep delay has lapsed; when the load amount of the load is still below the sleep level even after the sleep delay, varying an operating frequency of the motor, and if there is no change in a feedback from the load in response to the variation in the operating frequency, controlling the inverter to enter a sleep mode.
    Type: Grant
    Filed: January 31, 2013
    Date of Patent: May 5, 2015
    Assignee: LSIS Co., Ltd.
    Inventor: Hong Min Yun
  • Luminaires and luminaire mounting structures
    Patent number: 9022621
    Abstract: A luminaire having a housing defining one or more unthreaded mounting holes therein, a connector having a head and a shaft, the connector shaft located at least partially in one of the one or more mounting holes, the connector shaft comprised of a pliable material, a circuit board mounted to the housing by the connector head, the circuit board populated with one or more LEDs, and a lens resting against and spaced form the circuit board by the connector head.
    Type: Grant
    Filed: November 5, 2013
    Date of Patent: May 5, 2015
    Assignee: LSI Industries, Inc.
    Inventors: John D. Boyer, Daniel Hutchens, Eric Jon Mooar
  • Pattern-dependent short media defect detection
    Patent number: 9026876
    Abstract: Systems and methods for computing sign disagreement between signals may implement one or more operations including, but not limited to: receiving an extrinsic log likelihood ratio (LLR) value; incrementing a sign-disagreement counter according to a sign disagreement between the extrinsic LLR value and an a priori LLR value; providing a value of the sign-disagreement counter to a binary short media defect (SMD) detector; and detecting one or more consecutive sign disagreements between an extrinsic output of a detector and an extrinsic output of a decoder.
    Type: Grant
    Filed: September 28, 2012
    Date of Patent: May 5, 2015
    Assignee: LSI Corporation
    Inventors: Fan Zhang, Wu Chang
  • Arbitration suspension in a SAS domain
    Patent number: 9026843
    Abstract: Systems and methods presented herein provide for managing connections in a SAS domain comprising at least first and second expanders. The first expander detects a failure of the initiator and indicates a change in the SAS domain to the second expander. The second expander detects an increase in arbitration wait time for a connection between the initiator and the target device, determines a race condition exists in the second expander, denies the connection between the initiator and the target device, directs the target device to wait for another connection, performs a discovery of the domain based on the discovery request from the first expander, and prevents a subsequent connection by the target device to the initiator after discovery completes.
    Type: Grant
    Filed: August 8, 2013
    Date of Patent: May 5, 2015
    Assignee: LSI Corporation
    Inventors: Reid A. Kaufmann, Charles D. Henry, Jeffrey D. Weide
  • Method for format savings in coherently written fragmented sectors
    Patent number: 9026891
    Abstract: A method and system for performing a shortened acquire cycle for at least one fragment of at least one data sector having coherently written fragments, the coherently written fragments being written during a single rotation of a storage medium. The method includes performing a full acquire cycle for a first fragment of a particular data sector of the at least one data sector. The method further includes reusing at least a portion of the acquisition information of the first fragment to perform a shortened acquire cycle for at least one subsequent coherently written fragment. The method also includes reusing at least a portion of the acquisition information of the first fragment to perform a shortened acquire cycle for at least one subsequent coherently written fragment. Additionally, the method includes performing the shortened acquire cycle for the at least one subsequent coherently written fragment.
    Type: Grant
    Filed: March 14, 2013
    Date of Patent: May 5, 2015
    Assignee: LSI Corporation
    Inventors: Scott M. Dziak, Jeffrey P. Grundvig, Jason D. Byrne
  • Transmitter training using receiver equalizer coefficients
    Patent number: 9025655
    Abstract: A method of adjusting a post-cursor tap weight in a transmitter FIR filter in a high-speed digital data transmission system. A receiver, over a forward channel, receives a signal from the transmitter and equalizes the received signal using an adaptive analog equalizer coupled to the forward channel and a decision feedback equalizer (DFE) coupled to the analog equalizer. A gain coefficient used to adjust the peaking by the analog equalizer is adapted using an error signal generated by the DFE. The post-cursor tap weight of the transmitter filter is adjusted up or down based on a comparison of the gain coefficient to a set. of limits. The post-cursor tap weight is transmitted to the transmitter over a reverse channel and then equalizers in the receiver readapt. Alternatively, eye opening data and a DFE tap coefficient are used to determine whether the post-cursor tap weight is adjusted up or down.
    Type: Grant
    Filed: November 6, 2013
    Date of Patent: May 5, 2015
    Assignee: LSI Corporation
    Inventors: Rajesh Ramadoss, Mohammad S. Mobin, Thomas F. Gibbons, Jr.
  • Lighting fixture
    Patent number: D728843
    Type: Grant
    Filed: May 22, 2014
    Date of Patent: May 5, 2015
    Assignee: LSI Industries, Inc.
    Inventors: Mark J. Krogman, Jeffrey T. Bourne