Patents Assigned to LSI
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Publication number: 20150249555Abstract: In described embodiments, process, voltage, temperature (PVT) compensation in a serializer/deserializer (SerDes) device employs a closed loop adaptation compensation that is incorporated into the SerDes receiver adaptation process. A detection method, where the adapted decision feedback equalizer (DFE) target level (e.g., tap H0) is monitored, employs this DFE target level when implementing a closed loop variable gain amplifier adaptation. The DFE target level in conjunction with the VGA level is used to control the PVT setting to maintain target SerDes data path gain by detecting aPVT corner condition. The detected PVT corner condition is employed to generate a control signal to further adjust the LEQ and DFE data path differential pair gain as required by the PVT condition.Type: ApplicationFiled: April 3, 2014Publication date: September 3, 2015Applicant: LSI CorporationInventors: Mohammad S. Mobin, Weiwei Mao, Chintan M. Desai, Freeman Y. Zhong, Ye Liu
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Patent number: 9123491Abstract: A gas insulated switchgear includes: an enclosure; a stationary contact arm fixedly installed within the enclosure; a movable contact arm installed to be moved within the enclosure such that it is brought into contact with or separated from the stationary contact arm; a cam reciprocating between closing and opening positions to move the movable contact arm; and an actuator moving the cam, wherein the cam includes first and second cam surfaces, and when the cam moves to an opening position by the actuator, movement acceleration of the movable contact arm by the first cam surface is greater than movement acceleration by the second cam surface and a movement distance of the movable contact arm by the first cam surface is smaller than a movement distance by the second cam surface.Type: GrantFiled: December 18, 2013Date of Patent: September 1, 2015Assignee: LSIS CO., LTD.Inventor: Jae Min Yang
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Patent number: 9123488Abstract: The present invention relates to a safety shutter of a vacuum circuit breaker, and more particularly, to a safety shutter of a vacuum circuit breaker which is mounted on a cradle of a drawable type vacuum circuit breaker and opened or closed when a main body is retracted or pulled out to protect the safety of users from a charging part.Type: GrantFiled: August 28, 2014Date of Patent: September 1, 2015Assignee: LSIS Co., Ltd.Inventor: Min Kyu Seo
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Patent number: 9123419Abstract: Methods of complementary pairing of memory cells are described. These methods include two physical memory cells in a complementary pair, a complementary pair of reference cells for each erase block, and a physical complementary pair storing multiple data bits.Type: GrantFiled: December 3, 2012Date of Patent: September 1, 2015Assignee: Halo LSI, Inc.Inventors: Nori Ogura, Tomoko Ogura, Seiki Ogura
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Patent number: 9123496Abstract: A molded case circuit breaker comprises: a plurality of stationary contact arms; a plurality of movable contact arms each having a plurality of contact arm pieces; a switching mechanism providing a driving force to move the movable contact arms to a closing position or an opening position; a driving shaft configured to provide a driving force for simultaneously rotating the movable contact arms; a link configured to transmit a driving force; a holder configured to rotate the movable contact arms; an upper arc barrier configured to prevent arcs from moving to a rear side from an upper side of the movable contact arms; and a torsion spring having one end portion contacting upper surface of the movable contact arms on the opening position, so as to provide an elastic force to the movable contact arms such that the movable contact arms are rotated to the closing position.Type: GrantFiled: October 4, 2013Date of Patent: September 1, 2015Assignee: LSIS Co., Ltd.Inventor: Jun Yong Jang
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Publication number: 20150242133Abstract: Methods and structure for reconfiguring storage systems are provided. One exemplary embodiment is a storage controller. The storage controller includes a memory that stores multiple profiles that are each designated for a different type of Input/Output processing workload from a host, and each include settings for managing communications with coupled storage devices. Each type of workload is characterized by a pattern of Input/Output requests from the host. The storage controller also includes a control unit able to process host Input/Output requests at the storage controller in accordance with a first profile, identify a change in type of workload from the host, and load a second profile designated for the changed type of workload in place of the first profile. The control unit is also able to process host Input/Output requests at the storage controller in accordance with the second profile.Type: ApplicationFiled: February 21, 2014Publication date: August 27, 2015Applicant: LSI CORPORATIONInventors: Hubbert Smith, Kimberly K. Leyenaar
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Publication number: 20150243617Abstract: A bonding pad arrangement and method of bonding a flip-chip semiconductor device to a substrate using copper pillars and solder to join die pads on the flip-chip to substrate pads on the substrate. Each substrate pad has an offset from a respective die pad at specific temperature, the offset for each of the substrate pads is substantially the same, and the offset is determined as a function of the size of the flip-chip device, a difference between a solidification temperature of the solder and the specific temperature, and a difference between a coefficient of thermal expansion of the flip-chip device and a coefficient of thermal expansion of the substrate. Alternatively, the offset for each of the substrate pads is the above-determined offset scaled as a function of a distance the respective die pad is from the centroid of the device.Type: ApplicationFiled: February 26, 2014Publication date: August 27, 2015Applicant: LSI CorporationInventors: John W. Osenbach, Suzanne M. Emerich, David Crouthamel, Steven D. Cate
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Publication number: 20150243310Abstract: Systems, methods, devices, circuits for data processing, and more particularly to systems and methods for determining a down track distance between two or more read heads on a read/write head assembly.Type: ApplicationFiled: March 18, 2014Publication date: August 27, 2015Applicant: LSI CorporationInventors: Jeffrey P. Grundvig, Richard Rauschmayer, Jin Lu
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Publication number: 20150243322Abstract: Systems, methods, devices, circuits for data processing, and more particularly to systems and methods for processing servo data using two or more sensing heads.Type: ApplicationFiled: March 18, 2014Publication date: August 27, 2015Applicant: LSI CorporationInventors: Jeffrey P. Grundvig, Richard Rauschmayer, Yu Liao, Jin Lu, Edward J. D'Avignon
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Publication number: 20150243321Abstract: An exemplary hard disk (HD) track has a full overhead section followed by user sections interleaved with intervening partial overhead sections that are too short for an HD drive (HDD) to attain sufficient timing lock using only one partial overhead section, but long enough for the drive to attain sufficient timing lock using multiple partial overhead sections to read user data from the user section immediately following the partial overhead section where sufficient timing lock is attained. The drive begins, but does not finish, attaining timing lock based on the first partial overhead section, but the drive does finish attaining timing lock based on the last partial overhead section. The drive can also read user data in subsequent user sections by maintaining or re-attaining sufficient timing lock using each successive partial overhead section. Increased user data storage is achieved without significantly impacting average latency of HDD read sessions compared to conventional HD drives.Type: ApplicationFiled: March 20, 2014Publication date: August 27, 2015Applicant: LSI CorporationInventors: Kurt J. Worrell, Jason D. Byrne, Scott M. Dziak
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Publication number: 20150243311Abstract: Systems, methods, devices, circuits for data processing, and more particularly to systems and methods for reporting a synchronization indication and for applying a synchronization window. As an example, a system is discussed that includes: a head assembly including a first read head and a second read head; a down track distance calculation circuit operable to calculate a down track distance between the first read head and the second read head; and a synchronization mark detection circuit. The synchronization mark detection circuit is operable to: assert a synchronization mark window based at a location based at least in part on the down track distance; query a first data set derived from the first read head for a synchronization mark occurring within the synchronization mark window; and query a second data set derived from the second read head for the synchronization mark occurring within the synchronization mark window.Type: ApplicationFiled: March 18, 2014Publication date: August 27, 2015Applicant: LSI CorporationInventors: Jeffrey P. Grundvig, Richard Rauschmayer, Scott M. Dziak
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Publication number: 20150243363Abstract: An apparatus having a circuit and an interface to a nonvolatile memory is disclosed. The circuit is configured to (i) perform one or more attempts of a soft-decision decode of data stored in the nonvolatile memory, where soft-decision decode uses a plurality of log likelihood ratio values stored in a table, (ii) generate one or more adjusted log likelihood ratio values by adding a constant value to one or more of the log likelihood ratio values in response to a failure to decode the data using the log likelihood ratio values and (iii) re-decode the data using the adjusted log likelihood ratio values.Type: ApplicationFiled: March 3, 2014Publication date: August 27, 2015Applicant: LSI CorporationInventors: Yunxiang Wu, Zhengang Chen, AbdelHakim S. Alhussien, Sundararajan Sankaranarayanan, Erich F. Haratsch
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Publication number: 20150243534Abstract: A bonding apparatus and method of bonding copper bond wires to bond pads on an integrated circuit devices attached to a substrate. A heater block heats the devices and substrate prior to and during wire bonding. A clamp presses the substrate down onto the heater block during wire bonding and thereby forms a region of the substrate isolated from the remainder of the substrate. A bonder head creates ball bonds as it attaches one end of the bond wires to the bond pads on the devices within the isolated region. The bonder head also attaches the other end of the bond wires to substrate pads adjacent the devices being wire bonded. To prevent corrosion of the ball bonds, a gas source floods the substrate and the attached devices that have not yet wire bonded with a purge gas while the heater block heats the substrate and the attached devices.Type: ApplicationFiled: April 15, 2014Publication date: August 27, 2015Applicant: LSI CorporationInventors: John W. Osenbach, BeiQi Wang, Steven Lowell Haehn, Mintra Veeranarong
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Patent number: 9118254Abstract: Disclosed is a DC-DC converter. The DC-DC converter includes a power input unit to which power is applied, a first module comprising a first transformer and a second transformer to output a first output power transformed according to operations of a first switch and a second switch connected with the first transformer and the second transformer by using the applied power, a second module comprising a third transformer and a fourth transformer to output a second output power transformed according to operations of a third switch and a fourth switch connected with the third transformer and the fourth transformer by using the applied power, an output unit to output a sum of the first output power and the second output power, and a controller to control an interleaving operations between the first module and the second module.Type: GrantFiled: July 1, 2013Date of Patent: August 25, 2015Assignees: LSIS Co., Ltd., SEOUL NATIONAL UNIVERSITY R&DB FOUNDATIONInventors: Woo Sup Kim, Jae Ho Lee, Chun Suk Yang, Seoung Woon Lee, Bo Hyung Cho
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Patent number: 9116014Abstract: The present disclosure enables comparison of an energy consuming propensity of each energy consumer with that of other energy consumers. To this end, energy usage information of each energy consumer and comparison conditions (size of house, the number of families, energy consuming regions) are collected, and energy consuming propensities of other energy consumers are compared with energy consuming propensity of each energy consumer similar in terms of living environment, and the comparison is shown. A variety of statistical information for comparison is provided through an IHD (In-Home Display) installed at each house, whereby the energy consumers can easily and conveniently evaluate his own energy consuming propensity. An objective evaluation of his or her position related to energy consumption of other energy consumers promotes more active energy conservation and more rational energy consumption by being stimulated by the energy consumption of other energy consumers.Type: GrantFiled: February 16, 2012Date of Patent: August 25, 2015Assignee: LSIS Co., Ltd.Inventors: Jung Hwan Oh, Jae Seong Park, Dongmin Son
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Patent number: 9118509Abstract: A gateway device is provided. The gateway device for relaying communication between an automotive network communication device and an industrial field bus communication device includes: a Controller Area Network (CAN) input unit for receiving a CAN input data frame from an external; and a conversion unit for converting the received CAN input data frame into a Modbus output data frame according to a predetermined method.Type: GrantFiled: June 22, 2012Date of Patent: August 25, 2015Assignee: LSIS Co., Ltd.Inventor: Sung Jin Jang
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Patent number: 9117605Abstract: 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: GrantFiled: December 27, 2012Date of Patent: August 25, 2015Assignee: LSIS Co., Ltd.Inventors: Jung Sik An, Hyun Woo Joo
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Publication number: 20150235705Abstract: An apparatus comprising a memory and a controller. The memory is configured to process a plurality of read/write operations. The memory comprises a plurality of memory modules. Each memory module has a size less than a total size of the memory. The controller is configured to write user data using a plurality of threshold voltages. The data considered hot-read data is written using a first voltage threshold. The data not considered hot-read data is written using a second voltage threshold. The first voltage threshold reduces an impact on endurance of the memory.Type: ApplicationFiled: February 26, 2014Publication date: August 20, 2015Applicant: LSI CorporationInventors: Yu Cai, Yunxiang Wu, Erich F. Haratsch
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Publication number: 20150236875Abstract: A multi-stage system and method for correcting intersymbol interference is disclosed. The system includes a first estimation module configured to sample an input signal to produce a first set of estimated data bits. The system also includes a second estimation module configured to sample the input signal phase shifted by a predetermined phase shift unit to produce a second set of estimated data bits, wherein the second set of estimated data bits are produced at least partially based on the first set of estimated data bits and at least one pre-cursor coefficient.Type: ApplicationFiled: March 21, 2014Publication date: August 20, 2015Applicant: LSI CorporationInventors: Chaitanya Palusa, Adam B. Healey, Hiep T. Pham, Volodymyr Shvydun
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Patent number: D737203Type: GrantFiled: December 3, 2013Date of Patent: August 25, 2015Assignee: LSIS Co., Ltd.Inventor: Young Sung Shin