Patents Assigned to LSI
  • Publication number: 20130043602
    Abstract: A method and/or an apparatus of core timing prediction is disclosed. In one embodiment, a method may include generating a core timing model of a core logic that is accurately transferable to any chip-level integration process. The method may reduce performance degradation and/or performance variation of the core logic caused by a number of interactions between core logic components and chip-level components in the chip-level integration process. In addition, the core timing model of the core logic may be generated by filling un-wired tracks with metal in any of an outermost layer of the core logic after a core logic routing and constructing a layer at least an area of and adjacent to any of the outermost layer of the core logic with grounded metal that is orthogonal to those of the metal used in the outermost layer of the core logic.
    Type: Application
    Filed: October 22, 2012
    Publication date: February 21, 2013
    Applicant: LSI Corporation
    Inventor: LSI Corporation
  • Patent number: 8381074
    Abstract: Various embodiments of the present invention provide systems and methods for data processing. For example, a method for data processing is disclosed that includes: providing a data detection circuit including a first detection processing circuit, a second detection processing circuit, a decoder processing circuit, and a memory circuit; performing a data detection algorithm on an input data set by the first detection processing circuit to yield a first detected output; writing a derivative of the first detected output to the memory circuit; accessing the derivative of the first detected output from the memory circuit; performing a decoder algorithm on the derivative of the first detected output using the decoder processing circuit to yield a decoded output; writing the decoded output to the memory circuit; accessing the decoded output from the memory circuit; and performing the data detection algorithm on a combination of the input data set and the decoded output to yield a second detected output.
    Type: Grant
    Filed: May 21, 2010
    Date of Patent: February 19, 2013
    Assignee: LSI Corporation
    Inventors: Kiran Gunnam, Shaohua Yang
  • Patent number: 8380668
    Abstract: Partner mirroring is provided with tray loss protection in an N node storage cluster architecture. A master proxy receives and records broadcasts of nodes in a cluster and selects mirror partners in a round robin fashion, so that even numbered nodes are mirrored with other even numbered nodes and odd numbered nodes are mirrored with other odd numbered nodes. In an N node storage cluster architecture which includes a cluster of dual controllers, tray loss protection is provided using such an odd numbered and even numbered mirror pairing process.
    Type: Grant
    Filed: June 22, 2011
    Date of Patent: February 19, 2013
    Assignee: LSI Corporation
    Inventors: Girish Kumar Bk, Arindam Banerjee
  • Patent number: 8381080
    Abstract: An apparatus generally having a lookup table and a circuit is disclosed. The lookup table may be configured to store a plurality of results including remainders of divisions by a particular polynomial. The circuit may be configured to (i) parse a first polynomial into a plurality of data blocks and an end block, (ii) fetch a plurality of results from the lookup table by indexing the lookup table with each of the data blocks and (iii) generate a second polynomial by adding the results fetched from the lookup table to the end block. The second polynomial generally has a second degree that is lower that a first degree of the first polynomial.
    Type: Grant
    Filed: June 15, 2010
    Date of Patent: February 19, 2013
    Assignee: LSI Corporation
    Inventors: Alexander Rabinovitch, Shai Kalfon
  • Patent number: 8377633
    Abstract: The present invention provides methods and apparatus for accomplishing optical direct write phase shift lithography. A lithography system and method are provided wherein a mirror array is configured to generate vortex phase shift optical patterns that are directed onto a photosensitive layer of a substrate. The lithography methods and systems facilitate pattern transfer using such vortex phase shift exposure patterns.
    Type: Grant
    Filed: October 5, 2011
    Date of Patent: February 19, 2013
    Assignee: LSI Corporation
    Inventors: Nicholas K. Eib, Ebo H. Croffie, Neal P. Callan
  • Patent number: 8378485
    Abstract: A method of forming an electronic device provides an electronic device substrate having a solder bump pad located thereover. A nickel-containing layer is located over the solder bump pad. A copper-containing layer is formed on the nickel-containing layer prior to subjecting the electronic device to a reflow process.
    Type: Grant
    Filed: July 13, 2009
    Date of Patent: February 19, 2013
    Assignee: LSI Corporation
    Inventors: Mark A. Bachman, John W. Osenbach, Kishor V. Desai
  • Patent number: 8381077
    Abstract: Various embodiments of the present invention provide systems, methods and circuits for memories and utilization thereof. As one example, a memory system is disclosed that includes a flash memory device and a flash access circuit. The flash access circuit is operable to perform an error code encoding algorithm on a data set to yield an error code, to write the data set to the flash memory device at a first location, and to write the error code to the flash memory device at a second location.
    Type: Grant
    Filed: May 5, 2010
    Date of Patent: February 19, 2013
    Assignee: LSI Corporation
    Inventor: Robert W. Warren
  • Patent number: 8379665
    Abstract: Apparatus and methods improved fair access to a Fiber Channel Arbitrated Loop (FC-AL) communication medium through a bridge device. The enhanced bridge device provides for a fair access in a currently open access window for all presently requesting devices coupled through the bridge device to the FC-AL communication medium. Thus all devices on the loop whether coupled directly or through a bridge device can be assured fair access to the loop when there are simultaneous requests during an open access window.
    Type: Grant
    Filed: June 1, 2009
    Date of Patent: February 19, 2013
    Assignee: LSI Corporation
    Inventors: James W. Keeley, Douglas E. Sanders, Daniel W. Meyer, Andrew Hyonil Chong, Ju-Ching Tang
  • Patent number: 8381071
    Abstract: Various embodiments of the present invention provide systems and methods for data processing. For example, a method for data processing is disclosed that includes providing a decoder processing circuit having a first memory, a second memory, and a decoder circuit; and providing a centralized queue communicably coupled to the decoder processing circuit. A first data set is loaded from the centralized queue to the first memory, and concurrent with the loading the first data set, a data decoding algorithm is applied to a second data set by the decoder circuit.
    Type: Grant
    Filed: May 21, 2010
    Date of Patent: February 19, 2013
    Assignee: LSI Corporation
    Inventor: Kiran Gunnam
  • Patent number: 8380911
    Abstract: A computing system peripheral device compatible with the peripheral component interconnect express (PCI-E) protocol responds to a DL_DOWN command primitive by configuring a general-purpose input/output (GPIO) port into a known state without invoking a GPIO module reset. In addition, select resources are excluded from resources on the peripheral device that are issued a reset command. The select resources can include a GPIO module, a memory element and a PCI-E SERDES module. After the remaining reset resources have completed their individual initialization processes, the central processor core on the peripheral device is reset. The described response to the DL_DOWN command primitive avoids cache data loss, masks signal transitions on I/O ports and timing problems that prevent some peripheral devices from being recognized in a computer's basic input/output system (BIOS).
    Type: Grant
    Filed: September 13, 2010
    Date of Patent: February 19, 2013
    Assignee: LSI Corporation
    Inventor: Jayant Mohan Daftardar
  • Patent number: 8379498
    Abstract: Various embodiments of the present invention provide systems and methods for data processing. As an example, a data processing circuit is discussed that includes: a data buffer, an inter-track interference response circuit, an inter-track interference signal estimator circuit, and a sync mark detector circuit. The data buffer is operable to store a previous track data set that includes a first sync pattern. The inter-track interference response circuit is operable to estimate an inter-track interference response from the previous track data set based at least in part on the previous track data set and a current track data set. The current track data set includes a second sync pattern. The inter-track interference signal estimator circuit is operable to calculate an inter-track interference from the previous track data set based at least in part on the previous track data set and the inter-track interference response from the previous track data set.
    Type: Grant
    Filed: July 19, 2011
    Date of Patent: February 19, 2013
    Assignee: LSI Corporation
    Inventors: George Mathew, Ming Jin, Shaohua Yang, Erich F. Haratsch
  • Patent number: 8379711
    Abstract: Methods and apparatus are provided for decision-feedback equalization with an oversampled phase detector. A method is provided for detecting data in a receiver employing decision-feedback equalization. A received signal is sampled using a data clock and a transition clock to generate a data sample signal and a transition sample signal. A DFE correction is obtained for each of the data sample and transition sample signals to generate DFE detected data and DFE transition data. One or more coefficients used for the DFE correction for the transition sample signals are adapted using the DFE transition data.
    Type: Grant
    Filed: June 30, 2009
    Date of Patent: February 19, 2013
    Assignee: LSI Corporation
    Inventors: Pervez M. Aziz, Adam B. Healey, Amaresh Malipatil, Lizhi Zhong
  • Publication number: 20130039359
    Abstract: In certain embodiments, a slave clock node in a wireless packet network achieves time synchronization with a master clock node by implementing a packet-layer synchronization procedure, such as the IEEE1588 precision timing protocol (PTP), to set the slave's local time based on the master's time. The slave's local time is then maintained by implementing a physical-layer syntonization procedure, such as synchronous Ethernet, without relying on the packet-layer synchronization procedure. The packet-layer synchronization procedure may be selectively employed to adjust the slave's local time (if needed) after significant periods of time (e.g., substantially greater than one second). Both the packet-layer synchronization procedure and the physical-layer syntonization procedure are traceable to a common reference timescale (e.g., UTC). Depending on the implementation, the packet-layer synchronization procedure can be, but does not have to be, terminated when not being employed to adjust the slave's local time.
    Type: Application
    Filed: October 19, 2012
    Publication date: February 14, 2013
    Applicant: LSI CORPORATION
    Inventor: LSI Corporation
  • Publication number: 20130042064
    Abstract: The present disclosure is directed to a system for dynamically adaptive caching. The system includes a storage device having a physical capacity for storing data received from a host. The system may also include a control module for receiving data from the host and compressing the data to a compressed data size. Alternatively, the data may also be compressed by the storage device. The control module may be configured for determining an amount of available space on the storage device and also determining a reclaimed space, the reclaimed space being according to a difference between the size of the data received from the host and the compressed data size. The system may also include an interface module for presenting a logical capacity to the host. The logical capacity has a variable size and may include at least a portion of the reclaimed space.
    Type: Application
    Filed: August 3, 2012
    Publication date: February 14, 2013
    Applicant: LSI Corporation
    Inventors: Horia Simionescu, Mark Ish, Luca Bert, Robert Quinn, Earl T. Cohen, Timothy Canepa
  • Patent number: 8374050
    Abstract: A memory operative to provide multi-port functionality includes multiple single-port memory cells forming a first memory array. The first memory array is organized into multiple memory banks, each of the memory banks comprising a corresponding subset of the single-port memory cells. The memory further includes a second memory array including multiple multi-port memory cells and is operative to track status information of data stored in corresponding locations in the first memory array. At least one cache memory is connected with the first memory array and is operative to store data for resolving concurrent read and write access conflicts in the first memory array.
    Type: Grant
    Filed: June 4, 2011
    Date of Patent: February 12, 2013
    Assignee: LSI Corporation
    Inventors: Ting Zhou, Ephrem Wu, Sheng Liu, Hyuck Jin Kwon
  • Patent number: 8373441
    Abstract: Described embodiments provide for a semiconductor device comprising a core and one or more input/output (I/O) buffers surrounding the core. The I/O buffers are adapted to transfer signals associated with core circuitry of the core. The I/O buffers comprise I/O cells having a first orientation and I/O cells having a second orientation. Each I/O cell has a corresponding translator having low voltage transistors in a corresponding footprint. The low voltage transistors in the first orientation I/O cells have the first orientation, and the low voltage transistors in the second orientation I/O cells have the first orientation. The footprints of the first orientation I/O cells and the second orientation I/O cells are compatible with one another.
    Type: Grant
    Filed: September 20, 2011
    Date of Patent: February 12, 2013
    Assignee: LSI Corporation
    Inventors: John A. Milinichik, Peter J. Nicholas, Carol A. Huber, Antonio M. Marques, Daniel J. Delpero
  • Publication number: 20130036393
    Abstract: A method of designing a model of an integrated circuit block, an electronic design automation tool and a non-transitory computer-readable medium are disclosed herein. In one embodiment, the method includes: (1) generating an input and output timing budget for the block based on design constraints of the block and a netlist of the block, (2) updating the input and output timing budget with clock customization data based on designer knowledge of the integrated circuit and (3) providing the model for the block based on the update of the input and output timing budget, wherein the model represents clock information of the block separately from data path information of the block.
    Type: Application
    Filed: October 11, 2012
    Publication date: February 7, 2013
    Applicant: LSI CORPORATION
    Inventor: LSI CORPORATION
  • Publication number: 20130036265
    Abstract: The present invention is directed to a method for providing storage acceleration in a data storage system. In the data storage system described herein, multiple independent controllers may be utilized, such that a first storage controller may be connected to a first storage tier (ex.—a fast tier) which includes a solid-state drive, while a second storage controller may be connected to a second storage tier (ex.—a slower tier) which includes a hard disk drive. The accelerator functionality may be split between the host of the system and the first storage controller of the system (ex.—some of the accelerator functionality may be offloaded to the first storage controller) for promoting improved storage acceleration performance within the system.
    Type: Application
    Filed: August 3, 2011
    Publication date: February 7, 2013
    Applicant: LSI CORPORATION
    Inventors: Luca Bert, Mark Ish
  • Patent number: D676182
    Type: Grant
    Filed: May 4, 2012
    Date of Patent: February 12, 2013
    Assignee: LSI Industries, Inc.
    Inventors: John D. Boyer, James G. Vanden Eynden, Larry Akers, Vincent Charles Anthony DiCola
  • Patent number: D676596
    Type: Grant
    Filed: May 4, 2012
    Date of Patent: February 19, 2013
    Assignee: LSI Industries, Inc.
    Inventors: John D. Boyer, James G. Vanden Eynden, Larry Akers, Vincent Charles Anthony DiCola