Patents by Inventor Igor Arsovski

Igor Arsovski has filed for patents to protect the following inventions. This listing includes patent applications that are pending as well as patents that have already been granted by the United States Patent and Trademark Office (USPTO).

  • Patent number: 7986571
    Abstract: An apparatus and method for low power, single-ended sensing in a multi-port static random access memory (SRAM) using pre-discharged bit lines includes holding a bit line associated with the memory cell at a zero voltage potential when the memory cell is not being accessed; releasing the bit line from being held at a zero voltage potential when the memory cell is being accessed; charging the bit line to a first voltage potential greater in value than the zero voltage potential during an access of the memory cell, wherein charging the bit line to a first voltage potential occurs for a first predetermined period of time after access to the memory cell has begun; and sensing the memory cell contents during an access of the memory cell, wherein sensing of the memory cell contents occurs for a second predetermined period of time after access to the memory cell has begun.
    Type: Grant
    Filed: August 18, 2010
    Date of Patent: July 26, 2011
    Assignee: International Business Machines Corporation
    Inventors: Igor Arsovski, Michael T. Fragano, Robert M. Houle
  • Patent number: 7940581
    Abstract: A method for sensing the contents of a memory cell within a static random access memory (SRAM) includes holding a bit line associated with the memory cell at a zero voltage potential when the memory cell is not being accessed; energizing the bit line to a first voltage potential different than the zero voltage potential during an access of the memory cell; and sensing the memory cell contents when the associated bit line has reached the first voltage potential.
    Type: Grant
    Filed: August 23, 2010
    Date of Patent: May 10, 2011
    Assignee: International Business Machines Corporation
    Inventors: Igor Arsovski, Michael T. Fragano, Robert M. Houle
  • Publication number: 20110096582
    Abstract: A content addressable memory (CAM) device includes an array of memory cells arranged in rows and columns; compare circuitry configured to indicate match results of search data presented to each row of the array; and compare circuitry configured to indicate match results of search data presented to each column of the array, thereby resulting in a two-dimensional search capability of the array.
    Type: Application
    Filed: January 4, 2011
    Publication date: April 28, 2011
    Applicant: INTERNATIONAL BUSINESS MACHINES CORPORATION
    Inventors: Igor Arsovski, Michael T. Fragano, Rahul K. Nadkarni, Reid A. Wistort
  • Publication number: 20110090750
    Abstract: An SRAM delay circuit that tracks bitcell characteristics. A circuit is disclosed that includes an input node for receiving an input signal; a reference node for capturing a reference current from a plurality of reference cells; a capacitance network having a discharge that is controlled by the reference current; and an output circuit that outputs the input signal with a delay, wherein the delay is controlled by the discharge of the capacitance network.
    Type: Application
    Filed: October 19, 2009
    Publication date: April 21, 2011
    Applicant: INTERNATIONAL BUSINESS MACHINES CORPORATION
    Inventors: Igor Arsovski, George Maria Braceras, Robert M. Houle, Harold Pilo
  • Publication number: 20110085390
    Abstract: A dual word-line level shifter circuit and associated SRAM. A circuit is disclosed that includes a first transistor gated by a data input at the lower voltage, and a second transistor gated by a restore input at the higher voltage, wherein the first and second transistors are coupled along a series path to a source at the higher voltage; a control node along the series path; an output node coupled to the control node via a first pair of parallel transistors; and a feedback circuit having a second pair of parallel transistors and a feedback transistor, wherein the feedback transistor couples the second pair of parallel transistors to the control node and is gated by the output node.
    Type: Application
    Filed: October 14, 2009
    Publication date: April 14, 2011
    Applicant: INTERNATIONAL BUSINESS MACHINES CORPORATION
    Inventors: Igor Arsovski, Matthew W. Deming, Darryl R. Hill, Harold Pilo, Reid A. Wistort
  • Publication number: 20110088005
    Abstract: A method for producing a configurable content-addressable memory (CAM) cell design, in which the method includes: inputting the configurable CAM cell design to a computer, the configurable CAM cell design capable of being configured as one of a binary CAM design and a ternary CAM design, depending on connections of a metal overlay; selecting one of a first metal overlay design for the binary CAM design and a second metal overlay design for a ternary CAM design; if the first metal overlay design is selected, then combining the first metal overlay design with the configurable CAM cell design to produce a binary CAM design including two binary CAM cells with a single search port, and outputting the binary CAM design; and if the second metal overlay design is selected, then combining the second metal overly design with the configurable CAM cell design to produce a ternary CAM design including a single ternary CAM cell with two search ports, and outputting the ternary CAM design by the computer.
    Type: Application
    Filed: October 9, 2009
    Publication date: April 14, 2011
    Applicant: International Business Machines Corporation
    Inventor: Igor Arsovski
  • Patent number: 7924588
    Abstract: A content addressable memory (CAM) device includes an array of memory cells arranged in rows and columns; compare circuitry configured to indicate match results of search data presented to each row of the array; and compare circuitry configured to indicate match results of search data presented to each column of the array, thereby resulting in a two-dimensional search capability of the array.
    Type: Grant
    Filed: December 3, 2007
    Date of Patent: April 12, 2011
    Assignee: International Business Machines Corporation
    Inventors: Igor Arsovski, Michael T. Fragano, Rahul K. Nadkarni, Reid A. Wistort
  • Patent number: 7898286
    Abstract: Cross-die connection structure and method for a die or chip includes buffer elements having a buffer driver and bypass, and control lines coupled to the buffer elements in order to select one of the buffer driver and bypass for each respective buffer element. A logic network is arranged with the buffer elements to form functional paths, a test unit is structured and arranged to test the functional paths and to be coupled to the control lines, and a configuration storage register to set the selected one of the buffer driver and bypass for each passing functional path.
    Type: Grant
    Filed: February 11, 2009
    Date of Patent: March 1, 2011
    Assignee: International Business Machines Corporation
    Inventors: Igor Arsovski, Hayden C. Cranford, Jr., Joseph A. Iadanza, Todd E. Leonard, Jason M. Norman, Hemen R. Shah, Sebastian T. Ventrone
  • Patent number: 7859921
    Abstract: A method for sensing the contents of a memory cell within a static random access memory (SRAM) includes holding a bit line associated with the memory cell at a zero voltage potential when the memory cell is not being accessed; energizing the bit line to a first voltage potential different than the zero voltage potential during an access of the memory cell; and sensing the memory cell contents when the associated bit line has reached the first voltage potential.
    Type: Grant
    Filed: June 9, 2008
    Date of Patent: December 28, 2010
    Assignee: International Business Machines Corporation
    Inventors: Igor Arsovski, Michael Thomas Fragano, Robert Maurice Houle
  • Patent number: 7859878
    Abstract: A design structure embodied in a machine readable medium used in a design process includes a content addressable memory (CAM) device having an array of memory cells arranged in rows in a word line direction and columns arranged in a bit line direction, and compare circuitry configured to compare data presented to the array with data stored in each row and column of the array, and simultaneously indicate match results on each row and column of the array, thereby resulting in a two-dimensional, matrix-based data comparison operation.
    Type: Grant
    Filed: April 28, 2008
    Date of Patent: December 28, 2010
    Assignee: International Business Machines Corporation
    Inventors: Igor Arsovski, Kerry Bernstein
  • Publication number: 20100315894
    Abstract: A method for sensing the contents of a memory cell within a static random access memory (SRAM) includes holding a bit line associated with the memory cell at a zero voltage potential when the memory cell is not being accessed; energizing the bit line to a first voltage potential different than the zero voltage potential during an access of the memory cell; and sensing the memory cell contents when the associated bit line has reached the first voltage potential.
    Type: Application
    Filed: August 23, 2010
    Publication date: December 16, 2010
    Applicant: INTERNATIONAL BUSINESS MACHINES CORPORATION
    Inventors: Igor Arsovski, Michael Thomas Fragano, Robert Maurice Houle
  • Publication number: 20100309740
    Abstract: An apparatus and method for low power, single-ended sensing in a multi-port static random access memory (SRAM) using pre-discharged bit lines includes holding a bit line associated with the memory cell at a zero voltage potential when the memory cell is not being accessed; releasing the bit line from being held at a zero voltage potential when the memory cell is being accessed; charging the bit line to a first voltage potential greater in value than the zero voltage potential during an access of the memory cell, wherein charging the bit line to a first voltage potential occurs for a first predetermined period of time after access to the memory cell has begun; and sensing the memory cell contents during an access of the memory cell, wherein sensing of the memory cell contents occurs for a second predetermined period of time after access to the memory cell has begun.
    Type: Application
    Filed: August 18, 2010
    Publication date: December 9, 2010
    Applicant: INTERNATIONAL BUSINESS MACHINES CORPORATION
    Inventors: Igor Arsovski, Michael Thomas Fragano, Robert Maurice Houle
  • Patent number: 7848128
    Abstract: A content addressable memory (CAM) device includes an array of memory cells arranged in rows in a word line direction and columns arranged in a bit line direction, and compare circuitry configured to compare data presented to the array with data stored in each row and column of the array, and simultaneously indicate match results on each row and column of the array, thereby resulting in a two-dimensional, matrix-based data comparison operation.
    Type: Grant
    Filed: December 3, 2007
    Date of Patent: December 7, 2010
    Assignee: International Business Machines Corporation
    Inventors: Igor Arsovski, Kerry Bernstein
  • Patent number: 7830727
    Abstract: An apparatus and method for low power, single-ended sensing in a multi-port static random access memory (SRAM) using pre-discharged bit lines includes holding a bit line associated with the memory cell at a zero voltage potential when the memory cell is not being accessed; releasing the bit line from being held at a zero voltage potential when the memory cell is being accessed; charging the bit line to a first voltage potential greater in value than the zero voltage potential during an access of the memory cell, wherein charging the bit line to a first voltage potential occurs for a first predetermined period of time after access to the memory cell has begun; and sensing the memory cell contents during an access of the memory cell, wherein sensing of the memory cell contents occurs for a second predetermined period of time after access to the memory cell has begun.
    Type: Grant
    Filed: June 9, 2008
    Date of Patent: November 9, 2010
    Assignee: International Business Machines Corporation
    Inventors: Igor Arsovski, Michael Thomas Fragano, Robert Maurice Houle
  • Patent number: 7826288
    Abstract: In a method for reducing and/or eliminating mismatch in one or more devices that require a balanced state (e.g., in cross-coupled transistors in each memory cell and/or sense amp in a memory array), the bias (i.e., the preferred state) of each of the devices is determined. Then, a burn-in process is initiated, during which an individually selected state is applied to each of the devices. This fatigues the devices away from their preferred states and towards a balanced state. The bias is periodically reassessed during the burn-in process to avoid over-correction. By using this method both memory cell and sense-amplifier mismatch can be reduced in memory arrays, resulting in smaller timing uncertainty and therefore faster memories.
    Type: Grant
    Filed: March 9, 2007
    Date of Patent: November 2, 2010
    Assignee: International Business Machines Corporation
    Inventors: Igor Arsovski, Harold Pilo, Michael A. Ziegerhofer
  • Patent number: 7823107
    Abstract: An embodiment of a design structure is shown for noise reduction comprising synthesizing blocks of sequential latches, e.g., a pipeline circuit architecture or clocking domain, which comprises combinational logic, synthesizing a root or a master clock and at least one phase-shifted sub-domain clock for each block, assigning primary inputs and primary outputs of the block to the root clock, assigning non-primary inputs and non-primary outputs of the block to the sub-domain clock, splitting root clock inputs into root clock inputs and phase-shifted sub-domain clock inputs, assigning each of the blocks a different phase-shifted sub-domain clock phase offset, creating a clock generation circuitry for the root clocks and the phase-shifted sub-domain clocks.
    Type: Grant
    Filed: October 19, 2007
    Date of Patent: October 26, 2010
    Assignee: International Business Machines Corporation
    Inventors: Igor Arsovski, Serafino Bueti, Joseph A. Iadanza, Jason M. Norman, Hemen R. Shah, Sebastian T. Ventrone
  • Publication number: 20100228861
    Abstract: A system and method of allocating a job submission for a computational task to a set of distributed server farms each having at least one processing entity comprising; receiving a workload request from at least one processing entity for submission to at least one of the set of distributed server farms; using at least one or more conditions associated with the computational task for accepting or rejecting at least one of the server farms to which the job submission is to be allocated; determining a server farm that can optimize the one or more conditions; and dispatching the job submission to the server farm which optimizes the at least one of the one or more conditions associated with the computational task and used for selecting the at least one of the server farms.
    Type: Application
    Filed: March 4, 2009
    Publication date: September 9, 2010
    Applicant: International Business Machines Corporation
    Inventors: Igor Arsovski, Anthony Richard Bonaccio, Hayden C. Cranford, JR., Alfred Degbotse, Joseph Andrew Iadanza, Todd Edwin Leonard, Pradeep Thiagarajan, Sebastian Theodore Ventrone
  • Publication number: 20100201377
    Abstract: Cross-die connection structure and method for a die or chip includes buffer elements having a buffer driver and bypass, and control lines coupled to the buffer elements in order to select one of the buffer driver and bypass for each respective buffer element. A logic network is arranged with the buffer elements to form functional paths, a test unit is structured and arranged to test the functional paths and to be coupled to the control lines, and a configuration storage register to set the selected one of the buffer driver and bypass for each passing functional path.
    Type: Application
    Filed: February 11, 2009
    Publication date: August 12, 2010
    Applicant: INTERNATIONAL BUSINESS MACHINES CORPORATION
    Inventors: Igor ARSOVSKI, Hayden C. CRANFORD, JR., Joseph A. IADANZA, Todd E. LEONARD, Jason M. NORMAN, Hemen R. SHAH, Sebastian T. VENTRONE
  • Patent number: 7770139
    Abstract: A design structure for a multimode circuit that is configured to operate in one of multiple operating modes is disclosed. In particular, an exemplary multimode circuit may be configured to operating in one of a full-swing mode, a limited-swing mode, a full-swing to limited-swing converter mode, and a limited-swing to full-swing converter mode. The operating modes of the multimode circuit may be dynamically selectable. One or more multimode circuits may be part of a configurable distribution path for controlling the performance of a signal distribution path or tree of an integrated circuit.
    Type: Grant
    Filed: October 31, 2007
    Date of Patent: August 3, 2010
    Assignee: International Business Machines Corporation
    Inventors: Igor Arsovski, Anthony R. Bonaccio, Hayden C. Cranford, Jr., Joseph A. Iadanza, Pradeep Thiagarajan, Sebastian T. Ventrone
  • Patent number: 7751218
    Abstract: A design structure for designing, manufacturing, or testing a content addressable memory (CAM) device. The CAM device includes a plurality of CAM cells, match-lines (MLs), search lines, and ML sense amplifiers. The ML sense amplifiers are capable of self-calibration to their respective thresholds to reduce effects of random device variation between adjacent sense amplifiers.
    Type: Grant
    Filed: June 15, 2007
    Date of Patent: July 6, 2010
    Assignee: International Business Machines Corporation
    Inventor: Igor Arsovski