Patents by Inventor Abraham Mathews

Abraham Mathews 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: 9053770
    Abstract: A method of operation of a high-voltage word-line driver circuit for a memory device prevents any single transistor of the driver from having the full power supply voltage from which the word-line output signal is generated, from being applied across any single transistor of the word-line driver circuit. A pair of cascode devices are connected in series with the pull-down device of the input stage and a pull-up device of the input stage, and biased using reference voltages to control the maximum voltage drop across the pull-down device when the pull-down device is off and the pull-up device is active, and to control the maximum voltage drop across the pull-up device when the pull-down device is active. The output stage also includes cascode devices that protect the output pull-down and pull-up devices, and the reference voltages that bias the input and output cascode pairs may be the same reference voltages.
    Type: Grant
    Filed: June 10, 2014
    Date of Patent: June 9, 2015
    Assignee: INTERNATIONAL BUSINESS MACHINES CORPORATION
    Inventors: Gregory J. Fredeman, Abraham Mathews, Donald W. Plass, Kenneth J. Reyer
  • Patent number: 9047930
    Abstract: A single-ended low-swing power-savings mechanism is provided. The mechanism comprises a precharge device that turns off in an evaluation phase and a first biasing device is always on. Within the mechanism, a strength of a keeper device is changed to a first level in response to an input of the second biasing device being at a first voltage level. Within the mechanism the strength of the keeper device is changed to a second level in response to the input of the second biasing device being at a second voltage level. Responsive to receiving a (precharged voltage level read data line signal, a precharged voltage level of the first node falls faster when the keeper device is weakened to a first level. The keeper device turns on in response to receiving a LOW signal and pulls up the voltage at the first node so that a HIGH signal is output.
    Type: Grant
    Filed: July 26, 2013
    Date of Patent: June 2, 2015
    Assignee: International Business Machines Corporation
    Inventors: Gregory J. Fredeman, Abraham Mathews, Donald W. Plass, Vinod Ramadurai
  • Patent number: 9025403
    Abstract: A high-voltage word-line driver circuit for a memory device uses cascode devices to prevent any single transistor of the driver circuit from having the full power supply voltage from which the word-line output signal is generated, from being applied across any single transistor of the word-line driver circuit. A pair of cascode devices are connected in series with the pull-down device of the input stage and a pull-up device of the input stage, and biased using reference voltages to control the maximum voltage drop across the pull-down device when the pull-down device is off and the pull-up device is active, and to control the maximum voltage drop across the pull-up device when the pull-down device is active. The output stage also includes cascode devices that protect the output pull-down and pull-up devices, and the reference voltages that bias the input and output cascode pairs may be the same reference voltages.
    Type: Grant
    Filed: December 6, 2013
    Date of Patent: May 5, 2015
    Assignee: International Business Machines Corporation
    Inventors: Gregory J. Fredeman, Abraham Mathews, Donald W. Plass, Kenneth J. Reyer
  • Publication number: 20150117120
    Abstract: A single-ended input sense amplifier uses a pass device to couple the input local bit-line to a global bit-line evaluation node. The sense amplifier also includes a pair of cross-coupled inverters, a first inverter of which has an input that coupled directly to the global bit-line evaluation node. The output of the second inverter is selectively coupled to the global bit-line evaluation node in response to a control signal, so that when the pass device is active, the local bit line charges or discharges the global bit-line evaluation node without being affected substantially by a state of the output of the second inverter. When the control signal is in the other state, the cross-coupled inverter forms a latch. An internal output control circuit of the second inverter interrupts the feedback provided by the second inverter in response to the control signal.
    Type: Application
    Filed: October 31, 2013
    Publication date: April 30, 2015
    Applicant: INTERNATIONAL BUSINESS MACHINES CORPORATION
    Inventors: John E. Barth, JR., Abraham Mathews, Donald W. Plass, Kenneth J. Reyer
  • Publication number: 20150105979
    Abstract: A data-logging truck control system controls magnetorheological fluid dampers to protect a data-logging equipment payload of a data-logging truck from vibration and/or impulse shock forces.
    Type: Application
    Filed: June 25, 2013
    Publication date: April 16, 2015
    Inventors: Stephen F. Hilderband, Jonathan M. Owens, Florin Stefan Barbulescu, Abraham Mathew, Michael Mattson
  • Patent number: 8954488
    Abstract: Extensible architecture and data flow in a web based diagram visualization service is accomplished by enabling a diagram update engine to launch custom data modules. Data modules for data sources that are not inherently supported are created by third parties through a specially defined interface (e.g. .NET® assemblies) and made visible for the web based diagram services and callable from a diagram update engine. Thus, a number of data sources from which diagram data can be retrieved and the way incoming data is manipulated and aggregated is extensible through code.
    Type: Grant
    Filed: January 21, 2009
    Date of Patent: February 10, 2015
    Assignee: Microsoft Corporation
    Inventors: Abraham Mathew, Philippe-Joseph Arida, Emil Cicos, Raveendrnathan Loganathan
  • Publication number: 20150029803
    Abstract: A single-ended low-swing power-savings mechanism is provided. The mechanism comprises a precharge device that turns off in an evaluation phase and a first biasing device is always on. Within the mechanism, a strength of a keeper device is changed to a first level in response to an input of the second biasing device being at a first voltage level. Within the mechanism the strength of the keeper device is changed to a second level in response to the input of the second biasing device being at a second voltage level. Responsive to receiving a (precharged voltage level read data line signal, a precharged voltage level of the first node falls faster when the keeper device is weakened to a first level. The keeper device turns on in response to receiving a LOW signal and pulls up the voltage at the first node so that a HIGH signal is output.
    Type: Application
    Filed: July 26, 2013
    Publication date: January 29, 2015
    Applicant: International Business Machines Corporation
    Inventors: Gregory J. Fredeman, Abraham Mathews, Donald W. Plass, Vinod Ramadurai
  • Publication number: 20140123002
    Abstract: A method for providing linked note-taking includes receiving a notification from an online presentation service presenting a document that a note file relating to the document has been created in a client application, requesting at least a portion of the document and document information from the online presentation service, receiving, from the online presentation service, the at least a portion of the document and document information retrieved from a client application where the document resides, receiving a note within the note file and associating the note with at least a portion of the document and document information without locally opening the document in the client application.
    Type: Application
    Filed: October 30, 2012
    Publication date: May 1, 2014
    Applicant: Microsoft Corporation
    Inventors: Cynthia D. Wessling, Apeksha Godiyal, Mustafa Bilal, Charles Duze, James M. Krantz, Abraham Mathew, Thomas C. Underhill, Cassandra Lewis, Chad Nedzlek
  • Patent number: 8591526
    Abstract: A suturing device includes an elongated sheath and a suturing assembly. The elongated sheath has a working end for insertion through a working channel in an endoscope and has an inner passage. The suturing assembly includes an elongated flexible base member, a first suturing arm and a second suturing arm. The suturing arms each have a proximal end interconnected with the elongated base member and an opposite distal end. A needle receiver is disposed at the distal end of each suturing arm. The suturing arms are movable between an open position wherein the distal ends are spaced apart by a first distance and a closed position wherein the distal ends are spaced apart by a second distance less than the first distance.
    Type: Grant
    Filed: November 2, 2007
    Date of Patent: November 26, 2013
    Assignee: The Penn State Research Foundation
    Inventors: James Cronin, Mary Frecker, Abraham Mathew
  • Patent number: 8530039
    Abstract: A polycrystalline mesoscale component, formed through a process including filing a mold cavity formed in a photoresist with a mold fill, is provided with an overall length L divided into multiple segments with a second segment extending from a first segment at a nonlinear angle. The first segment has a first segment height H1 and a first segment thickness T1, while the second segment has a second segment height H2 and a second segment thickness T2, with the lesser of H1 and H2 defining a minimum segment height Hmin and the lesser of T1 and T2 defining a minimum segment thickness Tmin. The resultant component has a ratio of L:Hmin:Tmin of 20-80:1:0.5-10 where Hmin is between 5 and 500 microns. In specific instances, the nonlinear angle is acute, the multiple segments are rectilinear in cross section, and a segment thickness has an edge resolution of between 0.1 and 2 microns.
    Type: Grant
    Filed: August 3, 2009
    Date of Patent: September 10, 2013
    Assignee: The Penn State Research Foundation
    Inventors: James H. Adair, Mary Frecker, Christopher Muhlstein, Eric Mockensturm, Harriet Black Nembhard, Randy S. Haluck, Abraham Mathew, Nicholas Antolino, Gregory R Hayes, Milton Aguirre, Rebecca Kirkpatrick, Chumpol Yuangyai
  • Patent number: 8513347
    Abstract: This invention relates a composition comprising: (i) at least one low molecular weight polyolefin; (ii) a block copolymer obtainable by selectively hydrogenating a block copolymer having terminal polymeric blocks of a vinyl aromatic monomer and a mid-block prepared originally with an olefin and subsequently hydrogenated; and (iii) polypropylene; (iv) with the proviso that when (i) is a PAO having a molecular weight of between about 400 and 1000 g/mole, either: (a) (iii) is a homopolymer characterized by an MFR greater than 2 g/10 min, (b) (iii) is a copolymer; or (c) (iii) is a polymer or copolymer made by a metallocene catalyst; or (d) the composition does not contain calcium carbonate.
    Type: Grant
    Filed: July 7, 2006
    Date of Patent: August 20, 2013
    Assignee: ExxonMobil Chemical Patents Inc.
    Inventors: Mun Fu Tse, Thottinal Abraham Mathew, Feng Li
  • Publication number: 20130110937
    Abstract: A generic means for synchronizing information about a user's view of a document or other content within an application across native client and web applications is provided. Attendees of an online broadcast are enabled to see what the presenter is seeing within their own application. In addition, meeting-specific information such as the meeting time and notes may be synchronized enabling nearly real time synchronization. Moreover, by enabling attendees to view the presented document within their own applications, the attendees are afforded the capabilities provided by that application, such as navigating through the document manually.
    Type: Application
    Filed: November 1, 2011
    Publication date: May 2, 2013
    Applicant: Microsoft Corporation
    Inventors: Charles Burns, Jade Bissat, Apeksha Godiyal, Subalakshmi Venugopal, Abraham Mathew, Hani Saliba
  • Patent number: 8389615
    Abstract: A composition comprising: (i) at least one low molecular weight polyolefin; (ii) at least one block copolymer obtainable by selectively hydrogenating a block copolymer having terminal polymeric blocks of a vinyl aromatic monomer and a mid-block prepared originally with an olefin and subsequently hydrogenated; (iii) at least one polypropylene; and (iv) at least one plastomer, wherein the plastomer is an ethylene based polymer having a density of 0.86 g/cc to about 0.910 g/cc or a propylene based polymer having a heat of fusion (Hf) of 70 J/g or less.
    Type: Grant
    Filed: July 7, 2006
    Date of Patent: March 5, 2013
    Assignee: ExxonMobil Chemical Patents Inc.
    Inventors: Mun Fu Tse, Thottinal Abraham Mathew, Feng Li
  • Patent number: 8382791
    Abstract: Recent advances in minimally invasive surgical procedures have created a demand for smaller scale tools with improved performance characteristics. Attempts to scale down modern tools to the meso level (1-5 mm) have caused severe performance losses. Surgical tools of the present invention provide significant improvements in operable range and force application for both grasping and spreading when compared to currently used endoscopic forceps. This is achieved by using two actuators that separately control the spreading and grasping functions of the surgical tool.
    Type: Grant
    Filed: August 30, 2010
    Date of Patent: February 26, 2013
    Assignee: The Penn State Research Foundation
    Inventors: Mary Frecker, Abraham Mathew, Eric Pauli, Andrew Rau, Jeffrey Kingston, Greg Hayes, Andrew Baranak
  • Patent number: 8230319
    Abstract: Technologies are described herein for refreshing data-linked diagrams on a server computer and viewing and consuming the refreshed diagrams via a Web browser. A drawing program allows equations within a diagram definition to define how external data is utilized to modify the attributes of a diagram element. When the diagram is published to a server computer, the definition is converted to server-legible definition. A published diagram is generated that includes a diagram representation defined by the server-legible definition. Upon a request for the published diagram, the external data is refreshed and the diagram definition is updated. The equations are recalculated to generate new element attributes. The diagram representation is then updated with the new attributes and returned for display by a client Web browser. An interface provides exploration tools and a client API exposes methods for surfacing external data and annotating the diagram.
    Type: Grant
    Filed: January 31, 2008
    Date of Patent: July 24, 2012
    Assignee: Microsoft Corporation
    Inventors: Phillippe-Joseph Arida, Po-Yan Tsang, William G Morein, Abraham Mathew, Loic Henry-Greard, Raveendrnathan Loganathan, Sung Won Shin, Heidi McAllister, John Wang, Emil Cicos, Mairead Therese Droney
  • Patent number: 8138820
    Abstract: A distributed charge pump system uses a delay element and frequency dividers to generate out of phase pump clock signals that drive different charge pumps, to offset peak current clock edges for each charge pump and thereby reduce overall peak power. Clock signal division and phase offset may be extended to multiple levels for further smoothing of the pump clock signal transitions. A dual frequency divider may be used which receives the clock signal and its complement, and generates two divided signals that are 90° out of phase. In an illustrative embodiment the clock generator comprises a variable-frequency clock source, and a voltage regulator senses an output voltage of the charge pumps, generates a reference voltage based on a currently selected frequency of the variable-frequency clock source, and temporarily disables the charge pumps (by turning off local pump clocks) when the output voltage is greater than the reference voltage.
    Type: Grant
    Filed: May 5, 2011
    Date of Patent: March 20, 2012
    Assignee: International Business Machines Corporation
    Inventors: Fadi H. Gebara, Jente B. Kuang, Abraham Mathews
  • Patent number: 8102194
    Abstract: A distributed charge pump system uses a delay element and frequency dividers to generate out of phase pump clock signals that drive different charge pumps, to offset peak current clock edges for each charge pump and thereby reduce overall peak power. Clock signal division and phase offset may be extended to multiple levels for further smoothing of the pump clock signal transitions. A dual frequency divider may be used which receives the clock signal and its complement, and generates two divided signals that are 90° out of phase. In an illustrative embodiment the clock generator comprises a variable-frequency clock source, and a voltage regulator senses an output voltage of the charge pumps, generates a reference voltage based on a currently selected frequency of the variable-frequency clock source, and temporarily disables the charge pumps (by turning off local pump clocks) when the output voltage is greater than the reference voltage.
    Type: Grant
    Filed: August 20, 2010
    Date of Patent: January 24, 2012
    Assignee: International Business Machines Corporation
    Inventors: Fadi H. Gebara, Jente B. Kuang, Abraham Mathews
  • Publication number: 20110204931
    Abstract: A distributed charge pump system uses a delay element and frequency dividers to generate out of phase pump clock signals that drive different charge pumps, to offset peak current clock edges for each charge pump and thereby reduce overall peak power. Clock signal division and phase offset may be extended to multiple levels for further smoothing of the pump clock signal transitions. A dual frequency divider may be used which receives the clock signal and its complement, and generates two divided signals that are 90° out of phase. In an illustrative embodiment the clock generator comprises a variable-frequency clock source, and a voltage regulator senses an output voltage of the charge pumps, generates a reference voltage based on a currently selected frequency of the variable-frequency clock source, and temporarily disables the charge pumps (by turning off local pump clocks) when the output voltage is greater than the reference voltage.
    Type: Application
    Filed: May 5, 2011
    Publication date: August 25, 2011
    Applicant: INTERNATIONAL BUSINESS MACHINES CORPORATION
    Inventors: Fadi H. Gebara, Jente B. Kuang, Abraham Mathews
  • Patent number: 7994845
    Abstract: A switched-capacitor charge pump comprises a two-phase charging circuit, cross-coupled transistors connected to output nodes of the switched capacitors, and a pump output connected to source terminals of the cross-coupled transistors. The charge pump has side transistors for boosting charge transfer, and gating logic of the side transistors includes level shifters which control connections to the pump output or a reference voltage. Negative and positive charge pump embodiments are provided. The charging circuit utilizes non-overlapping wide and narrow clock signals to generate multiple gating signals. The pump clock circuit preferably provides independent, programmable adjustment of the widths of the wide and narrow clock signals. An override mode can be provided using clamping circuits which shunt the pump output to the second nodes of the switched capacitors.
    Type: Grant
    Filed: May 12, 2010
    Date of Patent: August 9, 2011
    Assignee: International Business Machines Corporation
    Inventors: Fadi H. Gebara, Jente B. Kuang, Abraham Mathews
  • Patent number: 7982749
    Abstract: Technologies are described herein for high-performance rasterization of a vector graphic on a server computer. A vector graphic loader receives the vector graphic and generates an intermediate data structure from the vector graphic. A vector graphic renderer receives the intermediate data structure and renders the intermediate data structure to a render surface. An imaging component encodes the contents of the render surface to a raster image in a standard image format. The vector graphic loader and the vector graphic renderer are configured for multi-threaded and multi-processor execution on a server computer, which provides high performance.
    Type: Grant
    Filed: January 31, 2008
    Date of Patent: July 19, 2011
    Assignee: Microsoft Corporation
    Inventors: Abraham Mathew, William Guthrie Morein, Sung Won Shin