Patents by Inventor Ilya V. Lyalin

Ilya V. Lyalin 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).

  • Ramptime propagation on designs with cycles
    Patent number: 7568175
    Abstract: A method and apparatus for calculating ramptime propagation for integrated circuit layout patterns having pins interconnected in an oriented graph in one or more closed loops is described. Ramptime values are calculated for a first set of the pins, which are not connected to a closed loop while leaving a second set of the pins with unknown ramptime values. One or more closed loops are identified by backtracking from the pins in the second set with unknown ramptime values. A ramptime value for each pin in the one or more closed loops is calculated iteratively.
    Type: Grant
    Filed: June 1, 2007
    Date of Patent: July 28, 2009
    Assignee: LSI Corporation
    Inventors: Andrej A. Zolotykh, Elyar E. Gasanov, Alexei V. Galatenko, Ilya V. Lyalin
  • Ramptime propagation on designs with cycles
    Patent number: 7246336
    Abstract: A method for calculating ramptime propagation for integrated circuit layout patterns having pins interconnected in an oriented graph in one or more closed loops is described. Ramptime values are calculated for a first set of the pins, which are not connected to a closed loop while leaving a second set of the pins with unknown ramptime values. One or more closed loops are identified by backtracking from the pins in the second set with unknown ramptime values. A ramptime value for each pin in the one or more closed loops is calculated iteratively.
    Type: Grant
    Filed: December 3, 2004
    Date of Patent: July 17, 2007
    Assignee: LSI Corporation
    Inventors: Andrej A. Zolotykh, Elyar E. Gasanov, Alexei V. Galatenko, Ilya V. Lyalin