Patents Assigned to Athena Design Systems, Inc.
  • Publication number: 20080134122
    Abstract: Methods for routing in the design of integrated circuits (ICs) to simplify the routing task. The method includes dividing a given IC design into a limited number of non-overlapping tiles, and then routing all tiles in parallel, each tile being independently routed by a standard router. Thereafter, routed tiles are assembled to form a routing solution for the entire IC. Details of exemplary methods are disclosed.
    Type: Application
    Filed: February 6, 2008
    Publication date: June 5, 2008
    Applicant: ATHENA DESIGN SYSTEMS, INC.
    Inventors: Dimitris K. Fotakis, Milan F. Jukl
  • Patent number: 7376921
    Abstract: Methods for routing in the design of integrated circuits (ICs) to simplify the routing task. The method includes dividing a given IC design into a limited number of non-overlapping tiles, and then routing all tiles in parallel, each tile being independently routed by a standard router. Thereafter, routed tiles are assembled to form a routing solution for the entire IC. Details of exemplary methods are disclosed.
    Type: Grant
    Filed: February 17, 2006
    Date of Patent: May 20, 2008
    Assignee: Athena Design Systems, Inc.
    Inventors: Dimitris K. Fotakis, Milan F. Jukl
  • Patent number: 6147688
    Abstract: A method and system for generating designs by repetition of a user-defined image component which is arranged throughout an image pixelmap according to any desired pattern. Vector descriptions are used to specify pixelmap locations where the unit cell is to be copied. A user can define placement vectors that copy the unit cells apart from one another, adjacent one another or in an overlapping pattern. In the latter case, a formalism is provided for "masking out" a portion of the unit cell to avoid deletion of desired image information.
    Type: Grant
    Filed: June 28, 1993
    Date of Patent: November 14, 2000
    Assignee: Athena Design Systems, Inc.
    Inventor: Robert Clair
  • Patent number: 5440652
    Abstract: A method and system for creating color separations comprising discrete computational objects whose edge contours are mutually compatible, such contours being defined based on user-selected n-way color relationships. The objects may be moved, copied, scaled, re-oriented, altered in appearance or resolution, or otherwise manipulated by a user as units. In operation, the invention analyzes a multicolored pixelmap to identify edges associated with regions of a particular color. As it traces an edge the invention generates a secondary edge whose distance from the original edge is determined by the pairwise relationship between the adjacent colors; that distance may vary as the color abutting the edge changes. The pixels along the secondary edge are stored as an order list of pixels that defines the object thus traced.
    Type: Grant
    Filed: September 10, 1993
    Date of Patent: August 8, 1995
    Assignee: Athena Design Systems, Inc.
    Inventor: David M. T. Ting