Patents by Inventor Frank T. Riherd

Frank T. Riherd 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).

  • Methods of operating cell libraries and of realizing large scale integrated circuits using a programmed compiler including a cell library
    Patent number: 5406497
    Abstract: A method of operating a programmed synthesizer which provides from a specification of function defining a data processor a netlist constituting a technology mapping of the processor in terms of a selected technical realization includes storing in a data storage device a library comprising a multiplicity of sets of data each set of which defines a basic cell and operational parameters thereof, the method further comprising scaling said parameters and performing the realization of the processor employing the scaled parameters of selected cells. A suite of scaling factors is defined for the parameters of the cells in the library; and the selected processor is realized employing the selected cells parameters scaled according to said suite of scaling factors. The invention is useful when the operating conditions intended for the processor are different from those for which the parameters are specified.
    Type: Grant
    Filed: September 5, 1990
    Date of Patent: April 11, 1995
    Assignee: VLSI Technology, Inc.
    Inventors: Michel Altheimer, Valery F. Gravoulet, Paul M. Holt, Frank T. Riherd