Patents by Inventor Joel Joseph

Joel Joseph 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: 6508284
    Abstract: The loss of tire contact patch area along the tire's inside shoulder, relative to an oval race course, which occurs during chassis roll and lateral deflection, is reduced by providing an asymmetrical molded tire. The tires are defined by an asymmetrical outer tread profile and the tires are mounted on the rear axle of the race vehicle such that the axially outer portion of the asymmetrical tread region of each tire, relative to the race course, has a greater shoulder drop, wherein the shoulder drop is the difference between the maximum radial diameter of the tread measured on the outer tread contour and the diameter of the tread at the tread edge, than the opposing tire shoulder.
    Type: Grant
    Filed: October 27, 2000
    Date of Patent: January 21, 2003
    Assignee: The Goodyear Tire & Rubber Company
    Inventors: Douglas Ashley Swift, John Gregory Stucker, Richard Barkley Campbell, Charles Kenneth Schmalix, Joel Joseph Lazeration
  • Patent number: 6046984
    Abstract: A conservative algorithm for pruning data paths during logic circuit timing verification is disclosed. It uses the correlation between delays on data paths and clock paths in order to prune non-critical data paths during the traversal of the network. Subnetworks are identified in the larger network. Pruning data consisting of the minimum possible delay across all possible paths through the subnetwork, the deskewing clocks, the clock arrival times, and hold times at the synchronizers in the subnetwork are identified the first time each subnetwork is analyzed. In later analysis, the pruning data stored for each subnetwork is used to determine whether a data path can be pruned. A path can be pruned if it is shown to be race-free based on the pruning data. In this way, non-critical paths need only be traced once during timing verification.
    Type: Grant
    Filed: April 11, 1997
    Date of Patent: April 4, 2000
    Assignee: Digital Equipment Corp.
    Inventors: Joel Joseph Grodstein, Nicholas L. Rethman, Nevine Nassif
  • Patent number: 5824169
    Abstract: A pneumatic tire having improved wet traction has lugs containing sipes which change direction within the lug and tie bars in the sipes near each point where the sipes change direction. Siping, and the positioning of tie bars, provide means for minimizing the difference of the principle direction of lug stiffness between individual lugs. Also, a tire of the invention has 4 pitch ratios which are distributed around the tire so that extra large pitches are not located next to small pitches.
    Type: Grant
    Filed: January 20, 1995
    Date of Patent: October 20, 1998
    Assignee: The Goodyear Tire & Rubber Company
    Inventors: Samuel Patrick Landers, John Steven Attinello, James Christopher Stroble, Joel Joseph Lazeration
  • Patent number: 5801957
    Abstract: A method for translating a boolean function into a logic circuit using gates from a standard library is provided. The method includes the steps of translating the boolean function into a network comprising a plurality of sub-trees, where each of the sub-trees represents a portion of the function, and where each sub-tree includes a plurality of representations for that portion of the function. The plurality of representations are stored in an alterative logic diagram, which comprises a plurality of ugates. The ugates are data structures which define the inputs and the connectivity of the respective ugate in the sub-tree. The sub-tree is mapped to gates from the standard library by selecting the best sub-tree representation. Accordingly, an improved method of logic synthesis is provided that allows for the optimal representation to be provided by starting with a wider range of inputs to the mapping process.
    Type: Grant
    Filed: November 1, 1995
    Date of Patent: September 1, 1998
    Assignee: Digital Equipment Corporation
    Inventors: Eric Lehman, Joel Joseph Grodstein, Heather Harkness, Kolar Kodandapani
  • Patent number: 5648911
    Abstract: The method for efficiently providing an optimized fanout network includes the steps of providing a series chain of inverters for driving a number of loads. Each load is assigned to a given location of the inverter chain according to the polarity and the required time of the load. Tree-covering techniques are used in conjunction with dynamic programming to minimize the total area of the fanout chain by selecting and sizing the gates to be used in the fanout chain. With such an arrangement, a minimal area fanout chain which satisfies the timing constraints of each load is provided.
    Type: Grant
    Filed: August 30, 1996
    Date of Patent: July 15, 1997
    Inventors: Joel Joseph Grodstein, Kolar L. Kodandapani, Herve Touati
  • Patent number: D384619
    Type: Grant
    Filed: May 6, 1996
    Date of Patent: October 7, 1997
    Assignee: The Goodyear Tire & Rubber Company
    Inventors: John Steven Attinello, Joel Joseph Lazeration, James Christopher Stroble, John Kotanides, Jr., Dale Gustav Freygang