Patents by Inventor Hiren R. Patel

Hiren R. Patel 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: 7949449
    Abstract: A method of controlling a work tool with respect to a design surface gradient identifies surface gradient and determines a desired angle for the work tool. Movement of the machine is monitored and the distance between the design surface gradient and the work tool is determined. The angle of the work tool is varied based on one or more of these parameters.
    Type: Grant
    Filed: December 19, 2007
    Date of Patent: May 24, 2011
    Assignee: Caterpillar Inc.
    Inventors: Roger D. Koch, Hiren R. Patel
  • Publication number: 20090159302
    Abstract: A method of controlling a work tool with respect to a design surface gradient identifies surface gradient and determines a desired angle for the work tool. Movement of the machine is monitored and the distance between the design surface gradient and the work tool is determined. The angle of the work tool is varied based on one or more of these parameters.
    Type: Application
    Filed: December 19, 2007
    Publication date: June 25, 2009
    Applicant: CATERPILLAR INC.
    Inventors: Roger D. Koch, Hiren R. Patel
  • Patent number: 5991890
    Abstract: A device and method for characterizing signal skew between a first signal and a second signal. The device includes a delay chain and a first transition detector in communication with the delay chain. The first transition detector is configured for receiving the first signal and provides a pulse signal to the delay chain upon detecting a transition of the first signal. The device includes a second transition detector which is in communication with a latch and is configured for receiving the second signal. The second transition detector sets the latch upon detecting a transition of the second signal. At least one pass gate is connected to the delay chain and the latch. At least one timing latch is connected to the pass gate for receiving signal skew information between the first and second signals.
    Type: Grant
    Filed: April 16, 1998
    Date of Patent: November 23, 1999
    Assignee: LSI Logic Corporation
    Inventors: Jeff S. Brown, Gerald R. Haag, Hiren R. Patel