Patents by Inventor Sathya R. Alexander

Sathya R. Alexander 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).

  • Pressure sensitive surfaces
    Patent number: 7077009
    Abstract: A position sensor comprises a substrate having an array of pressure sensors and a membrane overlying the substrate. The membrane includes physical parameters which vary with position. The membrane may include discontinuous regions and protrusions which affect the way in which forces on the membrane are distributed to the substrate. A pressure sensor may also include a controller for receiving pressure information from the substrate, with a signal processor being programmed to localize the depressed region or regions of the substrate.
    Type: Grant
    Filed: January 28, 2004
    Date of Patent: July 18, 2006
    Assignee: Tactex Controls Inc.
    Inventors: David M. Lokhorst, Sathya R. Alexander
  • Pressure sensitive surfaces
    Publication number: 20040182164
    Abstract: A position sensor comprises a substrate having an array of pressure sensors and a membrane overlying the substrate. The membrane includes physical parameters which vary with position. The membrane may include discontinuous regions and protrusions which affect the way in which forces on the membrane are distributed to the substrate. A pressure sensor may also include a controller for receiving pressure information from the substrate, with a signal processor being programmed to localize the depressed region or regions of the substrate.
    Type: Application
    Filed: January 28, 2004
    Publication date: September 23, 2004
    Applicant: Tactex Controls Inc.
    Inventors: David M. Lokhorst, Sathya R. Alexander
  • Pressure sensitive surfaces
    Patent number: 6715359
    Abstract: A position sensor comprises a substrate having an array of pressure sensors and a membrane overlying the substrate. The membrane includes physical parameters which vary with position. The membrane may include discontinuous regions and protrusions which affect the way in which forces on the membrane are distributed to the substrate. A pressure sensor may also include a controller for receiving pressure information from the substrate, with a signal processor being programmed to localize the depressed region or regions of the substrate.
    Type: Grant
    Filed: June 28, 2002
    Date of Patent: April 6, 2004
    Assignee: Tactex Controls Inc.
    Inventors: David M. Lokhorst, Sathya R. Alexander
  • Pressure sensitive surfaces
    Publication number: 20030079549
    Abstract: A position sensor comprises a substrate having an array of pressure sensors and a membrane overlying the substrate. The membrane includes physical parameters which vary with position. The membrane may include discontinuous regions and protrusions which affect the way in which forces on the membrane are distributed to the substrate. A pressure sensor may also include a controller for receiving pressure information from the substrate, with a signal processor being programmed to localize the depressed region or regions of the substrate.
    Type: Application
    Filed: June 28, 2002
    Publication date: May 1, 2003
    Inventors: David M. Lokhorst, Sathya R. Alexander