Patents by Inventor Daniel J. Plummer

Daniel J. Plummer 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).

  • Virtual reality peripheral vision scotoma screening
    Patent number: 6736511
    Abstract: The invention utilizes a virtual reality display to present a random noise stimulus to a patient. Using an input device a patient indicates the location of disturbances in the random noise display. In a preferred embodiment, a scanning retinal laser projects the random noise stimulus directly onto a patient's eye(s). The image is preferably presented at virtual infinity and can be imaged over the peripheral retina. A patient is directed to centrally fixate on the random noise display. A visual aid, such as a cross hair, may be included in the generated display to facilitate this focus. With a scanning laser virtual reality device having a narrow exit, the failure of a patient to centrally fixate causes the image presented to be distorted, incomplete or disappear from view. While a patient views the random noise display, the patient is directed to indicate any areas of disturbance using an input device. A preferred input device is a computer pen and tablet.
    Type: Grant
    Filed: November 1, 2002
    Date of Patent: May 18, 2004
    Assignee: The Regents of the University of California
    Inventors: Daniel J. Plummer, Dirk-Uwe G. Bartsch, William R. Freeman
  • Virtual reality peripheral vision scotoma screening
    Publication number: 20030117582
    Abstract: The invention utilizes a virtual reality display to present a random noise stimulus to a patient. Using an input device a patient indicates the location of disturbances in the random noise display. In a preferred embodiment, a scanning retinal laser projects the random noise stimulus directly onto a patient's eye(s). The image is preferably presented at virtual infinity and can be imaged over the peripheral retina. A patient is directed to centrally fixate on the random noise display. A visual aid, such as a cross hair, may be included in the generated display to facilitate this focus. With a scanning laser virtual reality device having a narrow exit, the failure of a patient to centrally fixate causes the image presented to be distorted, incomplete or disappear from view. While a patient views the random noise display, the patient is directed to indicate any areas of disturbance using an input device. A preferred input device is a computer pen and tablet.
    Type: Application
    Filed: November 1, 2002
    Publication date: June 26, 2003
    Applicant: The Regents of the University of California
    Inventors: Daniel J. Plummer, Dirk-Uwe G. Bartsch, William R. Freeman
  • Virtual reality peripheral vision scotoma screening
    Patent number: 6494578
    Abstract: The invention utilizes a virtual reality display to present a random noise stimulus to a patient. Using an input device a patient indicates the location of disturbances in the random noise display. In a preferred embodiment, a scanning retinal laser projects the random noise stimulus directly onto a patient's eye(s). The image is preferably presented at virtual infinity and can be imaged over the peripheral retina. A patient is directed to centrally fixate on the random noise display. A visual aid, such as a cross hair, may be included in the generated display to facilitate this focus. With a scanning laser virtual reality device having a narrow exit, the failure of a patient to centrally fixate causes the image presented to be distorted, incomplete or disappear from view. While a patient views the random noise display, the patient is directed to indicate any areas of disturbance using an input device. A preferred input device is a computer pen and tablet.
    Type: Grant
    Filed: July 13, 2000
    Date of Patent: December 17, 2002
    Assignee: The Regents of the University of California
    Inventors: Daniel J. Plummer, Dirk-Uwe G. Bartsch, William R. Freeman