Patents by Inventor Pavan Kumar Ramarapu

Pavan Kumar Ramarapu 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).

  • Production testing of a capacitive touch sensing device
    Patent number: 8253425
    Abstract: In one embodiment, a method for production testing of a capacitive touch sensing device is disclosed. In this embodiment, the present technology for production testing of a capacitive touch sensing device samples a first value corresponding to a first channel of a capacitive touch sensing device when the capacitive touch sensing device is in production. The present embodiment also samples a second value corresponding to the first channel of the capacitive touch sensing device when the capacitive touch sensing device has a self-test capacitive circuit applying a signal thereto. The present embodiment compares the first value and the second value to determine a production testing result for the first channel of the capacitive touch sensing device, wherein the sampling of the second value and the comparing the first value and the second value occur during production of the capacitive touch sensing device.
    Type: Grant
    Filed: January 28, 2008
    Date of Patent: August 28, 2012
    Assignee: Synaptics Incorporated
    Inventors: Joseph K. Reynolds, Pavan Kumar Ramarapu
  • Production testing of a capacitive touch sensing device
    Publication number: 20080278453
    Abstract: In one embodiment, a method for production testing of a capacitive touch sensing device is disclosed. In this embodiment, the present technology for production testing of a capacitive touch sensing device samples a first value corresponding to a first channel of a capacitive touch sensing device when the capacitive touch sensing device is in production. The present embodiment also samples a second value corresponding to the first channel of the capacitive touch sensing device when the capacitive touch sensing device has a self-test capacitive circuit applying a signal thereto. The present embodiment compares the first value and the second value to determine a production testing result for the first channel of the capacitive touch sensing device, wherein the sampling of the second value and the comparing the first value and the second value occur during production of the capacitive touch sensing device.
    Type: Application
    Filed: January 28, 2008
    Publication date: November 13, 2008
    Inventors: Joseph K. Reynolds, Pavan Kumar Ramarapu