Patents by Inventor Vishnudev Ramakrishnan

Vishnudev Ramakrishnan 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: 9582078
    Abstract: Techniques are described to furnish a touchless joystick-type controller in a portable electronic device. The techniques may be implemented within an electronic device that comprises one or more sensors configured to detect a target at a distance from the sensor and provide a signal in response thereto. The signal is received in response to the sensor detecting a target within a field of view of the sensor. A position of the target relative to a point of reference is then determined based on the signal. Movement of the target may be tracked based on changes in the determined position relative to the point of reference. In embodiments, the target comprises a thumb or a finger of a hand of a user of the electronic device and the determined position to furnish a joystick-type control input.
    Type: Grant
    Filed: November 7, 2013
    Date of Patent: February 28, 2017
    Assignee: Maxim Integrated Products, Inc.
    Inventors: Ilya K. Veygman, Richard I. Olsen, Daniel S. Christman, Vishnudev Ramakrishnan