Patents by Inventor Rashmi Raghavendra Rao

Rashmi Raghavendra Rao 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: 8872764
    Abstract: This disclosure provides systems and methods for illumination systems with one or more reflective structures over a light guide. In one aspect, each reflective structure can have an absorber structure with a width greater than a width of the reflective structure. The absorber structure can have overhanging portions that are in parallel with and laterally protrude past one or more edges of the reflective structure, or the absorber structure can have enclosing portions that substantially enclose the reflective structure. The reflective structures can include light-turning features, such as facets, and/or conductive wires, such as touch sensor wires.
    Type: Grant
    Filed: June 29, 2012
    Date of Patent: October 28, 2014
    Assignee: QUALCOMM MEMS Technologies, Inc.
    Inventors: Jyotindra Raj Shakya, Russel Allyn Martin, Ion Bita, Donald John Elloway, Rashmi Raghavendra Rao
  • Publication number: 20140002345
    Abstract: This disclosure provides systems and methods for illumination systems with one or more reflective structures over a light guide. In one aspect, each reflective structure can have an absorber structure with a width greater than a width of the reflective structure. The absorber structure can have overhanging portions that are in parallel with and laterally protrude past one or more edges of the reflective structure, or the absorber structure can have enclosing portions that substantially enclose the reflective structure. The reflective structures can include light-turning features, such as facets, and/or conductive wires, such as touch sensor wires.
    Type: Application
    Filed: June 29, 2012
    Publication date: January 2, 2014
    Applicant: QUALCOMM MEMS TECHNOLOGIES, INC.
    Inventors: Jyotindra Raj Shakya, Russel Allyn Martin, Ion Bita, Donald John Elloway, Rashmi Raghavendra Rao
  • Publication number: 20120274602
    Abstract: This disclosure provides systems, methods and apparatus for a projected capacitive touch (PCT) sensor that may include thin sensor electrodes coated with additional layers to form an optical cavity that reinforces a wavelength range or color of incident light. The sensor electrodes and a cover glass border and/or decorations may be fabricated simultaneously. In some implementations, the thickness of the optical cavity will be selected such that the “color” of reflected light is black. The sensor electrodes may not be noticeable to a human observer. However, in some other implementations, the thickness of the optical cavity may be selected such that the sensor electrodes and/or the decorative portions will have another color. Routing wires of the touch sensor may be shielded by a grounded conductive layer in the border.
    Type: Application
    Filed: November 4, 2011
    Publication date: November 1, 2012
    Applicant: QUALCOMM MEMS TECHNOLOGIES, INC.
    Inventors: Ion Bita, Rashmi Raghavendra Rao, Kebin Li