Patents by Inventor Edwin P. Walker

Edwin P. Walker 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).

  • Publication number: 20230266602
    Abstract: A system and method are provided for super-resolution imaging beyond the Rayleigh spatial resolution limit of an optical system. In the context of a system, first and second pinhole assemblies are configured to be controllably positioned. The first and second pinhole assemblies define respective pinholes and being configured to be backlit. The system also includes a collimating lens configured to collimate at least a portion of the signals passing through the respective pinholes of the first and second pinhole assemblies. The system further includes an amplitude/phase mask configured to provide amplitude and phase modulation to signals received from the collimating lens and an imaging lens configured to focus the signals received from the amplitude/phase mask upon an image plane to permit objects to be separately identified.
    Type: Application
    Filed: February 23, 2022
    Publication date: August 24, 2023
    Applicant: THE BOEING COMPANY
    Inventors: Edwin P. WALKER, Steven F. GRIFFIN, Sudhakar PRASAD
  • Patent number: 7436750
    Abstract: Systems, materials, and methods for increasing the storage capacity of optical recording media are provided. In one aspect, the systems of the present invention take advantage of high NA optics to realize ultra high storage capacity. In another aspect, the systems of the present invention include the use of a liquid interface between the recording medium and a liquid interface singlet objective lens to increase storage capacity. The invention also provides for a material system that allows shorter wavelengths to be used for recording and readout. Further, the invention provides for recording methods wherein the wavelength for recording to a medium is longer than the wavelength for reading from the medium. Additionally, the invention includes a multilayer structure for recording media that increases storage capacity. In another aspect of the present invention, high NA optics and related systems and methods are utilized to increase the storage capacity of optical storage systems.
    Type: Grant
    Filed: June 14, 2004
    Date of Patent: October 14, 2008
    Assignee: Call/Recall Inc.
    Inventors: Edwin P. Walker, Yi Zhang, Yoshinao Taketomi
  • Publication number: 20040257962
    Abstract: Systems, materials, and methods for increasing the storage capacity of optical recording media are provided. In one aspect, the systems of the present invention take advantage of high NA optics to realize ultra high storage capacity. In another aspect, the systems of the present invention include the use of a liquid interface between the recording medium and a liquid interface singlet objective lens to increase storage capacity. The invention also provides for a material system that allows shorter wavelengths to be used for recording and readout. Further, the invention provides for recording methods wherein the wavelength for recording to a medium is longer than the wavelength for reading from the medium. Additionally, the invention includes a multilayer structure for recording media that increases storage capacity. In another aspect of the present invention, high NA optics and related systems and methods are utilized to increase the storage capacity of optical storage systems.
    Type: Application
    Filed: June 14, 2004
    Publication date: December 23, 2004
    Applicant: Call/Recall Inc.
    Inventors: Edwin P. Walker, Yi Zhang, Yoshinao Taketomi