Patents by Inventor Kevin David Powers

Kevin David Powers 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).

  • Storage media asperity characterization
    Patent number: 9335153
    Abstract: The present application discloses detecting an asperity on a storage media surface using two amplitude threshold crossings of an asperity detection signal within a preset timing window. The present application further discloses a temperature-dependent resistive asperity sensor and a preamplifier that correlates a resistance change at the asperity sensor within a preset timing window to detect an asperity on a storage media surface. The asperity may be one or both of a void in the storage media surface and a protrusion from the storage media surface.
    Type: Grant
    Filed: September 26, 2012
    Date of Patent: May 10, 2016
    Assignee: SEAGATE TECHNOLOGY LLC
    Inventors: Robert Matousek, Kevin David Powers, Dale Thomas Riley
  • STORAGE MEDIA ASPERITY DETECTION
    Publication number: 20140085745
    Abstract: The present application discloses a transducer head comprising a read element that reads data from a storage media and an asperity sensor that detects a dimension of an asperity on a surface of the storage media using a temperature change at the asperity sensor. The asperity may be one or both of a void in the surface of the storage media and a protrusion from the surface of the storage media.
    Type: Application
    Filed: September 26, 2012
    Publication date: March 27, 2014
    Applicant: SEAGATE TECHNOLOGY LLC
    Inventors: Kevin David Powers, Sandeep Bhushan, James J. Martin, Prasanna Manja Ramakrishna, Dale Thomas Riley, Vance Charles Kluver, Scott Howard Deits
  • STORAGE MEDIA ASPERITY CHARACTERIZATION
    Publication number: 20140086034
    Abstract: The present application discloses detecting an asperity on a storage media surface using two amplitude threshold crossings of an asperity detection signal within a preset timing window. The present application further discloses a temperature-dependent resistive asperity sensor and a preamplifier that correlates a resistance change at the asperity sensor within a preset timing window to detect an asperity on a storage media surface. The asperity may be one or both of a void in the storage media surface and a protrusion from the storage media surface.
    Type: Application
    Filed: September 26, 2012
    Publication date: March 27, 2014
    Applicant: SEAGATE TECHNOLOGY LLC
    Inventors: Robert Matousek, Kevin David Powers, Dale Thomas Riley
  • Storage media asperity detection
    Patent number: 8681438
    Abstract: The present application discloses a transducer head comprising a read element that reads data from a storage media and an asperity sensor that detects a dimension of an asperity on a surface of the storage media using a temperature change at the asperity sensor. The asperity may be one or both of a void in the surface of the storage media and a protrusion from the surface of the storage media.
    Type: Grant
    Filed: September 26, 2012
    Date of Patent: March 25, 2014
    Assignee: Seagate Technology LLC
    Inventors: Kevin David Powers, Sandeep Bhushan, James J. Martin, Prasanna Manja Ramakrishna, Dale Thomas Riley, Vance Charles Kluver, Scott Howard Deits