Patents by Inventor Phillip R. Hays

Phillip R. Hays 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).

  • Metal detection methods and apparatus wherein a numeric representation of the sense signal and a noise contribution to the sense signal are produced
    Patent number: 7391217
    Abstract: Metal detectors include a sense coil coupled to an analog to digital converter that produces a numeric representation of an electrical signal associated with a conductive object situated in an active region of a sense coil. The numeric representation is processed to obtain a noise contribution associated with random noise, fixed pattern noise, and/or thermal drift. The noise is subtracted from the numeric representation to produce a numeric difference. The numeric difference includes contributions associated with conductive objects located in a sense volume defined by the sense coil. The numeric difference (or the numeric representation) can be digitally processed with, for example, a matched filter to enhance the conductive object contribution. The matched filter can be based on a measured sense coil speed or can be based on typical sense coil speeds.
    Type: Grant
    Filed: August 29, 2006
    Date of Patent: June 24, 2008
    Assignee: White's Electronics, Inc.
    Inventors: Michael H. Linse, Phillip R. Hays, Gary J. Oliver, Thomas V. Scrivner, Jimmy Jack Jewell
  • Inkjet pen adapter
    Patent number: 7360879
    Abstract: A pen adapter is configured, in one example, to include a body having an internal surface defining a set of negative datum features configured to interlock with a first set of positive datum features. An external surface of the pen adapter is configured to define a second set of positive datum features.
    Type: Grant
    Filed: July 29, 2004
    Date of Patent: April 22, 2008
    Inventors: Steven T. Castle, Jefferson P. Ward, Phillip R. Hays, Eric L. Ahlvin
  • Metal detection methods and apparatus
    Publication number: 20080054905
    Abstract: Metal detectors include a sense coil coupled to an analog to digital converter that produces a numeric representation of an electrical signal associated with a conductive object situated in an active region of a sense coil. The numeric representation is processed to obtain a noise contribution associated with random noise, fixed pattern noise, and/or thermal drift. The noise is subtracted from the numeric representation to produce a numeric difference. The numeric difference includes contributions associated with conductive objects located in a sense volume defined by the sense coil. The numeric difference (or the numeric representation) can be digitally processed with, for example, a matched filter to enhance the conductive object contribution. The matched filter can be based on a measured sense coil speed or can be based on typical sense coil speeds.
    Type: Application
    Filed: August 29, 2006
    Publication date: March 6, 2008
    Inventors: Michael H. Linse, Phillip R. Hays, Gary J. Oliver, Thomas V. Scrivner, Jimmy Jack Jewell