Patents by Inventor Lance E. Hamilton

Lance E. Hamilton 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).

  • Devices and methods for testing the operability of audio speakers
    Patent number: 8270623
    Abstract: A device for testing the operability of an audio speaker includes a housing, a unidirectional microphone and a display. The underside of the housing comprises a recessed area. The unidirectional microphone is positioned and oriented in the recessed area such that the unidirectional microphone is recessed from the underside of the housing. The display is positioned on the housing such that the display is visible when the testing device is placed proximate an audio speaker with the underside of the housing facing the audio speaker. The display may include at least one visual indicator operatively coupled to the unidirectional microphone such that, when the unidirectional microphone is receiving an acoustic signal, the at least one visual indicator is illuminated.
    Type: Grant
    Filed: June 9, 2008
    Date of Patent: September 18, 2012
    Assignee: Toyota Motor Engineering & Manufacturing North America, Inc.
    Inventors: Lance E. Hamilton, Andrew I. McGuire, Troy L. Allen
  • Devices for testing the operability of electronic circuitry
    Patent number: 7859420
    Abstract: A device for testing the operability of an AC power outlet, a DC power outlet and A/V input jacks may include an AC test circuit, a DC test circuit, an A/V test circuit, a logic circuit, and a system OK indicator. At least the AC test circuit and the DC test circuit may be operatively connected to the logic circuit such that when at least the AC plug and the DC plug are inserted in a functioning power outlets, the system OK indicator is activated.
    Type: Grant
    Filed: June 9, 2008
    Date of Patent: December 28, 2010
    Assignee: Toyota Motor Engineering & Manufacturing North America, Inc.
    Inventors: Lance E. Hamilton, Andrew I. McGuire
  • Devices for Testing the Operability of Electronic Circuitry
    Publication number: 20090303062
    Abstract: A device for testing the operability of an AC power outlet, a DC power outlet and A/V input jacks may include an AC test circuit, a DC test circuit, an A/V test circuit, a logic circuit, and a system OK indicator. At least the AC test circuit and the DC test circuit may be operatively connected to the logic circuit such that when at least the AC plug and the DC plug are inserted in a functioning power outlets, the system OK indicator is activated.
    Type: Application
    Filed: June 9, 2008
    Publication date: December 10, 2009
    Applicant: Toyota Motor Engineering & Manufacturing North America, Inc.
    Inventors: Lance E. Hamilton, Andrew I. McGuire
  • Devices and Methods for Testing the Operability of Audio Speakers
    Publication number: 20090304193
    Abstract: A device for testing the operability of an audio speaker includes a housing, a unidirectional microphone and a display. The underside of the housing comprises a recessed area. The unidirectional microphone is positioned and oriented in the recessed area such that the unidirectional microphone is recessed from the underside of the housing. The display is positioned on the housing such that the display is visible when the testing device is placed proximate an audio speaker with the underside of the housing facing the audio speaker. The display may include at least one visual indicator operatively coupled to the unidirectional microphone such that, when the unidirectional microphone is receiving an acoustic signal, the at least one visual indicator is illuminated.
    Type: Application
    Filed: June 9, 2008
    Publication date: December 10, 2009
    Applicant: Toyota Motor Engineering & Manufacturing North America, Inc.
    Inventors: Lance E. Hamilton, Andrew I. McGuire, Troy L. Allen