Patents by Inventor Gregory K. Cambrell

Gregory K. Cambrell 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: 11089401
    Abstract: Apparatus for managing and/or reducing harmonic distortion arising with an audio signal including a phase generator for generating at least one phase-difference signal or a reference audio signal generated by the phase generator, wherein the or each constant phase difference is adapted to provide cancellation of the harmonic distortion components arising along the signal path. Respective amplifier channels for receiving and separately amplifying the audio signal acting as a reference audio signal are also provided as are respective loudspeaker channels for receiving and separately producing sound corresponding to the amplified audio wherein each loudspeaker channel has substantially equal performance parameters and is adapted to radiate the sound relative to other loudspeaker channels to produce a combined sound that corresponds to the audio signal with harmonic distortion components that are reduced compared to the harmonic distortion components arising along the signal path.
    Type: Grant
    Filed: June 30, 2017
    Date of Patent: August 10, 2021
    Inventors: Gregory K. Cambrell, Zeljko Velican
  • Patent number: 10595119
    Abstract: Apparatus for managing and/or reducing harmonic distortion arising with an audio signal including a phase generator for generating at least one phase-difference signal or a reference audio signal generated by the phase generator, wherein the or each constant phase difference is adapted to provide cancellation of the harmonic distortion components arising along the signal path. Respective amplifier channels for receiving and separately amplifying the audio signal acting as a reference audio signal are also provided as are respective loudspeaker channels for receiving and separately producing sound corresponding to the amplified audio wherein each loudspeaker channel has substantially equal performance parameters and is adapted to radiate the sound relative to other loudspeaker channels to produce a combined sound that corresponds to the audio signal with harmonic distortion components that are reduced compared to the harmonic distortion components arising along the signal path.
    Type: Grant
    Filed: June 30, 2017
    Date of Patent: March 17, 2020
    Assignee: Blueprint Acoustics Pty Ltd
    Inventors: Gregory K. Cambrell, Zeljko Velican
  • Publication number: 20180255391
    Abstract: The transparent conductive film includes on a transparent film base a transparent electrode layer in which a transparent conductive oxide layer and a patterned metal layer are stacked in contact with each other. The maximum layer thickness of the transparent electrode layer is 300 nm or less. The metal layer has a metal pattern width of 1 ?m or more and 8 ?m or less, and the metal pattern coverage ratio of 0.4% or more and 3.2% or less. It is preferable that the metal layer has a layer thickness of 50 nm or more and 250 nm or less. It is also preferable that the pattern shape of the metal layer is of stripes, mesh, dots or the like.
    Type: Application
    Filed: June 30, 2017
    Publication date: September 6, 2018
    Applicants: Blueprint Acoustics Pty Ltd, Blueprint Acoustics Pty Ltd
    Inventors: Gregory K. Cambrell, Zeljko Velican