Patents by Inventor Stephen John Penfold

Stephen John Penfold 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).

  • Audio testing system and method
    Patent number: 7120256
    Abstract: A method is provided for increasing the quality of audio reproduction of a binaural rendering in a passenger environment having a number of seats, each seat having an audio system including a headphone jack for interconnection with a headphone device. The method comprising the steps of: playing predetermined audio tones over the audio system, and interconnecting a testing system to the headphone jack of the seats to monitor the signal received by the headphone jack to determine the audio quality of reproduction of the seat. The invention extends to an audio monitoring device, an audio monitoring system, and a storage medium carrying said audio tones.
    Type: Grant
    Filed: June 21, 2002
    Date of Patent: October 10, 2006
    Assignee: Dolby Laboratories Licensing Corporation
    Inventors: Alexandru Grancea, Stephen John Penfold
  • Audio testing system and method
    Publication number: 20030235311
    Abstract: A method is provided for increasing the quality of audio reproduction of a binaural rendering in a passenger environment having a number of seats, each seat having an audio system including a headphone jack for interconnection with a headphone device. The method comprising the steps of: playing predetermined audio tones over the audio system, and interconnecting a testing system to the headphone jack of the seats to monitor the signal received by the headphone jack to determine the audio quality of reproduction of the seat. The invention extends to an audio monitoring device, an audio monitoring system, and a storage medium carrying said audio tones.
    Type: Application
    Filed: June 21, 2002
    Publication date: December 25, 2003
    Applicant: Lake Technology Limited
    Inventors: Alexandru Grancea, Stephen John Penfold