Patents by Inventor Benson H. Tongue

Benson H. Tongue 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).

  • Loudspeaker system with feedback control for improved bandwidth and distortion reduction
    Patent number: 6584204
    Abstract: A sound producing system includes a loudspeaker to generate an audible signal. A transducer generates a pressure feedback signal from the audible signal. A controller produces a controlled signal for application to the loudspeaker. The controller derives the controlled signal from the pressure feedback signal and an audio input signal. The controlled signal improves the Sound Pressure Level (SPL) frequency response and reduces distortion within a selected bandwidth of the loudspeaker.
    Type: Grant
    Filed: December 10, 1998
    Date of Patent: June 24, 2003
    Assignee: The Regents of the University of California
    Inventors: Khalid M. Al-Ali, Andrew Packard, Benson H. Tongue