Patents Assigned to Teledyne Acoustic Research
  • Input filtering apparatus for loudspeakers
    Patent number: 4113983
    Abstract: Improved input filtering apparatus for loudspeaker systems, and loudspeaker systems including such apparatus. The bass roll-off point of input filtering apparatus for loudspeakers is automatically adjusted to an optimum in accordance with the amplitude and spectral content of the audio signal being received at the time, thereby attenuating components in the signal liable to cause "bottoming" of the loudspeaker.
    Type: Grant
    Filed: April 20, 1976
    Date of Patent: September 12, 1978
    Assignee: Teledyne Acoustic Research
    Inventor: Paul Franklin Steel