Patents Assigned to Liberato Technologies, LLC
  • Patent number: 7162420
    Abstract: An apparatus and method for noise reduction employ a first processor having one or more channels, each channel comprising a respective first processor filter, and each channel configured to receive a respective one of one or more input signals. The first processor is configured to provide an intermediate output signal. The apparatus and method further employ a second processor including a second processor filter configured to receive the intermediate output signal and to provide a noise-reduced output signal. The apparatus and method further employ a first adaptation processor coupled to the first processor and a second adaptation processor coupled to the second processor. In some embodiments, an echo canceling processor reduces an echo portion associated with the noise-reduced output signal. In some embodiments, a response of the first filter portion and of the second filter portion are dynamically adapted.
    Type: Grant
    Filed: December 10, 2002
    Date of Patent: January 9, 2007
    Assignee: Liberato Technologies, LLC
    Inventors: Kambiz C. Zangi, Steven Isabelle