Patents by Inventor Walter Andrés Zuluaga

Walter Andrés Zuluaga 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: 9143858
    Abstract: Embodiments are directed towards enabling headphones to perform active noise cancellation for a particular user. Each separate user may enable individualized noise canceling headphones for one or more noise environments. When the user is wearing the headphones in a quiet environment, a user may employ a computer to initiate determination of a plant model of each ear cup specific to the user. When the user is wearing the headphones in a target noise environment, the user may utilize the computer to initiate determination of operating parameters of a controller for each ear cup of the headphones. The computer may provide the operating parameters of each controller to the headphones. And the operation of each controller may be updated based on the determined operating parameters. The updated headphones may be utilized by the user to provide active noise cancellation.
    Type: Grant
    Filed: December 17, 2013
    Date of Patent: September 22, 2015
    Assignee: CSR Technology Inc.
    Inventors: Rogerio Guedes Alves, Walter Andrés Zuluaga
  • Publication number: 20140198925
    Abstract: An active noise cancellation controller for performing noise attenuation in a system over a predetermined frequency rang. The controller comprises several components: a first input for a reference signal indicative of a noise level; a second input for receiving an error signal indicative of a remnant noise level; an output for providing a noise cancellation signal; a fixed feedback controller for processing the error signal; a fixed feed-forward controller for processing the reference signal; and an adaptive feed-forward controller having a digital adaptive finite impulse response filter arranged for operation on the reference signal the error signal.
    Type: Application
    Filed: March 18, 2014
    Publication date: July 17, 2014
    Applicant: CAMBRIDGE SILICON RADIO LIMITED
    Inventors: Rogerio Guedes Alves, Walter Andrés Zuluaga
  • Publication number: 20140105412
    Abstract: Embodiments are directed towards enabling headphones to perform active noise cancellation for a particular user. Each separate user may enable individualized noise canceling headphones for one or more noise environments. When the user is wearing the headphones in a quiet environment, a user may employ a computer to initiate determination of a plant model of each ear cup specific to the user. When the user is wearing the headphones in a target noise environment, the user may utilize the computer to initiate determination of operating parameters of a controller for each ear cup of the headphones. The computer may provide the operating parameters of each controller to the headphones. And the operation of each controller may be updated based on the determined operating parameters. The updated headphones may be utilized by the user to provide active noise cancellation.
    Type: Application
    Filed: December 17, 2013
    Publication date: April 17, 2014
    Applicant: CSR TECHNOLOGY INC.
    Inventors: Rogerio Guedes Alves, Walter Andrés Zuluaga