Patents by Inventor Thomas John Makovicka

Thomas John Makovicka 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).

  • Methods and apparatus for providing volume control in communicating systems including a linear echo canceler
    Patent number: 6487178
    Abstract: In handsfree communications devices including a linear echo or noise canceler, both analog and digital gain factors are adjusted in response to user volume control inputs, the analog gain factor being frozen during active communications (e.g., during telephone calls). By providing dual user controls, one of which is disabled when a call is in progress, embodiments of the invention provide the wide dynamic range required in most handsfree applications without degrading performance of the linear echo canceler.
    Type: Grant
    Filed: May 12, 1999
    Date of Patent: November 26, 2002
    Assignee: Ericsson Inc.
    Inventors: Eric Douglas Romesburg, Thomas John Makovicka