Patents by Inventor Ted Burk

Ted Burk 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).

  • Systems and methods for gain calibration of an audio signal path
    Patent number: 9337795
    Abstract: A signal path may operate in one of a plurality of gain modes such that for each gain mode, the product of a digital gain and an analog signal gain of the signal path associated with the particular gain mode are approximately equal to a fixed path gain. During each of one or more calibration phases, a calibration system may measure analog signals at a plurality of nodes of the first path portion, calculate an actual analog gain associated with the gain mode based on the analog signals measured at the plurality of nodes, calculate an error between the fixed path gain and a mathematical product of the actual analog gain associated with the gain mode and the digital gain associated with the gain mode, and modify at least one of the digital gain and the analog gain associated with the gain mode in conformity with the error.
    Type: Grant
    Filed: September 9, 2014
    Date of Patent: May 10, 2016
    Assignee: Cirrus Logic, Inc.
    Inventors: Tejasvi Das, Xin Zhao, Ted Burk, Ku He, John L. Melanson, Xiaofan Fei
  • SYSTEMS AND METHODS FOR GAIN CALIBRATION OF AN AUDIO SIGNAL PATH
    Publication number: 20160072465
    Abstract: A signal path may operate in one of a plurality of gain modes such that for each gain mode, the product of a digital gain and an analog signal gain of the signal path associated with the particular gain mode are approximately equal to a fixed path gain. During each of one or more calibration phases, a calibration system may measure analog signals at a plurality of nodes of the first path portion, calculate an actual analog gain associated with the gain mode based on the analog signals measured at the plurality of nodes, calculate an error between the fixed path gain and a mathematical product of the actual analog gain associated with the gain mode and the digital gain associated with the gain mode, and modify at least one of the digital gain and the analog gain associated with the gain mode in conformity with the error.
    Type: Application
    Filed: September 9, 2014
    Publication date: March 10, 2016
    Inventors: Tejasvi Das, Xin Zhao, Ted Burk, Ku He, John L. Melanson, Xiaofan Fei