Patents by Inventor Khalid J. Sidiqi

Khalid J. Sidiqi 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).

  • Publication number: 20090103750
    Abstract: A digital offset is combined with an audio signal in the digital domain to cancel an output offset caused by one or more analog components processing the same audio signal. In this manner, the offset at the output of the audio signal path (e.g., at a power amplifier output) is reduced or eliminated. Consequently, audible artifacts, such as click-and-pop artifacts, can be reduced or eliminated. In audio devices operating in ground-referenced capless mode, power consumption is reduced because of reduced or eliminated direct current (DC) leakage current through speakers or headsets of such audio devices. In some circumstances, the digital offset in the digital domain may be applied at substantially all times of operation of the audio signal path.
    Type: Application
    Filed: September 25, 2008
    Publication date: April 23, 2009
    Applicant: QUALCOMM Incorporated
    Inventors: Uma Chilakapati, Seyfollah Bazarjani, Joseph Fitzgerald, Guoqing Miao, Hui-Ya Nelson, Khalid J. Sidiqi, Jeffrey M. Hinrichs