Patents by Inventor Amit Gattani

Amit Gattani 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).

  • Digital calibration method and apparatus for multi-bit delta-sigma D/A converter
    Patent number: 6229466
    Abstract: A system and method for calibrating a multi-bit feedback quantizer in a delta-sigma modulation system. A digital data pattern corresponding to a particular DAC code of a multi-bit digital-to-analog converter is transmitted in the transmit channel, where the DAC code is proportional to an analog voltage signal. An effective DC component of the digital data pattern is realized and converted to corresponding digital DC component values. A predetermined number of samples of the digital DC component values are averaged to provide an average sample value. A digital code in the multi-bit feedback quantizer is replaced with the average sample value.
    Type: Grant
    Filed: August 23, 1999
    Date of Patent: May 8, 2001
    Assignee: Level One Communications, Inc.
    Inventor: Amit Gattani