Patents by Inventor Bgahwati P. Agrawal

Bgahwati P. Agrawal 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 demodulation of frequency modulated signals
    Patent number: 4476435
    Abstract: The digital demodulation of frequency modulated signals produces a pulse duration modulated signal proportional to the analog modulation signal component of the FM input signal from the FM input signal and a delayed version thereof and the pulse duration modulated signal is then converted to a digital signal representative of the analog modulation signal component of the FM signal by a delta sigma modulator and a decimator which also provides equalization of the FM signal to remove pre-emphasis applied to the FM signal prior to its transmission.
    Type: Grant
    Filed: March 22, 1982
    Date of Patent: October 9, 1984
    Assignee: International Telephone and Telegraph Corporation
    Inventors: Hyokang Chang, Kishan Shenoi, Bgahwati P. Agrawal