Patents by Inventor Mohamed AH. Mostafa

Mohamed AH. Mostafa 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).

  • Half-integer frequency dividers that support 50% duty cycle signal generation
    Patent number: 9270280
    Abstract: A fractional-N frequency divider includes a half-integer frequency divider and a duty cycle adjustment circuit. The half-integer frequency divider includes a multi-modulus divider containing a cascaded chain of div2/3 cells, which is responsive to a multi-bit modulus control signal, and a phase control circuit configured support half-integer frequency division by the multi-modulus divider, by providing an input terminal of the multi-modulus divider with a periodically phase-flipped input signal having a first frequency. The duty-cycle adjustment circuit is configured to generate a divider output signal with a 50% duty cycle in response to a periodic signal generated by the half-integer frequency divider.
    Type: Grant
    Filed: December 20, 2013
    Date of Patent: February 23, 2016
    Assignee: INTEGRATED DEVICE TECHNOLOGY, INC.
    Inventors: Mihai A. Margarit, Mohamed AH. Mostafa