Patents by Inventor Amna Z. Shawwa

Amna Z. Shawwa 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).

  • Interactive digital duty cycle compensation circuit for receiver
    Patent number: 8817914
    Abstract: A receiver circuit. A receiving stage is coupled to a first supply voltage and an input signal, and operative to generate a first intermediate signal from the input signal based on the first supply voltage. A compensation stage is coupled to a second supply voltage and the first intermediate signal, and operative to generate a second intermediate signal by adjusting duty cycle of the first intermediate signal upon detecting changes in the first supply voltage to compensate for the changes in the first supply voltage. An outputting stage is coupled to the second supply voltage and operative to generate an output signal based on the second supply voltage upon receiving the second intermediate signal. A voltage of the output signal is adjusted to a level of the second supply voltage and the output signal has a 50% duty cycle.
    Type: Grant
    Filed: August 26, 2011
    Date of Patent: August 26, 2014
    Assignee: Nanya Technology Corporation
    Inventors: Amna Z. Shawwa, Chia-Jen Chang
  • INTERACTIVE DIGITAL DUTY CYCLE COMPENSATION CIRCUIT FOR RECEIVER
    Publication number: 20130051495
    Abstract: A receiver circuit. A receiving stage is coupled to a first supply voltage and an input signal, and operative to generate a first intermediate signal from the input signal based on the first supply voltage. A compensation stage is coupled to a second supply voltage and the first intermediate signal, and operative to generate a second intermediate signal by adjusting duty cycle of the first intermediate signal upon detecting changes in the first supply voltage to compensate for the changes in the first supply voltage. An outputting stage is coupled to the second supply voltage and operative to generate an output signal based on the second supply voltage upon receiving the second intermediate signal. A voltage of the output signal is adjusted to a level of the second supply voltage and the output signal has a 50% duty cycle.
    Type: Application
    Filed: August 26, 2011
    Publication date: February 28, 2013
    Applicant: NANYA TECHNOLOGY CORPORATION
    Inventors: Amna Z. Shawwa, Chia-Jen Chang