Patents by Inventor Tofayel Ahmed

Tofayel Ahmed 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).

  • Phase deglitch circuit for phase interpolator for high-speed serial I/O applications
    Patent number: 7653167
    Abstract: Various embodiments provide a Phase Interpolator (PI) that receives input clocks, and outputs intersymbol interference-equalized, phase-shifted output clocks. In one embodiment, the Phase Interpolator comprises two PI Conditioners and a PI Mixer. In one embodiment, a PI Conditioner receives input clocks and is controlled by a different phase-shifted input clock by using a suitable circuit element, such as a flip-flop. Collectively, the input clock-controlled PI Conditioner and Mixer act in concert to control the band limiting effect of the PI Conditioner which, in turn, equalizes intersymbol interference.
    Type: Grant
    Filed: September 7, 2006
    Date of Patent: January 26, 2010
    Assignee: Intel Corporation
    Inventors: Hongjiang Song, Tofayel Ahmed
  • Phase deglitch circuit for phase interpolator for high-speed serial I/O applications
    Publication number: 20080063124
    Abstract: Various embodiments provide a Phase Interpolator (PI) that receives input clocks, and outputs intersymbol interference-equalized, phase-shifted output clocks. In one embodiment, the Phase Interpolator comprises two PI Conditioners and a PI Mixer. In one embodiment, a PI Conditioner receives input clocks and is controlled by a different phase-shifted input clock by using a suitable circuit element, such as a flip-flop. Collectively, the input clock-controlled PI Conditioner and Mixer act in concert to control the band limiting effect of the PI Conditioner which, in turn, equalizes intersymbol interference.
    Type: Application
    Filed: September 7, 2006
    Publication date: March 13, 2008
    Inventors: Hongjiang Song, Tofayel Ahmed