Patents by Inventor Nabil M. Sinoussi

Nabil M. Sinoussi 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).

  • Method and apparatus to control the LC tank temperature null characteristic in a highly stable LC oscillator
    Patent number: 8884718
    Abstract: A substantially temperature-independent LC-based oscillator uses bias control techniques. Temperature independence may be achieved by controlling the harmonic frequency content of the output of the oscillator by controlling the amplitude. Amplitude control may be achieved by inserting a control mechanism in the feedback loop of the oscillator.
    Type: Grant
    Filed: August 8, 2012
    Date of Patent: November 11, 2014
    Assignee: Si-Ware Systems
    Inventors: Nabil M. Sinoussi, Mohamed M. Weheiba, Ahmed A. Helmy, Ahmed H. A. Razek, Ayman Ahmed
  • Temperature-stable LC oscillators and methods of oscillation at temperature null phase
    Patent number: 8810329
    Abstract: An LC oscillator tank that generates a tank oscillation at a phase substantially equal to a temperature null phase. The oscillator further includes frequency stabilizer circuitry coupled to the LC oscillator tank to cause the LC oscillator tank to operate at the temperature null phase. In one aspect of the disclosure, a feedback loop may split the output voltage of the LC tank into two voltages having different phases, where each voltage is independently transformed into a current through programmable transconductors, The two currents may be combined to form a resultant current which is then applied to the LC tank. The phase of the resultant current is such that the LC tank operates at an impedance condition that achieves frequency stability across temperature.
    Type: Grant
    Filed: August 8, 2012
    Date of Patent: August 19, 2014
    Inventors: Nabil M. Sinoussi, Bassel Hanafi
  • TEMPERATURE-STABLE LC OSCILLATORS AND METHODS OF OSCILLATION AT TEMPERATURE NULL PHASE
    Publication number: 20130314168
    Abstract: An LC oscillator tank that generates a tank oscillation at a phase substantially equal to a temperature null phase. The oscillator further includes frequency stabilizer circuitry coupled to the LC oscillator tank to cause the LC oscillator tank to operate at the temperature null phase. In one aspect of the disclosure, a feedback loop may split the output voltage of the LC tank into two voltages having different phases, where each voltage is independently transformed into a current through programmable transconductors, The two currents may be combined to form a resultant current which is then applied to the LC tank. The phase of the resultant current is such that the LC tank operates at an impedance condition that achieves frequency stability across temperature.
    Type: Application
    Filed: August 8, 2012
    Publication date: November 28, 2013
    Inventors: Nabil M. Sinoussi, Bassel Hanafi
  • METHOD AND APPARATUS TO CONTROL THE LC TANK TEMPERATURE NULL CHARACTERISTIC IN A HIGHLY STABLE LC OSCILLATOR
    Publication number: 20130314167
    Abstract: A substantially temperature-independent LC-based oscillator uses bias control techniques. Temperature independence may be achieved by controlling the harmonic frequency content of the output of the oscillator by controlling the amplitude. Amplitude control may be achieved by inserting a control mechanism in the feedback loop of the oscillator.
    Type: Application
    Filed: August 8, 2012
    Publication date: November 28, 2013
    Inventors: Nabil M. Sinoussi, Mohamed M. Weheiba, Ahmed A. Helmy, Ahmed H.A. Razek, Ayman Ahmed