Patents by Inventor Luca Risi

Luca Risi 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).

  • Delay element with a perturber displaceable between first and second microstrip circuits
    Patent number: 8072296
    Abstract: A differential delay element for use, e.g., in selectively delaying RF signals in telecommunication systems includes a first microstrip circuit and a second microstrip circuit arranged side-by-side in a facing relationship. The first microstrip circuit defines a first delayed travel path for a first signal from a first input port to a first output port and the second microstrip circuit defines a second delayed travel path for a second signal from a second input port to a second output port. A perturber is arranged between the first and second microstrip circuits, displaceable toward and away from the first and second microstrip circuits, so that when the distance of the perturber to one of the microstrip circuits increases, the distance of the perturber to the other of the microstrip circuits decreases and viceversa.
    Type: Grant
    Filed: November 30, 2006
    Date of Patent: December 6, 2011
    Assignee: Pirelli & C. S.p.A.
    Inventors: Giuseppe Grassano, Vincenzo Boffa, Fabrizio Gatti, Luca Risi, Alfredo Ruscitto, Paolo Semenzato
  • DELAY ELEMENT AND A CORRESPONDING METHOD
    Publication number: 20100066464
    Abstract: A differential delay element for use, e.g., in selectively delaying RF signals in telecommunication systems includes a first microstrip circuit and a second microstrip circuit arranged side-by-side in a facing relationship. The first microstrip circuit defines a first delayed travel path for a first signal from a first input port to a first output port and the second microstrip circuit defines a second delayed travel path for a second signal from a second input port to a second output port. A perturber is arranged between the first and second microstrip circuits, displaceable toward and away from the first and second microstrip circuits, so that when the distance of the perturber to one of the microstrip circuits increases, the distance of the perturber to the other of the microstrip circuits decreases and viceversa.
    Type: Application
    Filed: November 30, 2006
    Publication date: March 18, 2010
    Inventors: Giuseppe Grassano, Vincento Boffa, Fabrizio Gatti, Luca Risi, Alfredo Ruscitto, Paolo Semenzato