Patents by Inventor Lorenzo IOTTI

Lorenzo IOTTI 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).

  • Publication number: 20240195371
    Abstract: An apparatus, such as a coherent optical receiver, includes a trans-impedance amplifier (TIA) and a low dropout (LDO) voltage regulator circuit for providing a supply voltage to the TIA. The LDO circuit is configured to adjust the supply voltage responsive to a DC voltage at an output of the TIA. In some implementations the LDO circuit may provide only a fraction of a supply current to the TIA, with another fraction provided by a partial current replica source.
    Type: Application
    Filed: July 21, 2023
    Publication date: June 13, 2024
    Inventors: Mark Ferriss, Lorenzo Iotti, Alexander Rylyakov
  • Publication number: 20240195364
    Abstract: An apparatus, such as a coherent optical receiver, includes a transimpedance amplifier (TIA) with differential outputs, and a multi-tanh type current limiter connected across the differential outputs of the transimpedance amplifier. The multi-tanh type current limiter includes two tanh-type current limiters shifted in voltage and connected to subtract an output current thereof from an output current of the TIA.
    Type: Application
    Filed: July 21, 2023
    Publication date: June 13, 2024
    Inventors: Mark Ferriss, Lorenzo Iotti, Alexander Rylyakov
  • Publication number: 20240195374
    Abstract: An apparatus, e.g., an optical signal receiver, includes a trans-impedance amplifier (TIA) circuit. The TIA circuit includes a variable gain amplifier (VGA) having a tunable tail current source. The TIA circuit is configured to tune the tail current source to stabilize a DC current to a load resistor of the VGA over an operating gain range of the TIA circuit.
    Type: Application
    Filed: July 21, 2023
    Publication date: June 13, 2024
    Inventors: Lorenzo Iotti, Mark Ferriss, Alexander Rylyakov
  • Publication number: 20240195373
    Abstract: An apparatus, such as a coherent optical receiver, includes a TIA, the TIA including a cascode circuit having a cascode node. A first tunable element is connected to tunably shunt the cascode node to vary a voltage gain of the TIA, e.g., up to a first amount. Implementations of the TIA further include another tunable element connected to vary a load of the cascode circuit to vary the voltage gain, e.g., up to a second amount. A current steering circuit may be provided to vary the voltage gain up to a third amount, each of the amounts being only a fraction of a target voltage gain variation of the TIA.
    Type: Application
    Filed: July 21, 2023
    Publication date: June 13, 2024
    Inventors: Lorenzo Iotti, Mark Ferriss, Alexander Rylyakov
  • Patent number: 9667192
    Abstract: An oscillator has an oscillator output emitting an oscillating signal. The oscillator includes oscillator cores which each have a same circuit topology. A set of configuration switches couple a selected number of oscillator cores in parallel to generate the oscillating signal. The oscillator cores are arranged with a symmetry around a central axis. The planar inductors of the oscillator cores are arranged in a petal-like pattern with the planar inductors forming the petals of the petal-like pattern. The selected coupling of the oscillator cores in made in response to a selected phase noise threshold of a modulation device which receives the oscillating signal.
    Type: Grant
    Filed: May 5, 2016
    Date of Patent: May 30, 2017
    Assignee: STMicroelectronics S.r.l.
    Inventors: Lorenzo Iotti, Andrea Mazzanti, Andrea Pallotta, Francesco Svelto
  • Publication number: 20170104453
    Abstract: An oscillator has an oscillator output emitting an oscillating signal. The oscillator includes oscillator cores which each have a same circuit topology. A set of configuration switches couple a selected number of oscillator cores in parallel to generate the oscillating signal. The oscillator cores are arranged with a symmetry around a central axis. The planar inductors of the oscillator cores are arranged in a petal-like pattern with the planar inductors forming the petals of the petal-like pattern. The selected coupling of the oscillator cores in made in response to a selected phase noise threshold of a modulation device which receives the oscillating signal.
    Type: Application
    Filed: May 5, 2016
    Publication date: April 13, 2017
    Applicant: STMicroelectronics S.r.l.
    Inventors: Lorenzo Iotti, Andrea Mazzanti, Andrea Pallotta, Francesco Svelto
  • Patent number: 9435951
    Abstract: The invention relates to a method for manufacturing a waveguide (40) including a semiconducting junction (23). The method comprises the following steps: providing a support (10) comprising a semiconducting layer (20) having a first part (21) of a first conductivity type ; protecting the first part ; selectively implanting a second conductivity-type dopants in a second part (22) of the semiconducting layer (20) adjacent to the first part (21, 221). The concentration of second conductivity-type dopants in the second part (22, 222) is greater than the one of first conductivity-type dopants in the first part (21, 221).
    Type: Grant
    Filed: November 30, 2015
    Date of Patent: September 6, 2016
    Assignee: Commissariat a l'energie atomique et aux energies alternatives
    Inventors: Maryse Fournier, Daivid Fowler, Edouard Grellier, Lorenzo Iotti
  • Publication number: 20160154180
    Abstract: The invention relates to a method for manufacturing a waveguide (40) including a semiconducting junction (23). The method comprises the following steps: providing a support (10) comprising a semiconducting layer (20) having a first part (21) of a first conductivity type ; protecting the first part ; selectively implanting a second conductivity-type dopants in a second part (22) of the semiconducting layer (20) adjacent to the first part (21, 221). The concentration of second conductivity-type dopants in the second part (22, 222) is greater than the one of first conductivity-type dopants in the first part (21, 221).
    Type: Application
    Filed: November 30, 2015
    Publication date: June 2, 2016
    Applicant: Commissariat A L'Energie Atomique et aux Energies Alternatives
    Inventors: Maryse FOURNIER, Daivid Fowler, Edouard Grellier, Lorenzo Iotti
  • Publication number: 20100156118
    Abstract: A cap for fuel tanks, in particular for motorcycles, comprising: an annular body, predisposed to be fixed stably on board an access opening of a tank, which access opening delimits a through-opening through which the tank can be accessed; a lid, constrained rotatably to the annular body, which is rotatable between an open position, in which the through-opening can be accessed, and a closed position, in which the through-opening cannot be accessed; a closure device, predisposed to block the lid in the closed position.
    Type: Application
    Filed: December 17, 2009
    Publication date: June 24, 2010
    Applicant: ZADI S.P.A.
    Inventors: Marco CODELUPPI, Lorenzo IOTTI