Patents by Inventor Davide Orifamma

Davide Orifamma 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).

  • Jitter insensitive sigma-delta modulator
    Patent number: 8169352
    Abstract: A sigma-delta modulator for forming a digital output signal representative of a voltage level of an input signal, the sigma delta modulator having a node arranged to receive a current flow that is representative of the voltage level of the input signal and on whose voltage the digital output signal is dependent, the sigma-delta modulator comprising a plurality of capacitive elements for smoothing the current flow, each capacitive element being connected at one end to the node and at its other end to a respective switch unit and a plurality of switch units, each switch unit being arranged to connect the respective one of the capacitive elements to either a first voltage level or a second voltage level in dependence on the voltage at the node so as to provide feedback that affects the voltage at the node.
    Type: Grant
    Filed: August 7, 2008
    Date of Patent: May 1, 2012
    Assignee: Cambridge Silicon Radio Limited
    Inventors: Nicolas Sornin, Davide Orifamma
  • Jitter Insensitive Sigma-Delta Modulator
    Publication number: 20100295715
    Abstract: A sigma-delta modulator for forming a digital output signal representative of a voltage level of an input signal, the sigma delta modulator having a node arranged to receive a current flow that is representative of the voltage level of the input signal and on whose voltage the digital output signal is dependent, the sigma-delta modulator comprising a plurality of capacitive elements for smoothing the current flow, each capacitive element being connected at one end to the node and at its other end to a respective switch unit and a plurality of switch units, each switch unit being arranged to connect the respective one of the capacitive elements to either a first voltage level or a second voltage level in dependence on the voltage at the node so as to provide feedback that affects the voltage at the node.
    Type: Application
    Filed: August 7, 2008
    Publication date: November 25, 2010
    Applicant: CAMBRIDGE SILICON RADIO LIMITED
    Inventors: Nicolas Sornin, Davide Orifamma