Patents by Inventor Carlo Mariotti

Carlo Mariotti 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).

  • Patent number: 8867924
    Abstract: A method is provided to lower the overall power consumption of small form-factor pluggable (SFP) transceivers. The method includes receiving an indication to operate the SFP transceiver in a low power mode, and setting the SFP transceiver to a low power mode in response to the indication by at least switching off a thermal electric cooler (TEC) that controls a temperature of a laser diode of the SFP transceiver. The proposed method may be implemented whenever a reach is not more than a predetermined distance, for example, 65 kilometers. At such reduced distances, the TEC of the SFP transceiver can be switched off while still guaranteeing link functionality. The instant low power mode has the benefit of reducing the power consumption of the SFP transceiver so that, for example, host platforms with lower power delivery budgets can support the SFP transceiver for at least some applications.
    Type: Grant
    Filed: September 30, 2010
    Date of Patent: October 21, 2014
    Assignee: Cisco Technology, Inc.
    Inventors: Carlo Mariotti, Damiano Rossetti, Carlo Tosetti, Federico Fontanella
  • Patent number: 8606112
    Abstract: An apparatus for connecting a host device to an optical network, and to provide a bi-directional electro-optic interface to the host device. The apparatus comprises at least one optical network port for connection to the optical network, and a transceiver circuit configured to generate optical transmit signals for transmission via the at least one network port. The transceiver circuit is further configured to process optical receive signals received via the network port. The apparatus further comprises an optical connector configured to provide bi-directional transfer of optical data signals with the host device.
    Type: Grant
    Filed: July 21, 2011
    Date of Patent: December 10, 2013
    Assignee: Cisco Technology, Inc.
    Inventors: Carlo Tosetti, Damiano Rossetti, Carlo Mariotti, Federico Fontanella
  • Publication number: 20130022359
    Abstract: An apparatus for connecting a host device to an optical network, and to provide a bi-directional electro-optic interface to the host device. The apparatus comprises at least one optical network port for connection to the optical network, and a transceiver circuit configured to generate optical transmit signals for transmission via the at least one network port. The transceiver circuit is further configured to process optical receive signals received via the network port. The apparatus further comprises an optical connector configured to provide bi-directional transfer of optical data signals with the host device.
    Type: Application
    Filed: July 21, 2011
    Publication date: January 24, 2013
    Applicant: CISCO TECHNOLOGY, INC.
    Inventors: Carlo Tosetti, Damiano Rossetti, Carlo Mariotti, Federico Fontanella
  • Publication number: 20120082462
    Abstract: A method is provided to lower the overall power consumption of small form-factor pluggable (SFP) transceivers. The method includes receiving an indication to operate the SFP transceiver in a low power mode, and setting the SFP transceiver to a low power mode in response to the indication by at least switching off a thermal electric cooler (TEC) that controls a temperature of a laser diode of the SFP transceiver. The proposed method may be implemented whenever a reach is not more than a predetermined distance, for example, 65 kilometers. At such reduced distances, the TEC of the SFP transceiver can be switched off while still guaranteeing link functionality. The instant low power mode has the benefit of reducing the power consumption of the SFP transceiver so that, for example, host platforms with lower power delivery budgets can support the SFP transceiver for at least some applications.
    Type: Application
    Filed: September 30, 2010
    Publication date: April 5, 2012
    Applicant: CISCO TECHNOLOGY, INC.
    Inventors: Carlo Mariotti, Damiano Rossetti, Carlo Tosetti, Federico Fontanella
  • Patent number: 8078053
    Abstract: Various example embodiments are disclosed. According to one example embodiment, a method may include transmitting a semiconductor laser-generated optical signal from a first end of a multi-mode fiber (MMF) optical link to a second end of the link. The optical signal may have a reference bandwidth at the first end of the link. The method may further include converting the optical signal to an electrical signal. The method may further include analyzing the electrical signal with an electronic dispersion compensator to determine an effective modal bandwidth (EMBW) of the received optical signal. The method may further include analyzing the electrical signal with an electronic dispersion compensator to determine an intersymbol interference (ISI) penalty of the optical link.
    Type: Grant
    Filed: September 19, 2008
    Date of Patent: December 13, 2011
    Assignee: Cisco Technology, Inc.
    Inventors: Marco Mazzini, Carlo Tosetti, Carlo Mariotti