Patents by Inventor Fabio PITTALA

Fabio PITTALA 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).

  • Class of symbol constellations for data transmission
    Patent number: 11658860
    Abstract: A transmitting device configured to obtain a message to be transmitted; map the obtained message onto a two-dimensional 2n-symbol constellation to obtain a sequence of discrete constellation symbols, where n is an odd number not less than 3. A receiving device configured to receive a sequence of noisy discrete constellation symbols; demap the sequence of noisy discrete constellation symbols to output data using a two-dimensional 2n-symbol constellation, where n is an odd number not less than 3.
    Type: Grant
    Filed: August 10, 2021
    Date of Patent: May 23, 2023
    Assignee: HUAWEI TECHNOLOGIES CO., LTD.
    Inventors: Stefano Calabro, Maximilian Schaedler, Fabio Pittala, Maxim Kuschnerov
  • Equalizing device for compensating rapid state of polarization changes of an optical signal
    Patent number: 11502754
    Abstract: The invention presents an equalizing device, a corresponding method and an optical signal with a frame structure for enabling the method. The equalizing device includes a first 2×2 MIMO equalizer configured to perform a first equalization on the digital signal, supported by a 2×2 MIMO channel estimation of the channel based on the digital signal. Further, the device includes a second 2×2 MIMO equalizer, arranged after the first equalizer and configured to perform a second equalization on the digital signal, supported by a State of Polarization (SOP) estimation of the optical signal based on the digital signal.
    Type: Grant
    Filed: March 11, 2021
    Date of Patent: November 15, 2022
    Assignee: Huawei Technologies Co., Ltd.
    Inventors: Fabio Pittala, Maxim Kuschnerov
  • Class of Symbol Constellations for Data Transmission
    Publication number: 20210367828
    Abstract: A transmitting device configured to obtain a message to be transmitted; map the obtained message onto a two-dimensional 2n-symbol constellation to obtain a sequence of discrete constellation symbols, where n is an odd number not less than 3. A receiving device configured to receive a sequence of noisy discrete constellation symbols; demap the sequence of noisy discrete constellation symbols to output data using a two-dimensional 2n-symbol constellation, where n is an odd number not less than 3.
    Type: Application
    Filed: August 10, 2021
    Publication date: November 25, 2021
    Inventors: Stefano Calabro, Maximilian Schaedler, Fabio Pittala, Maxim Kuschnerov
  • EQUALIZING DEVICE FOR COMPENSATING RAPID STATE OF POLARIZATION CHANGES OF AN OPTICAL SIGNAL
    Publication number: 20210203416
    Abstract: The invention presents an equalizing device, a corresponding method and an optical signal with a frame structure for enabling the method. The equalizing device includes a first 2×2 MIMO equalizer configured to perform a first equalization on the digital signal, supported by a 2×2 MIMO channel estimation of the channel based on the digital signal. Further, the device includes a second 2×2 MIMO equalizer, arranged after the first equalizer and configured to perform a second equalization on the digital signal, supported by a State of Polarization (SOP) estimation of the optical signal based on the digital signal.
    Type: Application
    Filed: March 11, 2021
    Publication date: July 1, 2021
    Inventors: Fabio PITTALA, Maxim KUSCHNEROV, Colja SCHUBERT, Robert ELSCHNER, Carsten SCHMIDT-LANGHORST