Patents by Inventor Henrique Silva

Henrique Silva 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).

  • Failsafe optical splitter and method to isolate faults in a passive optical network
    Patent number: 8554080
    Abstract: An optical splitter for a passive optical network for telecommunication signal transmission with an optical line terminal includes a wavelength selective optical electrical converter, an AC/DC splitter, an energy reservoir and optical switches, where the splitter comprises also a data transmission processing module by which the optical switches can be controlled according to data signals transmitted from the optical line terminal.
    Type: Grant
    Filed: September 18, 2008
    Date of Patent: October 8, 2013
    Assignee: Nokia Siemens Networks OY
    Inventors: Marek Hajduczenia, Pedro Inacio, Paulo Miguel Monteiro, Silvia Pato, Henrique Silva
  • Two and three-stroke discovery process for 10G-EPONs
    Patent number: 8493982
    Abstract: The invention relates to a method to discover Optical Network Units (ONU) with different speed capabilities in an Ethernet Passive Optical Network (EPON) by an Optical Line Termination (OLT), where logical links in the network are identified by Logical Link IDs, and the OLT can transmit and receive data with 1 Gbit/s-speed (1 G) and 10 Gbit/s-speed (10 G), and the discovery process is handled in the OLT by a Multi Point Control Process (MPCP), which exchanges messages as Data Units (MPCPDU) with the ONUs. This is achieved by extending the standard MPCPDUs in a way, that backward compatability is assured.
    Type: Grant
    Filed: May 5, 2009
    Date of Patent: July 23, 2013
    Assignee: Adtran GmbH
    Inventors: Nuno Borges, Marek Hajduczenia, Paulo Miguel Monteiro, Henrique Silva
  • TWO AND THREE-STROKE DISCOVERY PROCESS FOR 10G-EPONS
    Publication number: 20110142444
    Abstract: The invention relates to a method to discover Optical Network Units (ONU) with different speed capabilities in an Ethernet Passive Optical Network (EPON) by an Optical Line Termination (OLT), where logical links in the network are identified by Logical Link IDs, and the OLT can transmit and receive data with 1 Gbit/s-speed (1 G) and 10 Gbit/s-speed (10 G), and the discovery process is handled in the OLT by a Multi Point Control Process (MPCP), which exchanges messages as Data Units (MPCPDU) with the ONUs. This is achieved by extending the standard MPCPDUs in a way, that backward compatability is assured.
    Type: Application
    Filed: May 5, 2009
    Publication date: June 16, 2011
    Applicant: Nokia Siemens Networks Oy
    Inventors: Nuno Borges, Marek Hajduczenia, Paulo Miguel Monteiro, Henrique Silva
  • FAILSAFE OPTICAL SPLITTER AND METHOD TO ISOLATE FAULTS IN A PASSIVE OPTICAL NETWORK
    Publication number: 20110069955
    Abstract: An optical splitter for a passive optical network for telecommunication signal transmission with an optical line terminal includes a wavelength selective optical electrical converter, an AC/DC splitter, an energy reservoir and optical switches, where the splitter comprises also a data transmission processing module by which the optical switches can be controlled according to data signals transmitted from the optical line terminal.
    Type: Application
    Filed: September 18, 2008
    Publication date: March 24, 2011
    Applicant: NOKIA SIEMENS NETWORKS OY
    Inventors: Marek Hajduczenia, Pedro Inacio, Paulo Miguel Monteiro, Silvia Pato, Henrique Silva