Patents by Inventor Marcos Brandão Sanches

Marcos Brandão Sanches 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).

  • Bidirectional multichannel optical telecommunication system
    Patent number: 6668139
    Abstract: An amplifier including a first input for a first at least two input signals having mutually distinct wavelengths, a first output for a first at least two output signals, the first at least two output signals having said mutually distinct wavelengths, a first circulator including an input port coupled to the first input, an output port coupled to the first output, and an intermediate port coupled to a first end of a selective reflection circuit, and, a second circulator including an intermediate port coupled to a second end of the selective reflection circuit, an output port coupled to a first selective splitter, and an input port coupled to a second selective splitter, wherein the first selective splitter and the second selective splitter are centered about a first selected wavelength amongst the mutually distinct wavelengths.
    Type: Grant
    Filed: July 2, 2002
    Date of Patent: December 23, 2003
    Assignee: Corning O.T.I.
    Inventors: Fausto Meli, Marcos Brandão Sanches