Patents by Inventor Henok Tafase

Henok Tafase 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).

  • System for selectively combining satellite signals sent to a user through an optical fiber
    Patent number: 7509049
    Abstract: A method and apparatus are provided for transferring a plurality of satellite signals through an optical communication network. The method includes the steps of selecting a frequency of a local oscillator signal within a guardband between a left polarization signal and a right polarization signal of a first satellite signal of the plurality of satellite signals, frequency shifting the first satellite signal upwards in frequency by the selected frequency. The method further includes the steps of combining the frequency shifted satellite signal with a second satellite signal of the plurality of satellite signals and modulating a optical carrier with the combined signals, transferring the modulated optical carrier to a receiver through an optical fiber and decoding the first and second satellite signals within the receiver.
    Type: Grant
    Filed: January 24, 2005
    Date of Patent: March 24, 2009
    Assignee: Emcore Corporation
    Inventors: Xiaoming Lou, Henok Tafase, Thomas Schrans, Frank Berardi, Hermie De Guzman
  • System for selectively combining satellite signals sent to a user through an optical fiber
    Publication number: 20060193635
    Abstract: A method and apparatus are provided for transferring a plurality of satellite signals through an optical communication network. The method includes the steps of selecting a frequency of a local oscillator signal within a guardband between a left polarization signal and a right polarization signal of a first satellite signal of the plurality of satellite signals, frequency shifting the first satellite signal upwards in frequency by the selected frequency. The method further includes the steps of combining the frequency shifted satellite signal with a second satellite signal of the plurality of satellite signals and modulating a optical carrier with the combined signals, transferring the modulated optical carrier to a receiver through an optical fiber and decoding the first and second satellite signals within the receiver.
    Type: Application
    Filed: January 24, 2005
    Publication date: August 31, 2006
    Inventors: Xiaoming Lou, Henok Tafase, Thomas Schrans, Frank Berardi, Hermie Guzman