Patents by Inventor Predrag Dragovic

Predrag Dragovic 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).

  • Optical transmission system test apparatus
    Publication number: 20070009259
    Abstract: An OSNR reducer adds a prescribed noise spectrum at a prescribed power level to an input optical signal. The OSNR reducer employs at least one optical amplifier to generate the noise and an optical combiner to combine the input optical signal with the noise. Optionally, the OSNR reducer may have a tunable filter that selects a desired wavelength range of the noise and a controller that varies the power level of the noise generated.
    Type: Application
    Filed: July 6, 2005
    Publication date: January 11, 2007
    Inventors: Predrag Dragovic, Dat Ngo