Patents Represented by Attorney Randick O'Dea, et al.
  • Patent number: 7272321
    Abstract: A passive optical network. The optical network has an optical fiber ring with ends terminating at an optical line terminal. The optical line terminal transmits signals through the fiber ring to optical network units passively connected to the fiber ring. The optical network units receive signals from the optical line terminal through the fiber ring. In one embodiment, the optical line terminal transmits redundant signals in opposite directions through the fiber ring and the optical network units receive the redundant signals from opposite directions through the fiber ring. In another embodiment, the optical network units receive TDM signals from and transmit TDMA signals to the optical line terminal through a fiber line. A first WDM coupler passively connected to the fiber line multiplexes an overlay signal with at least one of the TDM signals and the TDMA signals for transmission through the fiber line. The overlay signal has a wavelength different than the signals with which it is multiplexed.
    Type: Grant
    Filed: May 10, 2000
    Date of Patent: September 18, 2007
    Assignee: Alloptic, Inc.
    Inventors: Jer-Chen Kuo, Gerald A. Pesavento
  • Patent number: D560741
    Type: Grant
    Filed: February 1, 2007
    Date of Patent: January 29, 2008
    Inventor: Patrick Bernart
  • Patent number: D560742
    Type: Grant
    Filed: February 1, 2007
    Date of Patent: January 29, 2008
    Inventor: Patrick Bernart
  • Patent number: D560743
    Type: Grant
    Filed: February 1, 2007
    Date of Patent: January 29, 2008
    Inventor: Patrick Bernart
  • Patent number: D575859
    Type: Grant
    Filed: August 29, 2007
    Date of Patent: August 26, 2008
    Inventor: Thomas John Scimone