Patents by Inventor Assaf Ben-Amitai

Assaf Ben-Amitai 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).

  • Redundancy for dual optical ring concentrator
    Patent number: 7317681
    Abstract: A novel and useful mechanism for optical ring networks providing concentrator redundancy in the event of a failure of a concentrator. The nodes in a network are connected to dual concentrators to form bi-directional dual counter-rotating optical rings. The failure of one of the concentrators is detected and the internal connections of the surviving concentrator are reconfigured to form a single ring that provides an alternate communication path thus preventing the collapse of the ring. Reliability of optical rings is improved by enabling the ring to continue to function in the event of a concentrator failure.
    Type: Grant
    Filed: January 11, 2002
    Date of Patent: January 8, 2008
    Assignee: Cisco Systems O.I.A. (1988)Ltd.
    Inventors: Nir Ben-Dvora, Doron Oz, Roni Luxenberg, Assaf Ben-Amitai