Patents by Inventor Ysakov Stein

Ysakov Stein 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 and method for extending the range of xDSL services
    Patent number: 6829246
    Abstract: A system and method for extending the distance that xDSL services are able to be provided to subscribers. A DSLAM located at a Central Office is connected to a general-purpose network, such as the Internet. The DSLAM is additionally connected to a first fiber optic transceiver. The first fiber optic transceiver is connected via a fiber optic link to a second fiber optic transceiver located proximate to the subscribers' premises, preferably in a street cabinet. Each subscriber premise's equipment is connected to the broadband transceiver via subscriber lines. Electrical signals to be transmitted between the Central Office and the subscribers' premises are utilized to form a frequency division multiplexed signal. The frequency division multiplexed signal is used to modulate a light subcarrier for transmission across the fiber optic link.
    Type: Grant
    Filed: March 23, 2001
    Date of Patent: December 7, 2004
    Assignee: Rad Data Communications Ltd.
    Inventors: Hugo Silberman, Tsvi (Henri) Eitane, Ysakov Stein