Patents by Inventor Amar Ali

Amar Ali 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).

  • Patent number: 4726010
    Abstract: The invention relates to an optical communication system for transmitting subscriber-assigned information in both directions between a center (1) and a plurality of subscribers (3ato 3n), particularly to the subscriber loop of a broadband communication system. In a remote distribution facility which is of either distributed (FIG. 1) or lumped (FIG. 2) design, the optical waveguides (5ato 5n) of a group of subscribers living or working near each other are coupled to a common optical waveguide (4) (or to two common optical waveguides) connected to the center (1). Subscriber-assigned signals to be transmitted from the center to the subscribers are combined into an electric time-division-multiplex signal which is transmitted as an optical signal with a single wavelength (.lambda..sub.o) to the vicinity of the subscribers and distributed to the latter. From the electric time-division-multiplex signal, each of the subscribers takes only the signal intended for him.
    Type: Grant
    Filed: February 25, 1986
    Date of Patent: February 16, 1988
    Assignee: Standard Elektrik Lorenz AG
    Inventors: Amar Ali, Horst Ohnsorge