Patents by Inventor Mohammad K. Zaman

Mohammad K. Zaman 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: 4545077
    Abstract: An electrical multiplex data bus is operatively coupled to an optical multiplex data bus by means of a novel electro-optical converter arrangement to form a hybrid data transmission system in which the transition from the optical data bus to the electrical data bus or vice versa is transparent to the individual terminals and controllers connected thereto. The data on the electrical bus is encoded in a biphase Manchester II code. Within the optical portion of the system, the data is represented by three different levels of flux within the optical fiber transmission line. Since flux is a measure of the intensity of the light, it will never be less than zero; accordingly, the three flux levels may be "zero", an intermediate value "L", and a maximum value "H".
    Type: Grant
    Filed: October 29, 1982
    Date of Patent: October 1, 1985
    Assignee: Lockheed Corporation
    Inventors: Thaddeus R. Drapala, Mohammad K. Zaman
  • Patent number: 4161650
    Abstract: A self-powered fiber optic interconnect system in which electrical output from data transmitting equipment is converted in a transmitter unit to optical signals in a fiber optic cable for transmission to a receiver unit for reconversion to electrical signals for data receiving equipment and a power source separate from the transmitting and receiving equipment so that the interconnect system can be completely interchangeable with an electrical copper wire interconnect system. When the data transmitting equipment is a computer with parallel data output, the transmitter unit converts the parallel output to serial data output for transmission to the receiver unit over a single fiber optic cable and the receiver unit reconverts the output to parallel data for the data receiving equipment.
    Type: Grant
    Filed: April 6, 1978
    Date of Patent: July 17, 1979
    Assignee: Lockheed Aircraft Corporation
    Inventors: Kenneth O. Caouette, George H. Fortescue, Mohammad K. Zaman, Donald J. Oda