Patents by Inventor Robert L. Marzari

Robert L. Marzari 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).

  • Optical fiber continuity testing with pulsating optical test signal
    Patent number: 4800265
    Abstract: Apparatus for receiving an optical test signal, from a transmitter pulsating at a selected repetition rate, comprising, a portable voltage source, a PIN diode for sampling the test signal and generating a voltage pulsating at said repetition rate and with an amplitude proportionate to the amplitude of the sampled test signal, an indicator for indicating the amplitude of the sampled test signal, amplifying means connected between the indicator and the PIN diode, a filter circuit between the PIN diode and the amplifying means for reacting to the transitions in amplitude of said voltage from the PIN diode.
    Type: Grant
    Filed: March 21, 1986
    Date of Patent: January 24, 1989
    Assignee: AMP Incorporated
    Inventors: Robert L. Marzari, Robert K. Southard, William J. Stape
  • Optical continuity testing apparatus with pulsating transmitter
    Patent number: 4797556
    Abstract: A receiver for receiving an optical test signal from an optical transmitter pulsating at a selected repetition rate is disclosed. The receiver comprises an optical detector for sampling the test signal and generating a voltage signal pulsating at the repetition rate and with an amplitude proportional to the amplitude of the sampled test signal. The receiver also includes an indicator for indicating the amplitude of the test signal relative to the amplitude of a calibration signal.
    Type: Grant
    Filed: October 7, 1987
    Date of Patent: January 10, 1989
    Assignee: AMP Incorporated
    Inventors: Robert L. Marzari, Robert K. Southard, William J. Stape
  • Optical continuity testing transmitter
    Patent number: D303359
    Type: Grant
    Filed: September 2, 1986
    Date of Patent: September 12, 1989
    Assignee: AMP Incorporated
    Inventors: Max J. Kessler, Robert L. Marzari, Meyric K. Rogers, Robert K. Southard