Patents by Inventor Andrew Evan Stevens

Andrew Evan Stevens 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).

  • Integrate-and-dump receiver for fiber optic transmission
    Patent number: 5773815
    Abstract: A highly sensitive optical receiver where one terminal of the photodiode of the receiver is connected to a negatively biased amplifier while the other terminal of photodetector is connected to a positively biased amplifier, where such connections automatically bias the photodiode and use the current from both terminals (anode and cathode) of the photodiode. This invention also provides an optical receiver which has a DC cancellation circuit to eliminate the biasing voltages in the final output signal.
    Type: Grant
    Filed: April 29, 1994
    Date of Patent: June 30, 1998
    Assignee: International Business Machines Corporation
    Inventor: Andrew Evan Stevens