Patents by Inventor Ashley A. Truscott

Ashley A. Truscott 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).

  • Method for calibrating and operating an uncooled avalanche photodiode optical receiver
    Patent number: 6313459
    Abstract: The present invention comprises an operational algorithm, and calibration process, for an avalanche photodiode (ADP) receiver which takes into account an APD behavioral model. In-situ optical and electrical measurements (calibration) of the APD are performed to determine key constants for use in the model. Knowledge of these constants allows for optimum operation of the APD over a wide range of input optical power. The operational algorithm also gives an estimate of input optical power over a wide range of ambient temperatures.
    Type: Grant
    Filed: May 31, 2000
    Date of Patent: November 6, 2001
    Assignee: Nortel Networks Limited
    Inventors: Ronald D. Hoffe, Collin G. Kelly, Marc A. Nadeau, Ping W. Wan, Ashley A. Truscott