Patents by Inventor Mark R. Testardi

Mark R. Testardi 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 and apparatus for non-intrusive bit error rate testing
    Patent number: 4920537
    Abstract: This invention comprises a method and apparatus for determining the bit error rate (BER) between two points of a digital communications circuit carrying an arbitrary data stream. Block check codes calculated at one point are compared with those calculated at the other. The block check codes are computed on blocks composed of samples of the data. The block size and sampling algorithm are chosen in such a way as to allow a statistically reliable BER result to be derived from the block check code miscompare information.
    Type: Grant
    Filed: July 5, 1988
    Date of Patent: April 24, 1990
    Inventors: Andrew S. Darling, Mark R. Testardi