Patents by Inventor Peter L. Dunn

Peter L. Dunn 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).

  • Rotary apparatus having code track with pseudo-random binary digit sequence for indicating rotational position
    Patent number: 4604725
    Abstract: A code track on a rotable member (e.g., a disc) defines a pseudo-random sequence of binary digits consisting of ones and noughts. The pseudo-random sequence extends continuously around the rotatable member and includes a given number of n consecutive noughts. The binary digits of the sequence are arranged so that each group of n adjacent digits is different from each other group of n adjacent in the pseudo-random sequence. A reading mechanism is operatively positioned relative to the code track for reading n consecutive digits of the pseudo-random sequence, wherein each n consecutive digits of the pseudo-random sequence define a position of the rotatable member.
    Type: Grant
    Filed: May 17, 1983
    Date of Patent: August 5, 1986
    Assignee: The Marconi Company Limited
    Inventors: George G. Davies, Stuart M. McGlade, Peter L. Dunn