Patents by Inventor André Roullet

André Roullet 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).

  • Frequency divider with variable modulo
    Patent number: 6282255
    Abstract: The field is that of variable-modulo frequency dividers. To obtain a fast variable-modulo divider over a wide operating range the idea of the invention is to use twin flip-flops (1, 2; 3, 4; 5, 6; 7, 8) for the feedbacks. The benefit of this configuration is that it avoids the use of decoding gates between the flip-flops this increasing the propagation times of the feedback signals.
    Type: Grant
    Filed: April 3, 2000
    Date of Patent: August 28, 2001
    Assignee: Thomson-CSF
    Inventors: Jean-Pierre La Rosa, André Roullet