Patents by Inventor Raffaele Izzo

Raffaele Izzo 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 a relative digital circuit of feedback regulation of the duty cycle of a clock signal
    Patent number: 6326827
    Abstract: A method for regulating the duty cycle of an input clock signal includes producing a second clock signal using a first adjustable delay circuit for varying the duty cycle. The second clock signal is applied to first and second circuits for respectively increasing and decreasing the duty cycle of the second clock signal. The method further includes monitoring if the first circuitry increases the duty cycle or if the second circuitry reducing the duty cycle saturates first. The duty cycle introduced by the first adjustable delay circuit is modified until saturation of the first and second circuits occur at substantially the same time.
    Type: Grant
    Filed: September 1, 2000
    Date of Patent: December 4, 2001
    Assignee: STMicroelectronics S.r.l.
    Inventors: Francesco Cretti, Nuccio Villa, Raffaele Izzo