Patents by Inventor Alan Christopher Simmonds

Alan Christopher Simmonds 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).

  • Technique for glitchless switching of asynchronous clocks
    Patent number: 6806755
    Abstract: A technique for glitchless switching among different frequency input clocks in a circuit includes monitoring each of the clocks and determining when the relative phases of the respective clocks are within a predetermined maximum of phase difference. Once the relative phases of the respective clocks are within an acceptable range, the system switches from one clock to another.
    Type: Grant
    Filed: April 10, 2003
    Date of Patent: October 19, 2004
    Assignee: Quantum 3D
    Inventor: Alan Christopher Simmonds