Patents by Inventor Jeremy H. Smith

Jeremy H. Smith 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).

  • Patent number: 6157232
    Abstract: A local clock system for generating a local clock signal whose frequency and phase are synchronized to the frequency and phase of an external input clock reference signal, wherein the output local clock signal is a non-integer multiple of the input clock reference signal. A numerically controlled generator generates the clock output signal, and the frequency and phase thereof are controlled by a digital tuning word input thereto. An input frequency divider divides the input clock reference signal by a first constant k.sub.11 or a second constant k.sub.22, and an output frequency divider for dividing the output signal by a first constant k.sub.11 or a second constant k.sub.21. A relay-phase detector receives output signals from the input frequency divider and the output frequency divider, and produces a 0 or a 1 output, which controls the input frequency divider to divide by k.sub.12 or k.sub.22 and controls the output frequency divider to divide by k.sub.11 or k.sub.
    Type: Grant
    Filed: March 18, 1999
    Date of Patent: December 5, 2000
    Assignee: NEC Corporation
    Inventors: Steven E. Hossner, Brian F. Reilly, Jeremy H. Smith