Patents by Inventor Michael Armand Roberge

Michael Armand Roberge 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 apparatus for DLL lock latency detection
    Patent number: 6859413
    Abstract: Disclosed herein are a method and structure, in an integrated circuit having at least one delay locked loop circuit (DLL), for determining a Lock Latency value of a DLL output clock signal. The disclosed method includes temporarily disabling a first clock signal in response to the DLL doing at least one of approaching and acquiring lock; and then thereafter determining a Lock Latency value in response to examining a DLL output clock signal generated in response to the first clock signal.
    Type: Grant
    Filed: September 27, 2002
    Date of Patent: February 22, 2005
    Assignee: International Business Machines Corporation
    Inventors: John T. Phan, Michael Armand Roberge
  • Method and apparatus for DLL lock latency detection
    Publication number: 20040062137
    Abstract: Disclosed herein are a method and structure, in an integrated circuit having at least one delay locked loop circuit (DLL), for determining a Lock Latency value of a DLL output clock signal. The disclosed method includes temporarily disabling a first clock signal in response to the DLL doing at least one of approaching and acquiring lock; and then thereafter determining a Lock Latency value in response to examining a DLL output clock signal generated in response to the first clock signal.
    Type: Application
    Filed: September 27, 2002
    Publication date: April 1, 2004
    Applicant: INTERNATIONAL BUSINESS MACHINES CORPORATION
    Inventors: John T. Phan, Michael Armand Roberge