Patents by Inventor Daniel L. Halperin

Daniel L. Halperin 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).

  • Scan based multiple ring oscillator structure for on-chip speed measurement
    Publication number: 20020129293
    Abstract: The present invention bundles four ring oscillators, a 20-bit ripple counter and the necessary control logic needed to implement a JTAG scan based interface. The present system can be located on every die, so that each location can be individually tested. It communicates with the outside world through a standard JTAG interface. It is accessible at wafer, package, and system test which allows for several methods of correlating the oscillator speed to the speed of a part in the actual system.
    Type: Application
    Filed: March 7, 2001
    Publication date: September 12, 2002
    Inventors: John F. Hutton, William A. Hudson, Daniel L. Halperin, Daniel W. Krueger, Jack T. Lavier, Mark D. Musgrove