Patents by Inventor Charles W. Tillinghast

Charles W. Tillinghast 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: 5278796
    Abstract: A temperature sensing circuit allows a DRAM array to use less power than would normally be possible due to the reduced refresh rate based on the temperature of the DRAM array. The temperature circuit removes the refresh guardbanding on the DRAMS. Instead of refreshing a 1 megabyte DRAM every 8 ms, refreshing the DRAMs every 128 ms is possible, depending on the temperature of the DRAM array.
    Type: Grant
    Filed: April 12, 1991
    Date of Patent: January 11, 1994
    Assignee: Micron Technology, Inc.
    Inventors: Charles W. Tillinghast, Michael S. Cohen, Thomas W. Voshell
  • Patent number: 5276843
    Abstract: A dynamic random access memory (DRAM) array is configured to appear to a host computer as a static random access memory (SRAM) array. This allows the use of a component which is functionally equivalent to an SRAM array, but which is less costly and which provides more memory in the same unit area. A temperature sensing circuit allows the DRAM array to use less power than would normally be possible by using a reduced refresh rate based on the temperature of the DRAM array. For example, instead of refreshing a 1 megabyte DRAM every 8 ms, refreshing the DRAM every 128 ms is possible, depending on the temperature of the DRAM array.
    Type: Grant
    Filed: April 12, 1991
    Date of Patent: January 4, 1994
    Assignee: Micron Technology, Inc.
    Inventors: Charles W. Tillinghast, Michael S. Cohen, Thomas W. Voshell