Patents by Inventor Richard Thomas Dennison

Richard Thomas Dennison 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).

  • Split memory array sharing same sensing and bit decode circuitry
    Patent number: 3983544
    Abstract: A split random access memory array is integrated with a read only storage array and shares the same sense and bit decode circuitry. Each bit line of the integrated array is provided with an isolation switch between the random access and read only portions. The switch conducts when reading the read only portion but does not conduct (isolates) when writing or reading the random access portion. The isolation switch also permits the initialization of the shared differential sensing latch and facilitates the rapid writing and reading of the random access portion by removing the bit line loading due to the read only portion on such occasions.
    Type: Grant
    Filed: August 25, 1975
    Date of Patent: September 28, 1976
    Assignee: International Business Machines Corporation
    Inventors: Richard Thomas Dennison, Leo Boyes Freeman, Helen Janet Kelly, Peter Tsung-Shih Liu