Patents by Inventor R. Anders Johnson

R. Anders Johnson 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: 5646903
    Abstract: A DRAM memory having shared read/write lines. The DRAM memory is comprised of an array of 3T memory cells. Data is digitally stored in the form of capacitors that are either charged or discharged. Horizontal data lines are used to convey data bits to be stored in the array of memory cells. Vertical read/write lines are used to perform both read and write functions. Activating a single read/write line causes a bit of data from a memory cell to be placed onto a corresponding data line. Simultaneously, an inverted copy of that data bit is stored in an adjacent memory cell. Hence, instead of having a separate read line and a separate word line for each memory cell, the present invention has a dual function read/write word line.
    Type: Grant
    Filed: March 6, 1996
    Date of Patent: July 8, 1997
    Assignee: Xilinx, Inc.
    Inventor: R. Anders Johnson