Patents by Inventor Luis Maria Arzubi

Luis Maria Arzubi 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).

  • Semiconductor memory read/write access circuit and method
    Patent number: 4112512
    Abstract: A high performance semiconductor memory read/write data access circuit including a sense amplifier directly coupled to a pair of bit lines is provided with a pair of bit switching devices to enable data communication external to the memory. Control potentials and timing of switching signals are provided in such a manner that only one of the bit switches becomes conductive during reading and writing access to the memory.
    Type: Grant
    Filed: December 22, 1977
    Date of Patent: September 5, 1978
    Assignee: International Business Machines Corporation
    Inventors: Luis Maria Arzubi, Joerg Gschwendtner, Robert Schnadt
  • Means for refreshing AC stable storage cells
    Patent number: 4032904
    Abstract: A refresh circuit for AC stable storage cells utilizing an asymmetric a stable power source for controlling an auxiliary shift register which in turn controls the refreshing shift register. The outputs of the refreshing shift register are coupled to the gate electrodes of gating devices coupled to the memory word line.
    Type: Grant
    Filed: July 9, 1975
    Date of Patent: June 28, 1977
    Assignee: International Business Machines Corporation
    Inventors: Kevin Lee Anderson, Luis Maria Arzubi