Patents by Inventor Barry S. Cornell

Barry S. Cornell 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).

  • Column-current multiplexing driver circuit for high density proms
    Patent number: 4722822
    Abstract: Current switches are used to control current into the columns during READ operations of a PROM. The circuit provides one such switch for each of the columns of the PROM and makes possible the use of a single current source which is connected to each of the switches but supplies current only to the column of the PROM that is currently selected for reading. A high voltage pre-bias is applied to the collectors of the NPN transistors used as current switches such that turn-on speed is improved because the collector parasitic capacitances are pre-charged to near the supply potential.
    Type: Grant
    Filed: November 27, 1985
    Date of Patent: February 2, 1988
    Assignee: Advanced Micro Devices, Inc.
    Inventors: Phi Thai, Barry S. Cornell
  • IC input circuitry programmable for realizing multiple functions from a single input
    Patent number: 4721868
    Abstract: A single, programmable, multifunctional input circuit scheme for integrated circuit chips is disclosed. An input pin is provided with selectable input logic circuit blocks, each capable of providing an input signal to another circuit in the integrated circuit system architecture. The user of the chip is provided with means for programming said pin to select one of said logic circuit blocks, whereby each said pin has multifunction capability.
    Type: Grant
    Filed: September 23, 1986
    Date of Patent: January 26, 1988
    Assignee: Advanced Micro Devices, Inc.
    Inventors: Barry S. Cornell, M. Clifford Biggers