Patents by Inventor Colm Ronan

Colm Ronan 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).

  • Output stage interface circuit for outputting digital data onto a data bus, and a method for operating an output stage interface circuit
    Publication number: 20070159219
    Abstract: An output stage interface circuit (50) implemented on a P-substrate comprises a first substrate diffusion isolated main NMOS transistor (MN1) coupling a data output terminal (5) to a first rail (2) which is held at ground, and a second main PMOS transistor MP2 coupling the data output terminal (5) to a second rail (3) to which the power supply voltage VDD is applied. First and second data control signals on first and second data control lines (8) and (9) through first and second primary and secondary buffer circuits (11, 14, 12, 15) selectively operate the first main transistor MN1 and the second main transistor MP2 for determining the logic high and low states of the data output terminal (5).
    Type: Application
    Filed: October 27, 2006
    Publication date: July 12, 2007
    Applicant: Analog Devices, Inc.
    Inventors: Colm Ronan, John Twomey, Brian Moane, Liam White