Patents by Inventor Curtis Preuss

Curtis Preuss 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).

  • DUAL MODE ANALOG DIFFERENTIAL AND CMOS LOGIC CIRCUIT
    Publication number: 20050110521
    Abstract: A dual mode, analog differential and complementary metal oxide semiconductor (CMOS) logic circuit is provided. The circuit includes a differential input for receiving a differential input signal. A switch pair is coupled to the differential input. A pair of load resistors coupled to the switch pair defines a differential output for providing a differential output signal. A current source is coupled to the switch pair. A control input receives a control signal and control circuitry coupled to the control input disable the current source to select a CMOS testing mode responsive to the control signal being activated.
    Type: Application
    Filed: November 20, 2003
    Publication date: May 26, 2005
    Applicant: INTERNATIONAL BUSINESS MACHINES CORPORATION
    Inventors: Delbert Cecchi, Michael Launsbach, Curtis Preuss, David Siljenberg