Patents by Inventor Kenneth C. Scheuer

Kenneth C. Scheuer 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).

  • Data processor having an output terminal with selectable output impedances
    Patent number: 5294845
    Abstract: A data processor has at least one output terminal which a user of the data processor can vary the output impedance thereof depending upon the application environment of the data processor. A first output buffer of an output buffer stage has a predetermined output impedance and is coupled between an input of the stage and the output terminal. The first output buffer provides a first output terminal impedance. A second output buffer having a lower output impedance than the first output buffer may be selectively coupled in parallel to the first output buffer to reduce the output impedance of the output terminal. The coupling of the output buffers is controlled by a user of the data processor who provides a control input for selecting one of a plurality of predetermined output terminal impedance values.
    Type: Grant
    Filed: August 17, 1992
    Date of Patent: March 15, 1994
    Assignee: Motorola, Inc.
    Inventors: Steven C. McMahan, Kenneth C. Scheuer, William B. Ledbetter, Jr., Michael G. Gallup, James G. Gay
  • Data processor having an output terminal with selectable output impedances
    Patent number: 5162672
    Abstract: A data processor has at least one output terminal which a user of the data processor can vary the output impedance thereof depending upon the application environment of the data processor. A first output buffer of an output buffer stage has a predetermined output impedance and is coupled between an input of the stage and the output terminal. The first output buffer provides a first output terminal impedance. A second output buffer having a lower output impedance then the first output buffer may be selectively coupled in parallel to the first output buffer to reduce the output impedance of the output terminal. The coupling of the output buffers is controlled by a user of the data processor who provides a control input for selecting one of a plurality of predetermined output terminal impedance values.
    Type: Grant
    Filed: December 24, 1990
    Date of Patent: November 10, 1992
    Assignee: Motorola, Inc.
    Inventors: Steven C. McMahan, Kenneth C. Scheuer, William B. Ledbetter, Jr., Michael G. Gallup, James G. Gay