Patents by Inventor Kenneth M. Hipp

Kenneth M. Hipp 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).

  • Method and apparatus to conceal RF interference in AM radio reception caused by a switch mode power supply
    Patent number: 5519889
    Abstract: A method and apparatus is disclosed in which a transformer which has at least one DC output and one input, and a precision timer which generates a control signal having a frequency within a predetermined range of an integer multiple of the carrier frequency spacing. A switch which is connected to the transformer controls the input of the transformer. A controller which is electrically connected to said DC output, said precision timer and the switch pulse width modulates said switch means at an integer multiple of the carrier frequency spacing whereby the DC output of the transformer is regulated.
    Type: Grant
    Filed: February 4, 1994
    Date of Patent: May 21, 1996
    Assignee: Ford Motor Company
    Inventor: Kenneth M. Hipp