Patents by Inventor Mark A. Effinger

Mark A. Effinger 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).

  • Methods and apparatus for generating light patterns responsive to audio frequency input signals
    Patent number: 4887197
    Abstract: Methods and apparatus are disclosed for reflecting a laser beam so that it traverses a path on a display surface defining a visible display pattern responsive to an audio frequency input signal. The input signal is provided to a speaker, and the laser beam reflects off a front surface mirror, mounted onto the speaker so that the mirror vibrates responsive to the input signal.
    Type: Grant
    Filed: April 29, 1988
    Date of Patent: December 12, 1989
    Assignee: O'Ryan Industries
    Inventor: Mark A. Effinger