Patents by Inventor Mark C. Fleming

Mark C. Fleming 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).

  • Music speech filter
    Patent number: 4441203
    Abstract: A music/speech filter is provided for automatically determining whether an audio signal is music or speech by obtaining a relative measure of the energy in a selective frequency range and, from this determination, controlling the passage or path of the audio signal. The filter can be attached to a radio receiver to selectively pass either music or speech at the option of the user.
    Type: Grant
    Filed: March 4, 1982
    Date of Patent: April 3, 1984
    Inventor: Mark C. Fleming