Patents by Inventor Fred James

Fred James 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 for substituting a higher quality audio soundtrack for a lesser quality audio soundtrack during reproduction of the lesser quality audio soundtrack and a corresponding visual picture
    Patent number: 4758908
    Abstract: For use with master reproducing apparatus which reproduces a visual signal and a corresponding first audio signal, apparatus for substituting a second higher quality audio signal reproduced by slave reproducing apparatus for the first audio signal during reproduction of the visual signal and the first audio signal, includes a synchronizer detector for detecting the amount of synchronization between the first and second audio signals in response to the first and second audio signals and for producing an error signal corresponding thereto; a controller for controlling the slave reproducing apparatus in response to the error signal, to bring the first and second audio signals into synchronization; and a switch for switching the first audio signal to a sound system when the first and second audio signals are out of synchronization, and for switching the second audio signal to the sound system when the first and second audio signals are in synchronization, in response to the controller, whereby the higher quality
    Type: Grant
    Filed: September 12, 1986
    Date of Patent: July 19, 1988
    Inventor: Fred James