Patents by Inventor David Headlam

David Headlam 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).

  • Embedding and employing metadata in digital music using format specific methods
    Patent number: 7805311
    Abstract: A method of embedding useful data in a digital music file in a way that maintains compatibility with existing digital music formats and players and has no effect on the size of the digital music file or sound quality. A digital music file is analyzed to determine a list of start and end locations of at least n consecutive zeros, defining a list of record locations, where n is an integer greater than two. The file store locations are written in initial record locations of the list of record locations and the data and a start key is written remaining record locations of the list of record locations. A process of retrieving the embedded data is also disclosed.
    Type: Grant
    Filed: June 22, 2007
    Date of Patent: September 28, 2010
    Assignee: University of Rochester
    Inventors: Mark F. Bocko, David Headlam, Zeljko Ignjatovic