Patents by Inventor Douglas A. Keyston

Douglas A. Keyston 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).

  • Patent number: 5899700
    Abstract: Methods and apparatus of integrating multimedia materials with didactic printed materials present selected relevant multimedia material in response to the sensing of control codes embedded in context sensitive and/or content sensitive didactic printed material. A store of multimedia information is created, and the store is correlated to related context and/or content sensitive didactic printed material. The store is categorized to transmit certain categories of the stored information from the store to a multimedia display in response to the reception of certain input signals obtained from certain codes embedded in the didactic printed material. The printed didactic material controls the display of the multimedia material. Either preexisting didactic printed material or currently created didactic printed material can be efficiently and economically integrated with multimedia materials to display certain selected multimedia materials at sensitive places of the printed materials.
    Type: Grant
    Filed: September 22, 1997
    Date of Patent: May 4, 1999
    Assignee: Didacticom Partners
    Inventors: John C. Williams, Douglas A. Keyston