Patents by Inventor Alan J. Pullen

Alan J. Pullen 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: 4535366
    Abstract: Method and apparatus for the recording onto a recording medium and playback of digital data, such as digitally encoded audio data, such that the recording medium is playable on either of two different commercial television format video type players. For example, according to the present invention an optical disc having digitally encoded audio data recorded thereon may be playable on either a PAL compatible or an NTSC compatible optical video disc player with minimal modification of the player.
    Type: Grant
    Filed: February 22, 1982
    Date of Patent: August 13, 1985
    Assignee: Discovision Associates
    Inventor: Alan J. Pullen