Patents by Inventor Hans-Gorg Preller

Hans-Gorg Preller 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).

  • Digital radio transmission system
    Patent number: 4799252
    Abstract: A cellular digital radio transmission system which increases the number of available communication channels between base stations and mobile stations in such system. Message transmission from a base station to its assigned mobile stations is effected by a combination of time-division, code-division and frequency-division multiplexing. Message transmission from the mobile stations assigned to a particular base station is effected by at least one of such multiplexing modes.
    Type: Grant
    Filed: March 7, 1988
    Date of Patent: January 17, 1989
    Assignee: U.S. Philips Corp.
    Inventors: Alfons Eizenhoffer, Hans-Gorg Preller