Patents by Inventor Gregory A. Martens

Gregory A. Martens 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).

  • Dial-up switching and transmission of broadband communication channels through a local exchange
    Patent number: 5329572
    Abstract: A telephone exchange provides dial-up switched connections for customers' broadband data terminal equipment (DTE). In response to data received over an associated narrowband channel, the exchange establishes a broadband transmission path to a broadband DTE associated with the narrowband channel. Upon receiving a number for the called party broadband DTE over the narrowband channel, the switch establishes an interoffice broadband channel for communications between the originating and destination DTE.
    Type: Grant
    Filed: September 24, 1992
    Date of Patent: July 12, 1994
    Assignee: AT&T Bell Laboratories
    Inventor: Gregory A. Martens