Patents by Inventor Guido Linsenmaier

Guido Linsenmaier 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).

  • Call status recognition in a broadband private automatic branch exchange
    Patent number: 5157715
    Abstract: In a broadband private automatic branch exchange (BB-PABX) in which a plurality of broadband terminals (BB-E1, . . . , BB-E26) are connected to a broadband switching array (BB-V) to switch video and data signals, the current call status of the system must be signaled to the terminals, so that a broadband connection may be activated. For this purpose, a message characterizing a quiescent state is supplied to one input/output (O) of the broadband switching array (BB-V) of the private automatic branch exchange and all nonswitched input/output (1, 2, . . . , 30) controlled by an associated control unit (C) are linked with the first input/output (O) so that the quiescent state message is always transmitted to all nonswitched terminals.
    Type: Grant
    Filed: January 31, 1991
    Date of Patent: October 20, 1992
    Assignee: Alcatel N.V.
    Inventors: Oliver Fischer, Guido Linsenmaier