Patents by Inventor Bruno Auer

Bruno Auer 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).

  • Two-way ring communication system for elevator group control
    Patent number: 5202540
    Abstract: Each car controller (10) in a multicar elevator system provides two serial asynchronous full duplex I/O channels to communicate with the next and previous car controllers. These two channels allow the transmission of a message in two opposite directions (32,34) on a communications ring. A single interruption of the ring, by an interrupted transmission line or a disturbed car controller for example, guarantees the transmission of messages to each car controller in at least one of the two directions.Each car controller contains three remote serial link interfaces. The first remote serial link interfaces to the car fixtures; car buttons, car tell tale lights, etc. The second remote serial link interfaces to car related hall fixtures; hall position indicator hall lantern, etc. The third remote serial link interfaces to the group related hall fixtures; hall buttons, hall tell tale lights, etc.
    Type: Grant
    Filed: March 23, 1987
    Date of Patent: April 13, 1993
    Assignee: Otis Elevator Company
    Inventors: Bruno Auer, Jurgen Schlotter