Patents by Inventor Herr A. Plank

Herr A. Plank 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: 4442426
    Abstract: Plural transmitters, which transmit signals to a common receiver, transmit their signals in a fixed time-staggered pattern. As a result, the individual signals which are transmitted by the respective transmitters do not interfere with one another or influence one another. Between the fixed time-staggered signals, which are sent out, for example, as standard signals to facilitate routinelike monitoring, signals of a higher priority, for example alarm signals, can be transmitted without any time delay. This is particularly suited for use in connection with a personal security and monitoring system, in which the function monitoring of the unit and the wireless connection between several transmitters and a receiving center must constantly be monitored, and signals of a higher priority, namely alarm signals, are transmitted without delay.
    Type: Grant
    Filed: February 4, 1981
    Date of Patent: April 10, 1984
    Assignee: Compur-Electronic GmbH
    Inventors: Herr F. Heuschmann, Herr A. Plank