Patents by Inventor Ralf Pfannkuchen

Ralf Pfannkuchen 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).

  • Circuit and method for providing access to a test and/or monitoring system
    Patent number: 7773728
    Abstract: A circuit (10) and method for providing test and/or monitoring access to at least two telecommunication lines (18). This circuit (10) comprises at least one bus (12) and at least two primary branches (14) extending there from, at least one of the primary branches (14) being provided with at least one switch (26), which in a first state connects the primary branch (14) with the bus (12) and in a second state connects the primary branch (14) with ground. The method comprises the step of connecting only that primary branch (14), through which access to a telecommunication line 18 is to be established, with the bus (12).
    Type: Grant
    Filed: February 3, 2005
    Date of Patent: August 10, 2010
    Assignee: 3M Innovative Properties Company
    Inventor: Ralf Pfannkuchen
  • Carrier of a Distribution Point in the Field of Telecommunications
    Publication number: 20080002371
    Abstract: A carrier (10) of a distribution point in the field of telecommunication has a generally open, frame-like structure with at least three substantially parallel bars (12) arranged in at least two planes, the bars being maintained in a fixed relationship with each other, and at least one of the bars (12) being adapted to mount telecommunications modules (32) thereon.
    Type: Application
    Filed: February 28, 2005
    Publication date: January 3, 2008
    Inventors: Ralf Pfannkuchen, Axel Koruschowitz
  • Circuit and Method for Providing Access to a Test and/or Monitoring System
    Publication number: 20070283068
    Abstract: A circuit (10) and method for providing test and/or monitoring access to at least two telecommunication lines (18). This circuit (10) comprises at least one bus (12) and at least two primary branches (14) extending there from, at least one of the primary branches (14) being provided with at least one switch (26), which in a first state connects the primary branch (14) with the bus (12) and in a second state connects the primary branch (14) with ground. The method comprises the step of connecting only that primary branch (14), through which access to a telecommunication line 18 is to be established, with the bus (12).
    Type: Application
    Filed: February 3, 2005
    Publication date: December 6, 2007
    Inventor: Ralf Pfannkuchen