Patents by Inventor Rolf Ernst Kowalewski

Rolf Ernst Kowalewski 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: 6160402
    Abstract: A method and apparatus for determining contact resistance (107) includes pressing a lead connector (105) to make a first contact with a metallic pad (103) and an isolated contact with an isolated metallic pad (108) located adjacent to metallic pad (103). Once the first and isolated contacts are formed, the method includes flowing electrical current at a predetermined level through the isolated contact. With the aid of a volt meter (110), voltage differential across the isolated contact is measured while the electrical current at the predetermined level is flowing through the isolated contact. The contact resistance (107) of the first contact is determined based on information obtained from the voltage differential measured across the isolated contact and the predetermined level of the electrical current. Furthermore, the contact force created at the first contact is determined based on the contact resistance (107).
    Type: Grant
    Filed: August 28, 1998
    Date of Patent: December 12, 2000
    Assignee: Motorola, Inc.
    Inventors: Michael Mark Naglich, Scott Joseph Ohnemus, Rolf Ernst Kowalewski
  • Patent number: 5678208
    Abstract: A remote power measuring device (1) is used to measure the power output of the transmission system (20). The measured power is then transmitted to a controller (5) and used by the controller (5), along with preset calibration data (41) for each power amplifier (3), to determine power output adjustment factors (22). The adjustment factors (22) are then communicated to the appropriate power amplifier (3) to adjust its output.
    Type: Grant
    Filed: July 19, 1995
    Date of Patent: October 14, 1997
    Assignee: Motorola, Inc.
    Inventors: Rolf Ernst Kowalewski, Steven James Fillingim, David Thomas Tennant, Kirby Eric Kirchhoff