Patents by Inventor Peter E. Krebs

Peter E. Krebs 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).

  • Testing communications systems
    Patent number: 4991196
    Abstract: Test apparatus for signalling systems having plural terminal units (26X) and line-pair connections (24X) therefor, comprises off-line test equipment (10) for parameters or conditions of said connections (24X), and connection means (30) of or for the test equipment (10) relative to said system. The connection means (30) comprising plural connectors (32X, 34X) as inputs for a number of said connections (24X) to said terminal units and multi-way switch means (40X) affording selection of said inputs (32X) one at a time for communication with other facilities of said off-line test equipment (10).
    Type: Grant
    Filed: July 11, 1989
    Date of Patent: February 5, 1991
    Inventor: Peter E. Krebs