Patents by Inventor Erwin Wolfle

Erwin Wolfle 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).

  • Target classification method
    Patent number: 6573861
    Abstract: A target classification method for radar systems wherein, in particular, jet aircraft, are classified in that the blade repetition rate and, in a further step, the number of blades, of an engine rotor wheel are determined and thus the type of engine is identified. Helicopters are classified by determining the blade repetition period of the primary or tail rotor.
    Type: Grant
    Filed: October 20, 1988
    Date of Patent: June 3, 2003
    Assignee: Telefunken Systemtechnik GmbH
    Inventors: Hans Hommel, Franz Jehle, Martin König, Johnannes Schmid, Dietmar Talke, Erwin Wölfle
  • Radar arrangement
    Patent number: 4881077
    Abstract: A radar arrangement which is particularly useful for the terrain following radar of an aircraft avoids disturbances from rain echoes by utilizing an antenna arrangement with a transmitting/receving directional antenna which is circularly polarized. A supplementary receiving antenna of orthogonally-circularly polarized type is used in conjunction with the directional antenna. From a comparison of the signal level distinctions is made between a target and a rain echo. The rain echo can thus be suppressed to give a truer target signal.
    Type: Grant
    Filed: June 9, 1987
    Date of Patent: November 14, 1989
    Assignee: Licentia Patent-Verwaltungs-GmbH
    Inventors: Franz Jehle, Martin Konig, Erwin Wolfle
  • Method and arrangement for the suppression of rain echos in a terrain following radar
    Patent number: 4739327
    Abstract: To suppress rain echos in a terrain tracking radar with elevation monopulse devices, the signal in the difference channel is amplified by a predetermined factor. By comparing the level of the sum signal with the amplified difference signal, conclusion is reached about the presence of a ground echo or a rain echo. The factor should preferably be automatically adjustable according to the level in the sum channel.
    Type: Grant
    Filed: March 24, 1986
    Date of Patent: April 19, 1988
    Assignee: Licentia Patent-Verwaltungs-GmbH
    Inventors: Martin Konig, David Robinson, Rudolf Lesiow, Erwin Wolfle