Communications: directive radio wave systems and devices (e.g. – Determining distance – Material level within container
Reexamination Certificate
2006-01-17
2006-01-17
Gregory, Bernarr E. (Department: 3662)
Communications: directive radio wave systems and devices (e.g.,
Determining distance
Material level within container
C342S118000, C342S175000, C342S188000, C073S29000R, C324S629000, C324S631000, C324S637000
Reexamination Certificate
active
06987481
ABSTRACT:
The present invention relates to a radar filling level measuring device capable of generating and receiving an elliptically polarized wave and, as a special case, a circularly polarized wave, using a directional coupler which, according to a particular embodiment, may be configured as a 3 dB coupler. By simultaneously using a 3 dB coupler the necessary separation into transmitting and receiving functions can be achieved. Moreover, the present invention relates to a use of a directional coupler for generating an elliptically polarized wave and, as a special case, a circularly polarized wave, as well as to a method for generating and receiving an elliptically polarized wave.
REFERENCES:
patent: 3568190 (1971-03-01), Wong
patent: 4458530 (1984-07-01), Bastida
patent: 5136299 (1992-08-01), Edvardsson
patent: 5543720 (1996-08-01), Edvardsson
patent: 5546088 (1996-08-01), Trummer et al.
patent: 6759976 (2004-07-01), Edvardsson
patent: 2002/0095987 (2002-07-01), Lutke et al.
patent: 2002/0154052 (2002-10-01), Fehrenbach et al.
patent: 93 12 251.9 (1994-01-01), None
patent: 4334079 (1995-04-01), None
patent: 19803067 (1999-07-01), None
patent: 10023497 (2001-11-01), None
patent: 10102439 (2002-07-01), None
patent: 10102571 (2003-01-01), None
patent: 0060597 (1982-09-01), None
patent: WO-9301474 (1993-01-01), None
patent: WO-0188488 (2001-11-01), None
patent: WO-2004/097347 (2004-11-01), None
patent: WO-0241101 (2005-05-01), None
“International Search Report in corresponding PCT Application No. PCT/EP2004/003222”, (Oct. 26, 2004), 3 pages.
Fehrenbach Josef
Griessbaum Karl
Gregory Bernarr E.
Schwegman Lundberg Woessner & Kluth P.A.
VEGA Grieshaber KG
LandOfFree
Radar filling level measurement using circularly polarized... does not yet have a rating. At this time, there are no reviews or comments for this patent.
If you have personal experience with Radar filling level measurement using circularly polarized..., we encourage you to share that experience with our LandOfFree.com community. Your opinion is very important and Radar filling level measurement using circularly polarized... will most certainly appreciate the feedback.
Profile ID: LFUS-PAI-O-3556153