System and method for reducing interference in microwave...

Communications: directive radio wave systems and devices (e.g. – Presence detection only – By motion detection

Reexamination Certificate

Rate now

  [ 0.00 ] – not rated yet Voters 0   Comments 0

Details

C342S027000

Reexamination Certificate

active

07872604

ABSTRACT:
A microwave sensor comprises an oscillator configured to generate a microwave signal at a pre-determined frequency, and an antenna configured to transmit the microwave signal and/or to receive reflected signals. The antenna is linear polarized at 45 degrees and the transmitted microwave signal has an electric field at 45 degrees to the plane of the horizontal. The microwave sensor further includes a signal processor coupled to the antenna and configured to process the reflected signals to determine a presence of a moving object.

REFERENCES:
patent: 3761908 (1973-09-01), Gehman
patent: 3794992 (1974-02-01), Gehman
patent: 4079361 (1978-03-01), Woode
patent: 4308536 (1981-12-01), Sims et al.
patent: 4328487 (1982-05-01), Cheal
patent: 4346774 (1982-08-01), Hirota et al.
patent: 4360905 (1982-11-01), Hackett
patent: 4630051 (1986-12-01), Adams et al.
patent: 4717916 (1988-01-01), Adams et al.
patent: 5227800 (1993-07-01), Huguenin et al.
patent: 5337058 (1994-08-01), Cross
patent: 5512834 (1996-04-01), McEwan
patent: 5760660 (1998-06-01), Nagatsu et al.
patent: 5973636 (1999-10-01), Okubo et al.
patent: 6043790 (2000-03-01), Derneryd et al.
patent: 6057802 (2000-05-01), Nealy et al.
patent: 6104346 (2000-08-01), Rudish et al.
patent: 6107955 (2000-08-01), Wagner
patent: 6127965 (2000-10-01), McDade et al.
patent: 6239736 (2001-05-01), McDonald et al.
patent: 6278409 (2001-08-01), Zuta
patent: 6313643 (2001-11-01), Tirkel et al.
patent: 6342696 (2002-01-01), Chadwick
patent: 6359582 (2002-03-01), MacAleese et al.
patent: 6377202 (2002-04-01), Kropfli et al.
patent: 6424298 (2002-07-01), Nishikawa et al.
patent: 6587246 (2003-07-01), Anderton et al.
patent: 6825456 (2004-11-01), Chadwick et al.
patent: 7019683 (2006-03-01), Stevens et al.
patent: 7170449 (2007-01-01), Eide
patent: 7205926 (2007-04-01), Rowe et al.
patent: 7355546 (2008-04-01), Randall
patent: 7423604 (2008-09-01), Nagai
patent: 2003/0162566 (2003-08-01), Shapira et al.
“76 GHz post-wall waveguide fed parallel plate slot array with 45degree linear polarization”, Hirokawa, J. Ando, M. , Dept. Of Electr. Eng., Tokyo Inst. of Technol. ;Microwave Symposium Digest., 2000 IEEE MTT-S International, 2000, vol. 3, On pp. 1973-1976 vol. 3.
“A Portable Coaxial Collinear Antenna” B.B. Balsley, W.L. Ecklund, IEEE Trans. Ant. Prop. AP-20(4), 513-516, 1972.

LandOfFree

Say what you really think

Search LandOfFree.com for the USA inventors and patents. Rate them and share your experience with other people.

Rating

System and method for reducing interference in microwave... does not yet have a rating. At this time, there are no reviews or comments for this patent.

If you have personal experience with System and method for reducing interference in microwave..., we encourage you to share that experience with our LandOfFree.com community. Your opinion is very important and System and method for reducing interference in microwave... will most certainly appreciate the feedback.

Rate now

     

Profile ID: LFUS-PAI-O-2675205

  Search
All data on this website is collected from public sources. Our data reflects the most accurate information available at the time of publication.