Communications: directive radio wave systems and devices (e.g. – Radar ew – Detection of surveilance
Patent
1997-09-12
1999-06-29
Sotomayor, John B.
Communications: directive radio wave systems and devices (e.g.,
Radar ew
Detection of surveilance
455227, G01S 740
Patent
active
059174412
ABSTRACT:
A frequency scheme for a police radar detector enables the K band and the K.sub.a band to be scanned during a single sweep of a local oscillator which drives a mixer at its fundamental operating mode to produce intermediate frequency signals around 5 Ghz. The frequency scheme simultaneously activates two or four frequency conversion paths in the police radar detector. Accordingly, a radar warning alarm can be given upon detection of radar signals in any one of the frequency conversion paths. The ambiguity as to which one of the two or four frequency conversion paths is receiving a detected radar signal is resolved by applying first and second modulation signals to first and second local oscillators, respectively, so that the radar band of the detected radar signal can also be included within the radar warning alarm. The first and second modulation signals are in quadrature to one another and quadrature correlation is used to determine which frequency conversion path is receiving a radar signal.
REFERENCES:
patent: 4939521 (1990-07-01), Burin
patent: 4952936 (1990-08-01), Martinson
patent: 5068663 (1991-11-01), Valentine et al.
patent: 5083129 (1992-01-01), Valentine et al.
patent: 5116248 (1992-05-01), Hiers et al.
patent: 5146226 (1992-09-01), Valentine et al.
patent: 5206651 (1993-04-01), Valentine et al.
patent: 5268689 (1993-12-01), Ono et al.
patent: 5305007 (1994-04-01), Orr et al.
patent: 5315302 (1994-05-01), Katsukura et al.
patent: 5446923 (1995-08-01), Martinson et al.
Groth Clarence Richard
Scholl Stephen Ray
Valentine Michael David
Sotomayor John B.
Valentine Research, Inc.
LandOfFree
Police radar detector for sweeping K and K.sub.A radar bands dur does not yet have a rating. At this time, there are no reviews or comments for this patent.
If you have personal experience with Police radar detector for sweeping K and K.sub.A radar bands dur, we encourage you to share that experience with our LandOfFree.com community. Your opinion is very important and Police radar detector for sweeping K and K.sub.A radar bands dur will most certainly appreciate the feedback.
Profile ID: LFUS-PAI-O-1379219