Communications: directive radio wave systems and devices (e.g. – Return signal controls radar system – Receiver
Reexamination Certificate
2008-01-29
2008-01-29
Tarcza, Thomas H. (Department: 3662)
Communications: directive radio wave systems and devices (e.g.,
Return signal controls radar system
Receiver
C342S089000, C342S042000, C342S044000, C342S047000
Reexamination Certificate
active
10540553
ABSTRACT:
An attack is activated in a receiver amplifier of an interrogator whenever an amplified input signal exceeds an attack threshold voltage value Vatt, and the receiver amplifier at least during a waiting period, the length of which preferrably equals the double length of the longest time interval between adjacent pulses in a transponder data wave packet, after the end of the attack does not respond in the sense of setting the gain. However, the amplifier responds with a decay activated after the lapse of the waiting period, which started when the instantaneous amplified signal value for the last time after the end of the attack exceeded a waiting threshold voltage level Vw. The decay rate is of the same order of magnitude as the attack rate. The improved method for automatically setting the gain renders it possible that the interrogator receiver within the non-contacting identification system practically does not change the essential characteristics of the input signal.
REFERENCES:
patent: 3239835 (1966-03-01), Crow
patent: 3599864 (1971-08-01), Liddle
patent: 3969725 (1976-07-01), Couvillon et al.
patent: 4010465 (1977-03-01), Dodington et al.
patent: 4047171 (1977-09-01), Fugit
patent: 4325146 (1982-04-01), Lennington
patent: 4491930 (1985-01-01), Hyatt
patent: 4893539 (1990-01-01), Nishimoto
patent: 5276430 (1994-01-01), Granovsky
patent: 5537105 (1996-07-01), Marsh et al.
patent: 5721552 (1998-02-01), Rossius et al.
patent: 5809142 (1998-09-01), Hurta et al.
patent: 6122331 (2000-09-01), Dumas
patent: 6360090 (2002-03-01), Holcombe et al.
patent: 6661336 (2003-12-01), Atkins et al.
patent: 6975206 (2005-12-01), Reining
patent: 7046122 (2006-05-01), Forster
patent: 2002/0008578 (2002-01-01), Wright et al.
patent: 2002/0015436 (2002-02-01), Ovard et al.
patent: 2004/0179547 (2004-09-01), Kuffner et al.
patent: 2005/0169345 (2005-08-01), Urbas et al.
Kunc Vinko
Stern Anton
Jacobson & Holman PLLC
Ly Hien
Tarcza Thomas H.
LandOfFree
Method of automatically setting the gain of an interrogator... does not yet have a rating. At this time, there are no reviews or comments for this patent.
If you have personal experience with Method of automatically setting the gain of an interrogator..., we encourage you to share that experience with our LandOfFree.com community. Your opinion is very important and Method of automatically setting the gain of an interrogator... will most certainly appreciate the feedback.
Profile ID: LFUS-PAI-O-3923934