Enemy signal detection and warning system
Number of patents in Portfolio can not be more than 2000
United States of America Patent
Stats
-
Aug 30, 1994
Grant Date -
N/A
app pub date -
May 30, 1986
filing date -
May 30, 1986
priority date (Note) -
Expired
status (Latency Note)
Importance
Loading Importance Indicators... 
Abstract
An enemy radar or transmitter transmits a signal at frequency f1. A tag on a friendly forces target receives frequency f1 and, in response thereto, transmits a signal at frequency f2.noteq.f1 modulated by a code unique to the tag. A friendly forces receiver, in response to receiving frequency f2 provides an indication that (a) the tag has received frequency f1, meaning the enemy is operating in the area, and (b) which specific tag has received a signal at frequency f1. The friendly forces can then take appropriate action.
First Claim
Other Claims data not available
Family
Loading Family data...
International Classification(s)
Cited Art Landscape
Patent Citation Ranking
- 2 Citation Count
- G01S Class
- 3.24 % this patent is cited more than
- 31 Age