Telecommunications – Radiotelephone system – Zoned or cellular telephone system
Reexamination Certificate
2011-07-19
2011-07-19
Shedrick, Charles (Department: 2617)
Telecommunications
Radiotelephone system
Zoned or cellular telephone system
C455S456100, C455S065000, C342S457000, C343S766000
Reexamination Certificate
active
07983669
ABSTRACT:
A method is provided for verifying plotting results when multiple signals of the same frequency have been detected from different directions. Signal characteristics of the signals detected from different directions are compared so that, on the basis of the signal comparison, a decision may be made as to whether a reflection from the same transmitter is occurring, or different transmitters are involved.
REFERENCES:
patent: 6078788 (2000-06-01), Haardt
patent: 7265728 (2007-09-01), Tsao
patent: 5-203714 (1993-08-01), None
patent: WO 95/14935 (1995-06-01), None
patent: WO 96/31010 (1996-10-01), None
patent: WO 98/29755 (1998-07-01), None
patent: WO 99/33302 (1999-07-01), None
International Search Report dated Apr. 4, 2007 (five (5) pages).
Jung Norbert
Kienle Siegfried
Kottke Thomas
Crowell & Moring LLP
EADS Deutschland GmbH
Shedrick Charles
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