Wave transmission lines and networks – Coupling networks – Nonreciprocal gyromagnetic type
Reexamination Certificate
2005-06-28
2005-06-28
Summons, Barbara (Department: 2817)
Wave transmission lines and networks
Coupling networks
Nonreciprocal gyromagnetic type
C333S101000, C333S129000, C333S132000, C343S842000, C340S870030, C340S870030, C455S041300, C455S500000
Reexamination Certificate
active
06911876
ABSTRACT:
The invention relates to a terminal for communication with data supports which function in a non-contact manner, comprising a transreceiver circuit with two resonant circuits with antenna and condenser for the emitting of two radio frequency fields of different carrier frequencies, whereby the common antenna (A) for both resonant circuits comprises a winding.
REFERENCES:
patent: 3771158 (1973-11-01), Hatcher
patent: 5317330 (1994-05-01), Everett et al.
patent: 5355521 (1994-10-01), Henoch et al.
patent: 5726630 (1998-03-01), Marsh et al.
patent: 5734332 (1998-03-01), Kirknes
patent: 6232870 (2001-05-01), Garber et al.
patent: 6310581 (2001-10-01), Stockhammer
patent: 6335906 (2002-01-01), Engelmann
patent: 6342844 (2002-01-01), Rozin
patent: 6427065 (2002-07-01), Suga et al.
patent: 6674365 (2004-01-01), Grabner
patent: 2003/0071732 (2003-04-01), Grabner
patent: 4213065 (1993-10-01), None
patent: 10002311 (2001-06-01), None
patent: 19831767 (2002-03-01), None
patent: 0 642 096 (1995-03-01), None
patent: 61-265905 (1986-11-01), None
patent: WO99/63496 (1999-12-01), None
Flynn Thiel Boutell & Tanis PC
Skidata AG
Summons Barbara
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