Telecommunications – Transmitter and receiver at same station – With transmitter-receiver switching or interaction prevention
Reexamination Certificate
2007-03-13
2007-03-13
Le, Lana (Department: 2618)
Telecommunications
Transmitter and receiver at same station
With transmitter-receiver switching or interaction prevention
C455S082000, C455S083000
Reexamination Certificate
active
10507465
ABSTRACT:
A circuit arrangement for a multimode mobile telephone that transmits and receives signals to and from various mobile radio networks contains a baseband and a transceiver unit. The transceiver unit includes a digital adaptive predistorter having a switching element. The switching element is arranged so that an optional connection is created. The optional connection connects an amplifier output to an input of a receiver causing that receiver input to be disconnected from an antenna changeover switch. This way, it is possible for the receiver to be disconnected from a transmitting and receiving antenna during periods when the receiver is not receiving signals from the transmitting and receiving antenna. While the receiver is disconnected from the transmitting and receiving antenna, the receiver is able to receive other signals. By using a simple switch the receiver can be disconnected from the transmitting and receiving antenna, and at the same time establish a connection between the output of the transmitter amplifier and the input of the receiver. By doing so, the receiver is able to tap off and detect signals at the output of the transmitter amplifier.
REFERENCES:
patent: 6552609 (2003-04-01), Hamada et al.
patent: 7035345 (2006-04-01), Jeckeln et al.
patent: 7047042 (2006-05-01), Komara et al.
patent: 2002342756 (2002-03-01), None
patent: 0700169 (1996-03-01), None
patent: 0 715 420 (1996-06-01), None
patent: 0 928 072 (1999-07-01), None
patent: 1 014 591 (2000-06-01), None
patent: 1 067 676 (2001-01-01), None
patent: 1 217 757 (2002-06-01), None
patent: 8-204605 (1996-08-01), None
patent: WO 01/99298 (2001-12-01), None
Patent Abstracts of Japan—08204605-809-96.
Irscheid Otmar
Langer Andreas
Vollmer Jürgen
Angelica Perez
Bell Boyd & Lloyd LLP
Le Lana
Siemens Aktiengesellschaft
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