Telecommunications – Transmitter – Noise or interference elimination
Reexamination Certificate
2006-04-25
2006-04-25
Vo, Nguyen T. (Department: 2685)
Telecommunications
Transmitter
Noise or interference elimination
C375S297000
Reexamination Certificate
active
07035601
ABSTRACT:
A transmitter compensates for the non-linearities within a transmission chain. The transmitter includes, for instance, a first forming device for forming, on the basis of at least one set of signal properties, at least one state expansion vector comprising quantities characterizing a signal. The transmitter includes a modifier for modifying the signal characterizing quantities of at least one state expansion vector with the at least one time-domain compensation parameter vector and with the at least one frequency-domain compensation parameter vector to form a pre-distorted signal. The transmitter includes a second forming device for forming a feedback signal from an output signal of a transmission chain. The transmitter includes an adapter for adapting at least one time-domain compensation parameter vector for adapting at least one frequency-domain compensation parameter vector based on a residual error between a transmit signal and the feedback signal.
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patent: 6587514 (2003-07-01), Wright et al.
patent: 2002/0127986 (2002-09-01), White et al.
patent: 2003/0179831 (2003-09-01), Gupta et al.
patent: 2003/0184372 (2003-10-01), Fudaba et al.
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Heinikoski Kauko
Karjalainen Miia
Lehtinen Risto
Saarinen Samu
Suonperä Jani
Nokia Corporation
Squire Sanders & Dempsey L.L.P.
Vo Nguyen T.
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