Telecommunications – Transmitter – Noise or interference elimination
Reexamination Certificate
2006-03-07
2006-03-07
Bui, Bing Q. (Department: 2642)
Telecommunications
Transmitter
Noise or interference elimination
C455S063100, C455S296000, C455S304000
Reexamination Certificate
active
07010277
ABSTRACT:
The present invention relates to an apparatus for cancellation of electromagnetic interferences (n), including means (3) for dividing a reference signal (sc) into a first and second signal (scl, scQ) having different phases, tow multipliers (4, 5) for each multiplying a weight coefficient to one of the phase displaced signals (scl, scQ) each and for outputting a multiplied signal each, and adder (6) for adding the two multiplied signals and for outputting a corrected reference signal (sn), and a subtracter (7) for subtracting the corrected reference signal (sn), from an input signal (sd) and for outputting an error signal (se). According to the invention different weight coefficients (l(f), Q(f)) are used for different frequencies or frequency bands (f) of the interference (n).
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Andre Tore
Torstensson Uno
Bui Bing Q.
Burleigh Roger
Telefonaktebolaget LM Ericsson (publ)
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