H - Electricity – 04 – B
Patent
H - Electricity
04
B
340/72
H04B 15/00 (2006.01) H04B 3/23 (2006.01)
Patent
CA 1211524
18 ABSTRACT: A receiver for a data transmission modem pro- cesses the baseband signal of the receive path and com- prise an echo canceller and an equalizer which have a common subtracting circuit for subtracting from the re- ceived signal the synthetic echo and synthetic interference signals generated in the echo canceller and the equalizer. The output signal of the subtracting circuit is sampled for application to a circuit forming the respective error signals are used to adjust the filters of the echo can- celler and the equalizer. This output signal of the sub- tracting circuit is further applied to a circuit for re- covering the clock of the received data after having been sampled at a frequency which satisfies the Shannon theo- rem with regard to the signal transmitted by the modem, while the synthetic echo signal is generated at this sampling frequency.
438874
Brie Richard
Guidoux Loic B.y.
Philips Commununication D'entreprise
Van Steinburg C.e.
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