The invention provides a spread-spectrum transmission system with multiple carrier modulation in which the signals for transmission over each of the subcarriers are filtered prior to being transmitted over the subcarrier, thereby making it possible on reception to synchronize the various subcarriers...http://www.google.fr/patents/US6680966?utm_source=gb-gplus-shareBrevet US6680966 - Spread-spectrum transmission system with filtered multi-carrier modulation
Spread-spectrum transmission system with filtered multi-carrier modulation
