A disposition Modulation, dual mode, a First and a Second Signal bandwidth is narrower than the first Signal, and a Modulation radiotelefonoque incorporates such provision,And a Modulation method of double Mode, which uses the available

摘要

A disposition Modulation, dual mode for a First signal and a Second Signal bandwidth is narrower than the first Signal to a Signal permitemodular Narrow beamwidthAs a Narrow band FM signal in a moduladorque modulates a wide bandwidth Signal, such as a CDMA Signal,By oversampling the signal bandwidth and the application of the narrow bandwidth Signal sobremuestreada ofbanda narrow the Modulator.The sobremuestrear deancho of narrow band Signal.It is possible to use the same Fixed low-pass filter for both the signalfrom bandwidth for the signal sobremuestreada width as Narrow bandwidth.Consequently, different filters are not necessary pasabajosnifiltros lowpass switched.The Invention also proposes a radiotelephone includes such provision and unasenal comprising means to modulate a Carrier.To generate a First signal and apply the same Modulation means that generate a Second Signal bandwidth is more angostoque sobremuestreada and Modulation applied to the media.It also proposes a method of modulation, dual modeUsing this disposicionque consists in applying a signal from a narrow to Wide debanda Modulator to modulate the signal and the same sobremuestrear sobremuestreada.It modulauna Narrow bandwidth Signal, such as a Narrow band FM signal in a Modulator that modulates a wide bandwidth Signal, such comounasenal CDMABy oversampling the signal bandwidth and the application of the narrow bandwidth Signal sobremuestreada Narrow almodulador.The sobremuestrear Narrow Signal bandwidth.It is possible to use the same Fixed low-pass filter to the signal bandwidth anchocomo for sobremuestreada Narrow Signal bandwidth.Consequently, different filters are not necessary or pasabajosconmutados lowpass Filters.