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Modulation system

  • US 20040246060A1
  • Filed: 06/09/2003
  • Published: 12/09/2004
  • Est. Priority Date: 06/09/2003
  • Status: Active Grant
First Claim
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1. A modulation system comprising:

  • a first constant envelope modulator modulating a signal according to a first control signal;

    a second constant envelope modulator modulating a signal according to a second control signal; and

    a combining portion combining output signals of said first and said second constant envelope modulators to a single, two-level pulse-width-modulated signal, wherein information for representation by a modulation of said single, two-level pulse-width-modulated signal is coded in said first and said second control signals.

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