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DSP-based variable aperture code generation technique

  • US 20030156660A1
  • Filed: 05/08/2002
  • Published: 08/21/2003
  • Est. Priority Date: 02/20/2002
  • Status: Active Grant
First Claim
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1. Apparatus for generating a single side band (SSB) variable aperture coded (VAC) signal, comprising:

  • a digital signal processor (12) for generating a discrete time VAC signal which has a sinusoidal shape and a spectral peak in appositive frequency range; and

    means (14) for isolating the positive spectral peak and a portion of surrounding spectrum in the VAC signal generated by the digital signal processor.

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