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Adaptive communication apparatus

  • US 6,115,426 A
  • Filed: 11/21/1997
  • Issued: 09/05/2000
  • Est. Priority Date: 11/22/1996
  • Status: Expired due to Fees
First Claim
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1. An adaptive communication apparatus for use in a multicarrier transmission system in which a data sequence to be transmitted is divided into a plurality of data sequences, converted into a high-frequency signal including a plurality of carriers with different frequencies and radio-transmitted in parallel, said apparatus comprising:

  • a wave separator for separating a received high-frequency signal into a plurality of carriers;

    a frequency characteristic compensation unit for correcting frequency characteristic of the received high-frequency signal;

    a controller for controlling said frequency characteristic compensation unit through use of the high-frequency signal subjected to signal processing by said frequency characteristic compensation unit and said wave separator;

    a demodulator for demodulating the high-frequency signal thus signal-processed by said frequency characteristic compensation unit and said wave separator in order to output a plurality of data sequences corresponding to the respective carriers; and

    a parallel-to-series converter for producing one data sequence from the plurality of data sequences corresponding to the respective carriers;

    wherein the received high-frequency signal that includes the plurality of carriers is first input to said frequency characteristic compensation unit in order to correct the frequency characteristic of the high-frequency signal;

    the corrected signal is then input to said wave separator in order to obtain signals corresponding to the respective carriers; and

    the obtained signals are input to said controller and said demodulator.

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