Digital multimedia receiver

Digital multimedia receiver

  • CN 1,798,282 B
  • Filed: 12/20/2004
  • Issued: 08/22/2012
  • Est. Priority Date: 12/20/2004
  • Status: Active Grant
First Claim
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1. digital multimedia receiver that is used for the signal of processing single-carrier modulated signals and multi-carrier modulation comprises:

  • Tuner, the multi-media signal that is used for tuning reception is to corresponding wave band;

    ADC, being used for tuning analog signal conversion is digital signal;

    Lock unit, be used to use the modulating mode indication synchronously from the digital signal of ADC to produce synchronizing signal;

    Demodulating unit is used to use the synchronous signal of modulating mode indication demodulation lock unit;

    WithChannel decoder is used for through the signal decoding of demodulating unit demodulation and export the signal of gained,Wherein, lock unit comprises;

    timing recovery block is used to use modulating mode to indicate and compensates the timing error from the digital signal of ADC;

    Carrier recovery block, the output signal frequency error that is used to use modulating mode to indicate and compensates timing recovery block is to produce synchronizing signal.

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