The discontinuous transmission of background noise information and the method for accurate reproduction

The discontinuous transmission of background noise information and the method for accurate reproduction

  • CN 101,208,740 B
  • Filed: 02/01/2006
  • Issued: 11/25/2015
  • Est. Priority Date: 02/01/2005
  • Status: Active Grant
First Claim
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1. between the first equipment and the second equipment, transmit a method for ground unrest, each equipment comprises for transmitting data to miscellaneous equipment and receiving the circuit of data from miscellaneous equipment, and described method comprises:

  • Produce the framing comprising the first frame and one or more subsequent background noise frame, described first frame is for transmitting described ground unrest;

    Come from described first equipment to ground unrest described in described second device transmission by using described first frame, described transmission comprises the first data rate, wherein, described transmission also comprises;

    based on the summation of the absolute difference of the element of the codebook entries of multiple background noise frames, is compared by the average frequency spectrum of the frequency spectrum of current noise frame and described multiple background noise frames;

    And if the difference of frequency spectrum exceedes frequency spectrum threshold value, then transmit the background noise frames of renewal;

    Judge that subsequent background noise frame is stable or temporary transient according to sound;

    Based at least one in subsequent background noise frame described in the determination blanking that the renewal that is stable and described subsequent background noise frame of described subsequent background noise frame does not trigger, wherein, described blanking comprises not transmission frame;

    Keep-alive bag was transmitted before subsequent background noise frame blanking exceedes threshold time;

    Background noise frames is received from described second equipment;

    AndUpgrade the ground unrest be associated with described second equipment.

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