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Digital wireless audio transmission system

  • US 9,916,835 B2
  • Filed: 01/21/2016
  • Issued: 03/13/2018
  • Est. Priority Date: 01/22/2015
  • Status: Active Grant
First Claim
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1. A digital wireless audio transmission system comprising:

  • a wireless receiving unit for receiving wirelessly transmitted high frequency signals;

    wherein the wireless receiving unit has;

    a high frequency analysis unit configured to convert the high frequency signal into received data;

    a decoder configured to decode the received data into digital audio data;

    an audio processing unit configured to;

    process the digital audio data;

    output an audio output signal; and

    activate or deactivate the audio output signal; and

    an error detection unit configured to detect transmission errors and an error rate associated with the transmission errors;

    wherein the decoder is adapted to, upon the occurrence of errors in the wireless transmission, produce digital audio data from error-affected received data by estimation;

    wherein the error detection unit is adapted to;

    compare the error rate to a first threshold value and a second threshold value,wherein the second threshold value is lower than the first threshold value;

    wherein the audio processing unit is configured to account for audio artefacts and a hysteresis effect by;

    deactivating the audio output when the error rate exceeds the first threshold value; and

    re-activating the audio output only when the error rate falls below the second threshold value and when the error rate remains below the second threshold for a pre-determined period of time.

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