Apparatus and method for concealing data bursts in an analog scrambler using audio repetition
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United States of America Patent
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Dec 2, 2003
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app pub date -
Nov 18, 1997
filing date -
Nov 18, 1997
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Abstract
An apparatus and method for concealing data bursts in an analog scrambler using parts of the audio of a signal in substitution for the data bursts. What otherwise would be periodic data bursts appearing at the audio output are replaced with selected portions from audio portions of the multiplexed signal. Preferably the replaced audio samples come from immediately past and immediately future portions of the audio of the signal. The data bursts are therefore effectively concealed from the audio output which improves on the degradation of audio otherwise caused by the data bursts that are mixed in periodically with the audio portions of the signal.
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