Low complexity error concealment for wireless transmission
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United States of America Patent
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Dec 26, 2006
Issued Date -
N/A
app pub date -
May 10, 2003
filing date -
Apr 4, 2003
priority date (Note) -
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Abstract
An apparatus and method for concealing errors in digital data. An interpolator estimates a value of a sample of digital data from other samples of the digital data. The interpolator has an input for inputting the digital data and an output for outputting the estimated value of the sample of the digital data. A holding unit has an input for selectively receiving the sample of the digital data only when the sample is error free, and an output for outputting the error free sample. The input of the holding unit may be in parallel with the input of the interpolator. A selector selects between outputting the estimated value of the sample of the received digital data from an output of the interpolator and outputting the error free sample of the received digital data from an output of a holding unit based on at least one error indicator.
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