Verification of radio station watermarking with software defined radios
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United States of America Patent
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Feb 6, 2018
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app pub date -
Dec 15, 2016
filing date -
Dec 15, 2016
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Abstract
Methods, apparatus, systems and articles of manufacture (e.g., physical storage media) to verify radio station watermarking with software defined radios are disclosed. Example methods disclosed herein to verify watermarking of radio station broadcasts include calibrating a notch filter to attenuate a first radio station broadcast signal. Disclosed example methods also include tuning a software defined radio to demodulate a second radio station broadcast signal from an output of the notch filter, the second radio station broadcast signal different from the first radio station broadcast signal. Disclosed example methods further include processing, with a watermark decoder, audio data resulting from the tuning of the software defined radio to verify watermarking of the second radio station broadcast signal.
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