Digital Signal Encoding and Decoding Apparatus
Adelson, E. H.
United States Patent 4,939,515 (1990).
Acrobat (626K)
Digital data is conveyed along with the analog signal by selectively quantizing the analog signal in response to the
level of each of the digital bits to be sent. By determining which quantization function was used, a decoder may
recover the embedded digital data.
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