Patent ID: 9665698
Date: 2017-05-30
CPC Classifications: G06F,G10L,H04N

Claim:
1. A method to decode audio data, the method comprising: receiving, at a processor, audio data having protected information embedded in the audio data; receiving, at the processor, a license file containing a first portion of a set of information required to access the protected information embedded in the audio data; processing, by executing an instruction with the processor, the license file to obtain at least one of decoding information, message codes, a decoding algorithm or diagnostic information; producing, by executing an instruction with the processor, a stream of symbol values for each code symbol included in the received audio data; accumulating, by executing an instruction with the processor, the stream of symbol values in a storage device; detecting, by executing an instruction with the processor, a presence of an encoded message based on the stream of symbol values; and outputting the detected message.