Encoding multiple messages in audio data and detecting same

Details Encoding multiple messages in audio data and detecting same Encoding multiple messages in audio data and detecting same

G - Physics

10

L

G10L 19/00 (2006.01)

Patent

CA 2506933

Systems and methods are provided for encoding (104) and decoding (112) multiple messages in audio data. The messages each comprise a sequence of message symbols each comprising a combination of substantially single- frequency components. At least some of the message symbols in one of the messages coexist with at least some of the symbols of another one of the messages along a time base of the audio data.

L'invention concerne des systèmes et des procédés permettant de coder et de décoder plusieurs messages en données audio. Chaque message comprend une séquence de symboles de message, chacun comprenant une combinaison de composants à fréquence sensiblement unique. Au moins certains de ces symboles dans l'un de ces messages coexistent avec au moins certains des symboles d'un autre des messages le long d'une base temporelle des données audio.

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