Patent №
US 6,845,360
Granted
2005-01-18
Filed 2002
Owner
ARBITRON INC.
Lab
—
AI components
2
speech · evo
Assignment
Recorded
Dataset
AIPD
2023_r1 edition
Application
10302309
Systems and methods are provided for encoding and decoding 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.
AI classification
Ownership
ARBITRON INC.
assignment · 138990014