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Donald Wadia Moses, Daozheng Lu: Simultaneous transmission of ancillary and audio signals by means of perceptual coding. Donald W Moses, Nielsen Media Research, Haynes & Boone L, March 7, 2000: US06035177 (198 worldwide citation)

A communication system for simultaneously transmitting ancillary codes and audio signals via a conventional audio communications channel using perceptual coding techniques is disclosed. An encoder monitors an audio channel to detect "opportunities" to insert an ancillary code such that the inserted ...


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Donald Wadia Moses, Lu Daozheng: Simultaneous transmission of ancillary and audio signals by means of perceptual coding. Nielsen Media Research, li jialin, March 24, 1999: CN97192541

A communication system for simulataneously transmitting ancillary codes and audio signals via a conventional audio communications channel using perceptual coding techniques is disclosed. An encoder monitors an audio channel to detect"opportunities"to insert an ancillary code such that the inserted s ...


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