Wireless methods and devices employing steganography
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United States of America Patent
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Apr 22, 2008
Grant Date -
Mar 21, 2002
app pub date -
Aug 7, 2001
filing date -
Apr 25, 1996
priority date (Note) -
Expired
status (Latency Note)
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Abstract
Wireless devices and methods employ steganography to convey auxiliary data in addition to audio information. An exemplary application is a battery-powered cell phone, having, e.g., a microphone, a speaker, a modulator, an antenna, and an RF amplifier. The steganographically-encoded auxiliary data can be sent to, and/or sent from, such a device, and used for purposes including authentication, system administration, etc.
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