1
Geoffrey B Rhoads, Megan I Livermore: Cell phones with optical capabilities, and related applications. Digimarc Corporation, Digimarc Corporation, September 20, 2005: US06947571 (558 worldwide citation)

A cell phone is equipped with a 2D optical sensor, enabling a variety of applications. For example, such a phone may also be provided with a digital watermark decoder, permitting decoding of steganographic data on imaged objects. Movement of a phone may be inferred by sensing movement of an imaged p ...


2
Geoffrey B Rhoads, Tony F Rodriguez, Megan I Livermore: Methods for using wireless phones having optical capabilities. Digimarc Corporation, September 29, 2005: US20050213790-A1

A wireless phone is equipped with a 2D optical sensor, enabling a variety of applications. For example, such a phone may also be provided with a digital watermark decoder, permitting decoding of steganographic data on imaged objects. Movement of a phone may be inferred by sensing movement of an imag ...



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