Cell phones with optical capabilities, and related applications

Details Cell phones with optical capabilities, and related applications Cell phones with optical capabilities, and related applications

2005-09-20

2005-09-20

Johns, Andrew W. (Department: 2621)

Image analysis

Applications

C455S566000

Reexamination Certificate

active

06947571

ABSTRACT:
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 pattern across the optical sensor's field of view, allowing use of the phone as a gestural input device through which a user can signal instructions to a computer-based process. A variety of other arrangements by which electronic devices can interact with the physical world are also detailed, e.g., involving sensing and responding to digital watermarks, bar codes, RFIDs, etc.

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