07174031 is referenced by 189 patents and cites 45 patents.

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 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.

Title
Methods for using wireless phones having optical capabilities
Application Number
11/132031
Publication Number
7174031 (B2)
Application Date
May 17, 2005
Publication Date
February 6, 2007
Inventor
Tony F Rodriguez
Portland
OR, US
Geoffrey B Rhoads
West Linn
OR, US
Agent
Digimarc Corporation
Assignee
Digimarc Corporation
OR, US
IPC
G06F 3/03
G06K 9/22
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