05841886 is referenced by 293 patents and cites 237 patents.

Security of photographic identification documents is enhanced by embedding within the photographic image encoded information that may be correlated to other information pertaining to the individual represented by the image, such other information being, for example, printed on the document adjacent to the photograph.

Title
Security system for photographic identification
Application Number
438159
Publication Number
5841886
Application Date
December 4, 1996
Publication Date
November 24, 1998
Inventor
Geoffrey B Rhoads
West Linn
OR, US
Agent
Klarquist Sparkman Campbell Leigh & Whinston
Assignee
Digimarc Corporation
OR, US
IPC
H04N 1/32
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