06404898 is referenced by 191 patents and cites 34 patents.

Image or audio content data is encoded to steganographically convey plural bit auxiliary data. The content data is thereafter subjected to lossy compression/decompression, and the auxiliary data can still be recovered and used, e.g., to control associated audio or video equipment.

Title
Method and system for encoding image and audio content
Application Number
9/338995
Publication Number
6404898 (B1)
Application Date
June 24, 1999
Publication Date
June 11, 2002
Inventor
Geoffrey B Rhoads
West Linn
OR, US
Agent
Digimarc Corporation
US
Agent
William Y Conwell
US
Assignee
Digimarc Corporation
OR, US
IPC
H04K 1/00
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