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Browse Prior Art Database

Illegal Contents Tracking by Automatic ID Embedding at Intermediate Server

IP.com Disclosure Number: IPCOM000014072D
Original Publication Date: 1999-Nov-01
Included in the Prior Art Database: 2003-Jun-19

Publishing Venue


Related People

Kohtaroh Miyamoto Satoru Sawada


A program is disclosed which automatically embeds the user-ID onto the multimedia content which has been accessed from the Internet. There are many illegal multimedia contents on a open network such as the Internet which infringes the copyright of the content owner. The purpose of this program is to track not only the last illegal content user but also the whole list of illegal contents users which have passed that content. The technology used to embed the user-ID is often referred to as digital invisible watermark. Digital invisible watermarks have the characteristic of being able to embed digital information onto digital multimedia contents without degrading the quality of the image/audio. It is required that the digital invisible watermark has the feature to continously append the user-ID watermarks to a given extent. The system may be described as the following. 1. Initially, the information which represents the copyright owner will be embedded prior to uploading into the Internet. 2. The intermediate server, e.g. provider, gateway server, proxy server, will check if there are any copyright owner information already embedded. And if there are none, the content will be downloaded as with previous methods. But if copyright owner information is already embedded, then the user-ID who requested the download will be automatically appended. A typical user-ID may be an IP address. Previous methods of tracking illegal usage either required special hardware or had no capability of tracking previous illegal usage.