Method and system for selling data

Details Method and system for selling data Method and system for selling data

H - Electricity

04

L

H04L 9/32 (2006.01) G06F 17/30 (2006.01) G06Q 30/00 (2006.01) G06T 1/00 (2006.01)

Patent

CA 2317141

Desired data is retrieved. A part of the data which contains a buried electronic watermark is extracted from the retrieved data and output. A section of data where the electronic watermark is buried is detected from the data. A charge unit corresponding to the detected electronic watermark information is retrieved from a customer management database, and a charge for use of the picture information is calculated.

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