Print control method using electronic watermark information

Details Print control method using electronic watermark information Print control method using electronic watermark information

2006-07-04

2006-07-04

Wu, Jingge (Department: 2624)

Image analysis

Applications

C382S175000, C713S176000

Reexamination Certificate

active

07072489

ABSTRACT:
If identifying information for identifying a print request is not included in the print request transmitted from a user computer, the identifying information for the print request is generated, and the identifying information is embedded in a received image data to be printed as an electronic watermark. The image data in which the electronic watermark has been embedded is stored by associating that image with the identifying information and the image data is outputted to a print server. If the identifying information is included in the print request, image data corresponding to the identifying information is searched, and electronic watermark information of the identifying information related to the previous print request is extracted from the searched image data to transmit it to the user computer.

REFERENCES:
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patent: 6233684 (2001-05-01), Stefik et al.
patent: 6341294 (2002-01-01), Yoshida
patent: 6580806 (2003-06-01), Sato
patent: 6628417 (2003-09-01), Naito et al.
patent: 6650761 (2003-11-01), Rodriguez et al.
patent: 6823075 (2004-11-01), Perry
patent: 2002-156980 (2002-05-01), None
U.S. Appl. No. 09/471,227, filed Dec. 23, 1999.

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