Number | Date | Country | Kind |
---|---|---|---|
9-183429 | Jul 1997 | JP |
Number | Name | Date | Kind |
---|---|---|---|
5319735 | Preuss et al. | Jun 1994 | |
5734752 | Knox | Mar 1998 | |
5809139 | Girod et al. | Sep 1998 | |
5848155 | Cox | Dec 1998 | |
5915027 | Cox et al. | Jun 1999 | |
5930369 | Cox et al. | Jul 1999 | |
6061793 | Tewlik et al. | May 2000 | |
6069914 | Cox | May 2000 | |
6154571 | Cox et al. | Nov 2000 |
Number | Date | Country |
---|---|---|
0 766 468 | Apr 1997 | EP |
2 740 897 | May 1997 | FR |
4-349488 | Dec 1992 | JP |
WO 9726733 | Jul 1997 | WO |
Entry |
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J. Onishi et al., “A watermarking scheme to image data by PN sequence”, SCIS'97, 26B, pp. 1-8, 1997 (with English abstract). |
European Search Report dated Jun. 7, 1999 for EP 98112561. |
W. Bender et al., “Techniques for Data Hiding”, IBM Systems Journal, vol. 35, Nos. 3 & 4, pp. 313-335, 1996. |