3Ohsawa T,Karita M. Automatic telecasting or radio broadcasting monitoring system. U S Patent,C3760275),1973. 被引量：1
4Crosby M G. Communication including submerged identification signal. U S Patent,(3845391),1974. 被引量：1
5Solar C M. Automatic monitor for programs broadcast. U S Patent, (4025851), 1977. 被引量：1
6Craver S,Memon N Yeo B L,Yeung M. Resolving rightful ownerships with invisible watermarking techniques: Limitation, attacks,and implications. IEEE Trans. on Selected Areas of Communications,1998,16(4) : 573-586. 被引量：1
7Friedman G L. The trustworthy camera: restoring credibility to the photographic image. IEEE Trans on Consumer Electronics, 1993,39(4) : 905-910. 被引量：1
8Friedman G L. Digital camera with apparatus for authentication of images produced from an image file. U S Patent, (5499294), 1996. 被引量：1
9Bloom J A,Cox I J,Kalker T,Linnartz J-P,Miller M L,Traw B. Copy protection for DVD vidio. Proceedings of the IEEE, 1999,87 (7) : 1267-1276. 被引量：1
10Bell A E. The dynamic digital disk. IEEE Spectrum, 1999, 36(10) : 28-35. 被引量：1
