H - Electricity – 04 – N
Patent
H - Electricity
04
N
H04N 7/08 (2006.01) H04N 5/913 (2006.01) H04N 9/804 (2006.01)
Patent
CA 2245415
Visual influence on the reproduced image by the spectrum spread additional information signal can be controlled on he reproduced image by sequentially changing the level of the spectrum spread additional information signal with the predetermined pattern in each chip section on the occasion of superimposing, to the video signal, the spectrum spread additional information signal in which the additional information such as duplication preventing control information and copy right information, etc. is spectrum spread.
L'influence visuelle sur l'image reproduite par le signal d'information supplémentaire du spectre étalé peut être contrôlée sur l'image reproduite. Cela s'effectue par la modification séquentielle du niveau du signal avec le motif prédéterminé dans chaque section de pastille en superposant, au signal vidéo, le signal dans lequel le spectre de l'information supplémentaire, comme l'information de contrôle visant à prévenir la duplication et l'information sur les droits d'auteur, est étalé.
Ikeda Nozomu
Kimura Yuji
Kohashi Takashi
Moriwaki Hisayoshi
Ogino Akira
Gowling Lafleur Henderson Llp
Sony Corporation
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