H - Electricity – 04 – L
Patent
H - Electricity
04
L
H04L 9/32 (2006.01) G06F 12/14 (2006.01) G09C 5/00 (2006.01) G11B 20/00 (2006.01) H04N 1/387 (2006.01) H04N 5/91 (2006.01) H04N 7/08 (2006.01) H04N 7/081 (2006.01) H04N 9/82 (2006.01) G06T 1/00 (2006.01)
Patent
CA 2237975
A summing section adds, by summing process, additional information corresponding to the least significant bit of the digital video signal S1 to the digital video signal S1 and records the video signal S2 to which the additional information is added to a recording medium with a writing section. When the video signal, being recorded on a recording medium, to which the additional information is added is duplicated to the other recording medium, the additional information is extracted for utilization by subtracting the original video signal to which the additional information is not added from the duplicated video signal to which the additional information is added.
Une section de sommation ajoute à un signal vidéo numérique S1, au moyen d'un processus de sommation, une information additionnelle correspondant au bit de poids faible de ce signal et enregistre sur un support d'enregistrement comportant une section d'écriture le signal vidéo S2 qui contient l'information additionnelle ajoutée. Quand le signal enregistré sur le support et auquel l'information additionnelle a été ajoutée est dupliqué sur un autre support d'enregistrement, le dispositif de l'invention extrait cette information additionnelle pour fins d'utilisation en soustrayant du signal vidéo dupliqué qui contient l'information additionnelle ajoutée le signal vidéo originel auquel l'information additionnelle n'a pas été ajoutée.
Gowling Lafleur Henderson Llp
Sony Corporation
LandOfFree
Information adding/extracting method, information... does not yet have a rating. At this time, there are no reviews or comments for this patent.
If you have personal experience with Information adding/extracting method, information..., we encourage you to share that experience with our LandOfFree.com community. Your opinion is very important and Information adding/extracting method, information... will most certainly appreciate the feedback.
Profile ID: LFCA-PAI-O-1964760