Recording/reproduction and/or editing of real time...

G - Physics – 11 – B

Patent

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Details

G11B 20/12 (2006.01) G11B 20/10 (2006.01) G11B 27/034 (2006.01) G11B 27/10 (2006.01) H04N 5/76 (2006.01) H04N 5/765 (2006.01) G11B 27/036 (2006.01) H04N 5/781 (2006.01) H04N 5/85 (2006.01)

Patent

CA 2290498

Various measures are proposed for enabling simultaneous reading and writing of real time information, such as a digital video signal, from/onto a disc-like record carrier. The measures embody a requirement to the size of the blocks of information recorded in fixed sized fragment areas on the record carrier, and may require a re-ordering of read steps in a read/write cycle. Further, measures are disclosed to enable reproduction and seamless editing. The seamless editing method requires the generation of one or more bridging blocks to be recorded in fixed size fragment areas on the disk like record carrier.

La présente invention concerne diverses mesures qui permettent de lire et d'écrire simultanément de l'information en temps réel, telle qu'un signal vidéo numérique, depuis/sur un support d'enregistrement de type disque. Les mesures comprennent une exigence en matière de taille des blocs d'information qui sont enregistrés, sur le support d'enregistrement, dans des zones de fragments à tailles fixes. Ces mesures peuvent aussi exiger une recomposition des étapes de lecture dans un cycle écriture/lecture. La présente invention concerne aussi des mesures destinées à permettre une restitution et une édition sans coupure. Ce procédé d'édition sans coupure nécessite la génération d'un ou de plusieurs blocs de chevauchement et leur enregistrement, sur le support d'enregistrement de type disque, dans des zones de fragments à tailles fixes.

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