Digital broadcast signal, digital television receiver, and...

Details Digital broadcast signal, digital television receiver, and... Digital broadcast signal, digital television receiver, and...

H - Electricity

04

N

H04N 21/435 (2011.01)

Patent

CA 2578974

A digital broadcast signal for use in a digital television receiver includes a rating region table carrying rating information for multiple geographical regions, and a master guide table carrying information related to the rating region table. The master guide table includes a version number field defining a version number of the rating region table and at least one effective time field defining an effective time of the version number. The effective time represents a time after which a use of the rating region table is permitted. For example, it may be represented by a number of global positioning system (GPS) seconds since a coordinated universal time (UTC). The effective time field is included in a descriptor within the master guide table.

Signal à diffusion numérique destiné à équiper un récepteur de téléviseur numérique, comprenant un tableau de cotation par région qui contient des informations pour plusieurs régions géographiques, et un tableau guide principal qui contient des informations concernant le tableau de cotation des régions. Le tableau guide principal comprend un domaine du numéro de version qui définit la durée effective du numéro de version. La durée effective représente le délai au bout duquel l'utilisation du tableau de cotation des régions est permise. Par exemple, la durée peut être représentée par un nombre de secondes du système de positionnement global (GPS) par rapport au temps universel coordonné. Le champ de temps effectif est inclus dans un descripteur dans le tableau guide principal.

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