Networked multimedia overlay system

Details Networked multimedia overlay system Networked multimedia overlay system

H - Electricity

04

N

H04N 21/4405 (2011.01) H04L 9/30 (2006.01) H04N 5/44 (2011.01)

Patent

CA 2566742

Systems and methods are disclosed for providing encrypted downstream signals to a plurality of receiver devices (130, 135, 140), where the devices (130, 135, 140) may have different decryption devices. A receiver network (i.e., a networked multimedia system) includes a splitter/isolation module (SIM) (125), a primary set-top terminal (STT) (130), and at least one remote device (135, 140). The remote devices (135, 140) communicate with the primary STT (130) via the SIM (125) over coaxial cable. Accordingly, the remote devices (135, 140) are capable of requesting and receiving stored programs via the networked multimedia overlay system. Depending upon the decryption device included in the requesting remote STT (135, 140), the primary STT (130) sends a stored program encrypted according to that decryption device.

La présente invention concerne des systèmes et des procédés d'envoi de signaux aval chiffrés à une pluralité de dispositifs de réception (130, 135, 140) lesquels peuvent avoir des dispositifs de déchiffrement différents. Un réseau de récepteur (c'est-à-dire un système multimédia réseauté) comprend un module de division/isolement (SIM) (125), un terminal primaire de coffret d'abonné (STT) (130) et au moins un dispositif éloigné (135, 140). Les dispositifs éloignés (135, 140) communiquent avec le STT primaire (130) via le SIM (125) sur un câble coaxial. De cette manière, les dispositifs éloignés (135, 140) peuvent demander et recevoir des programmes stockés via le système de couche multimédia réseauté. Le STT primaire (130) envoie au STT éloigné demandeur (135, 140) un programme stocké, chiffré conformément au dispositif de déchiffrement inclus dans le STT éloigné demandeur.

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