Framing structure for digital broadcasting and interactive...

Details Framing structure for digital broadcasting and interactive... Framing structure for digital broadcasting and interactive...

H - Electricity

03

M

H03M 13/33 (2006.01) H04L 7/00 (2006.01) H04L 7/04 (2006.01) H04L 27/227 (2006.01) H04L 27/00 (2006.01)

Patent

CA 2470782

An approach is provided for supporting frame synchronization in a digital broadcast and interactive system. A transmitter (200) includes an encoder (203, 309) that outputs a Low Density Parity Check (LDPC) codeword. The transmitter (200) also includes a framing module generates a LDPC coded frame in response to the LDPC codeword, and appends a physical layer signaling field to the LDPC codeword for specifying modulation and coding information associated with the LDPC coded frame. The physical layer signaling field is encoded with a Forward Error Correction (FEC) code and has an embedded framing structure to assist with frame synchronization. The above arrangement is particularly suited to a digital satellite broadcast system (100).

Méthode de prise en charge de la synchronisation de trames dans un système interactif de diffusion numérique. Un émetteur (200) comprend un codeur (203, 309) qui produit un mot de code de contrôle de parité à faible densité (LDPC). L'émetteur (200) comprend également un module de verrouillage de trame qui génère une trame à code de LDPC en réponse au mot de code de LDPC et qui ajoute un champ de signalisation de couche physique au mot de code de LDPC pour préciser l'information de modulation et de codage associée à la trame à code de LDPC. Le champ de signalisation de couche physique est codé avec un code de correction d'erreur sans voie de retour et comporte une structure de trame intégrée pour faciliter la synchronisation de trames. L'arrangement ci-dessus convient particulièrement à un système de diffusion numérique par satellite (100).

Affiliated with

Also associated with

Rating

Framing structure for digital broadcasting and interactive... does not yet have a rating. At this time, there are no reviews or comments for this patent.

If you have personal experience with Framing structure for digital broadcasting and interactive..., we encourage you to share that experience with our LandOfFree.com community. Your opinion is very important and Framing structure for digital broadcasting and interactive... will most certainly appreciate the feedback.

Rate now

Comments { 0 }

Profile ID: LFCA-PAI-O-1636512