Systems and methods for spread spectrum communication of...

Details Systems and methods for spread spectrum communication of... Systems and methods for spread spectrum communication of...

H - Electricity

04

N

H04N 7/08 (2006.01) H04L 27/30 (2006.01) H04B 1/707 (2006.01)

Patent

CA 2385088

System and methods for the communication and recovery of supplementary data (22) encoded in the primary information (26) transmitted from a source to a receiver for both audio and television transmissions. The method includes modulating a carrier signal with the supplementary data using a spread spectrum approach (34) and demodulating (88) the carrier signal to recover the embedded supplementary data.

La présente invention concerne des systèmes et des procédés pour la communication et la récupération de données supplémentaires (22) codées dans une information primaire (26) transmise à partir d'une source vers un récepteur pour une transmission sonore et visuelle à la fois. Le procédé consiste à moduler le signal de porteuse avec les données supplémentaires au moyen d'une approche à étalement de spectre (34) et à démoduler (88) le signal de porteuse en vue de récupérer les données supplémentaires qui y sont incorporées.

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