System and method for error correction in high definition tv...

Details System and method for error correction in high definition tv... System and method for error correction in high definition tv...

H - Electricity

04

N

H04N 7/68 (2006.01)

Patent

CA 2597180

An input signal such as a HDTV signal is split into a primary signal, which can be decoded if desired, and an secondary signal, which can remain compressed. The primary signal may be delayed and then both signals are transmitted to a receiver. If no error in the primary signal is detected, the primary signal is used to display data. Otherwise, the secondary signal, which arrives before the primary signal and consequently which is available for substitution, is displayed.

Selon cette invention, un signal d'entrée, tel qu'un signal HDTV, est divisé en un signal primaire, qui peut être décodé si nécessaire, et en un signal secondaire qui peut rester compressé. Le signal primaire peut être retardé, après quoi les deux signaux sont envoyés à un récepteur. Si aucune erreur n'est détectée dans le signal primaire, celui-ci est utilisé pour afficher les données. Sinon, le signal secondaire, qui arrive avant le signal primaire et qui peut par conséquent être utilisé comme signal de substitution, est affiché.

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