Digital television transmitter identification system using...

Television – Television transmitter circuitry

Reexamination Certificate

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Details

C348S614000, C455S456100, C342S357490, C375S295000

Reexamination Certificate

active

10765138

ABSTRACT:
The invention relates to a transmitter identification system, which utilizes an identification signal embedded into a digital television signal, enabling the transmitter of origin to be identified at a receiving station. Ideally the identification signal is an orthogonal pseudo-random sequence time synchronized to the signal frame structure of the digital television signal. Particularly designed for single frequency networks, identification of the various transmitted signals enables the network to be tuned to eliminate or minimize multi-path effects at certain locations, which receive transmissions from various transmitters.

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