Digital television transmitter identification system using pseudo-random sequences
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United States of America Patent
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Apr 10, 2007
Grant Date -
Sep 23, 2004
app pub date -
Jan 28, 2004
filing date -
Jan 30, 2003
priority date (Note) -
In Force
status (Latency Note)
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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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Family
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Cited Art Landscape
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