Method for the terrestrially transmitting digital signals

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United States of America Patent

PATENT NO 6366309
SERIAL NO

08860676

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ATTORNEY / AGENT: (SPONSORED)

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Abstract

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A method is proposed that is used for terrestrial transmission of at least one digital signal, in particular a digital radio and/or TV broadcasting signal. In this method, the at least one digital signal, reduced in its data quantity by coding, is modulated, preferably by the OFDM method, and converted into the frequency position of at least one channel, adjacent to at least one occupied or unoccupied channel (30, 32) for transmitting an analog TV broadcasting signal, and is broadcast in this frequency position. The dynamic scope and the amplitude of the spectrum (41) of the at least one digital signal must undershoot a respectively predetermined value that is markedly less than the dynamic scope or amplitude of the video carrier of the spectrum (35, 36) of the analog TV broadcasting signal, so that there will be only slight intermodulation and cross modulation with other digital signals or with analog signals of other channels. The spectrum (41) of the at least one digital signal is transmitted, separated from at least one adjacent channel (30, 31) by a protective frequency margin (45). When a plurality of digital signals are transmitted in the at least one channel (31), the frequency ranges of at least two digital signals are transmitted, separated from one another by a protective frequency margin (50).

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Patent Owner(s)

Patent OwnerAddress
NOLA SEMICONDUCTOR LLC2215-B RENAISSANCE DRIVE SUITE 5 LAS VEGAS NV 89119

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Inventor(s)

Inventor Name Address # of filed Patents Total Citations
Siegle, Gert Hildesheim, DE 7 285

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