Importance

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Abstract

Single processing of the first channel search using the analog broadcasting tuner enables not only analog broadcasting channel to be detected but also the existence of digital broadcasting channel to be estimated. Furthermore, the acquisition of information transmitted on a digital broadcasting channel can be made apart from the first channel search when the channel is selected (received) or when the second channel search is performed. As a result, the first channel search (overall channel search) can be efficiently completed in a short time. In the second channel search for acquiring the digital broadcasting information, the number of physical channels to be searched is decreased by limiting to the number of the estimated channels. Accordingly, overall channel search which also acquires the digital broadcasting information is efficiently completed in a short time.

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First Claim