Verfahren zur Abschätzung eines Rundfunksignaltyps zur Minimierung der Kanalinstallationszeit

摘要

This invention speeds up channel search process performed on multiple broadcast types by a new method which estimates the broadcast type by the use of power levels which are extracted from the given frequency spectrum. By using the power level distribution on a given frequency spectrum, the broadcast type of a signal (analog/digital) is estimated and this estimation is used in channel search procedure by fistly testing each frequency step with its estimated broadcast type. This method can be used on all set top boxes, digital plasma-tft televisions, integrated digital televisions which have the support for multiple broadcast types.