Importance

Loading Importance Indicators...

Abstract

Provided is a digital broadcasting receiver that converts received signals including broadcasting signals of all channels directly to digital ones and then processes them, without change of intermediate frequency thereof. The inventive broadcasting receiver comprises an antenna for receiving signals of entire broadcasting bands on which broadcasting channels exist, a digital conversion module that includes a Variable Gain Amplifier (VGA) module for sampling the received signals from the antenna at sampling frequencies with no aliasing and amplifying the signals, an analog to digital conversion module for sampling the output signals from the VGA module to convert them to digital received digitals and a power detector module for detecting powers of the digital received signals to apply them to a gain value of the VGA module, and a digital processing module for extracting only a signal of desired channel from the output signals of the digital conversion module. The broadcasting receiver of the invention can save a manufacturing cost and also can efficiently use its overall implementation space by making a channel selection by a digital process without using an analog tuner.

Loading the Abstract Image...

First Claim