Пристрій для прийому сигналів IP телебачення з використанням технології HSDPA

Abstract

A device for receiving IPTV signals using HSDPA, which comprises an antenna switch, band-pass filter unit for pre-amplification, analog-to-digital converter, the code converter, the output of which is connected to the input of the demultiplexer, the first output of which is connected with the sound decoder, the output of which is connected to the interface block, and the second output of the demultiplexer is connected with a video decoder, the output of which is connected to a device for displaying information, and the second output to the control microcontroller, the first output of which is connected with a device for displaying information, the second output of the control of the microcontroller is connected with the identification unit, and the second output of the control of the microcontroller is connected with the input of the code converter, the adder, wherein the introduced buffer amplifier, which is connected with the first input of the mixer, and the second input of the mixer is connected to the frequency synthesizer. The output of the mixer is connected with the unit of the pre-amplification, which is connected to the input of the block orthogonal modulation with a plurality of strut-frames, the output of which is connected with unit of the digital separation, is connected with the unit of inverse fast Fourier transform, the input of which is connected to the output of the digital separation unit, and the output of the unit of inverse fast Fourier transform is connected with the equalizer, the output of which is connected with the digital filter, which is connected with the unit the frequency of the separation with the one strut-frame multiple access, the output of which is connected to the input of the adder, the output of which is connected to the input of the block orthogonal modulation with a plurality of strut-frames, the second output of the mixer is connected with the frequency synthesizer, and the output of the mixer is connected with the power amplifier, the output of which is connected with the input of the band-pass filter, which is connected to the input of the antenna of the key.