TWO-TUNER RECEIVER OF A SATELLITE BROADCASTING SYSTEM AND A METHOD FOR SELECTING THE MODE OF ITS OPERATION Russian patent published in 2021 - IPC H04N5/46 H04H60/09 

FIELD: satellite broadcasting.

SUBSTANCE: invention relates to satellite digital broadcasting technologies, in particular, using two-tuner receivers. A receiver of a digital satellite broadcasting system is proposed, which is equipped with main and additional tuners, each of which is equipped with at least a demodulator and an antenna input for connecting the cable of the corresponding satellite antenna converter and is connected by software and hardware via feedback lines to at least a central control processor equipped with outputs of communication lines of end-user device services, and the antenna input of the additional tuner is isolated, and the output of the main tuner is additionally equipped with a signal amplifier, installed along the switching line with the input of an additional tuner, while the main and additional tuners are connected to each other by means of a hard-software-controlled RF key, one input of which is connected to the output of the main tuner, the second input is equipped with an antenna input, and the output of the key is connected to the antenna input of the additional tuner, while the central processor is connected to the RF key, the main and additional tuners via control channels implemented using firmware.

EFFECT: expansion of the functionality of the receiver of the digital satellite broadcasting system while reducing the level of RF losses and the influence of cross-interference in the receiver, providing an increase in the quality of satellite broadcast signal reception.

24 cl, 4 dwg